How to install a lock washer?

Place the lock washer between the threaded fastener (like a nut) and the screw / bolt head. Make sure that the lock washer press against the fastener & other adjacent surfaces and forms a tight connection. Press the fastener down to lock the grooves of a tooth lock washer with the grooves of the nut. Use a wrench or ratchet to tighten the nut or threaded fastener. Make sure that the teeth of the tooth lock washer are covered completely by the nut / fastener head, or that the split lock washer is slightly out of alignment to indicate tension on the threaded fastener. Users may loosen the nut / threaded fastener to adjust the washer if it is not operating correctly.

How to remove a lock washer?

After the operation is completed, the washer can be removed by simply removing the nut / threaded fastener that is holding the washer in place using a vise-grip or pipe wrench. Use a flat screwdriver to pry the lock washer off. When removing a split washer, the screwdriver head should be placed inside the split or beneath the washer and pushed. When removing a washer having teeth, the screwdriver head should be placed under a tooth and pushed up, repeating the procedure with more teeth if required. For other lock washer types, the screwdriver head can be placed below the washer and pushed up. The washer may break during removal, depending on the amount of pressure being applied. If the lock washer does not budge, use penetrating oil and repeat the previous step. Some lock washers can be used multiple times easily. Other washers (split lock) can be used only 1 or 2 times. Users should not reuse a split lock washer or other damaged washers. Do not use old washers in high-stress joint applications.

What is the difference between lock washers and flat washers?

Flat washers are suitable for increasing the surface area and distributing the applied force when tightening the fastener. They can be used on the fastener's bolt & nut sides, or used as spacers where using a bolt may not be suitable. Lock washers create tension during tightening to prevent the loosening of nuts. They are generally used on the fastener's nut side for applications involving vibrations.

Which type of lock washers has the highest vibration resistance?

Split Lock, Tooth Lock, Diamond-Coated Lock, Spring Lock and Wedge Lock type lock washers have vibration resistance in ascending or increasing order.

Lock Washers | Raptor Supplies United Kingdom

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Hot Dipped Galvanized Steel Split Lock Washers

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Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Thickness	Class	Hardness	Type	Material	Price (inc. VAT)	Pkg. Qty.
A	U37025.150.0001	1 1/2"	1.504"	2.419"	3/8"	Not Applicable	-	Split Lock	Steel	£22.72	1
B	U37025.175.0001	1 3/4"	1.758"	2.679"	0.389"	Not Applicable	-	Split Lock	Steel	£24.65	5
C	U37025.137.0001	1 3/8"	1.379"	2.219"	0.344"	Not Applicable	-	Split Lock	Steel	£17.95	5
D	U37025.250.0001	2 1/2"	2.512"	3.471"	11/25"	Not Applicable	-	Split Lock	Steel	£45.53	5
E	U37025.200.0001	2"	2.008"	2.936"	0.422"	Not Applicable	-	Split Lock	Steel	£35.77	5
F	U37025.043.0001	7/16"	11/25"	0.77"	0.109"	-	Rockwell C38-C46	Split Lock	Steel	£4.03	1

APPROVED VENDOR -

Plain Grade 18-8 Stainless Steel External Tooth Lock Washers

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Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Hardness	Thickness	Thickness Tolerance	Class	Price (inc. VAT)
A	U51460.011.0001	#4	0.115"	0.245"	-	0.012"	-	Not Applicable	£3.84
B	U51460.013.0001	#6	0.141"	0.305"	Rockwell C45-C50	0.016"	0.016" to 0.022"	Not Applicable	£6.95
C	U51460.016.0001	#8	0.168"	0.365"	Rockwell C35	0.018"	-	Not Applicable	£2.16
D	U51460.019.0001	#10	0.195"	0.395"	Rockwell C35	0.018"	-	Not Applicable	£2.96
E	U51460.050.0001	1/2"	0.513"	22/25"	Rockwell C35	0.037"	-	Not Applicable	£6.34
F	U51460.025.0001	1/4"	0.256"	0.494"	Rockwell C20-C45	0.023"	0.023" to 0.028"	Not Applicable	£11.64
G	U51460.037.0001	3/8"	0.384"	0.67"	Rockwell C35	0.032"	-	Not Applicable	£9.46
H	U51460.031.0001	5/16"	8/25"	0.588"	Rockwell C35	0.028"	-	Not Applicable	£3.24

APPROVED VENDOR -

Zinc Plated Grade 2 Steel Internal and External Tooth Lock Washers

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Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Thickness	Class	Hardness	Type	Material	Price (inc. VAT)	Pkg. Qty.
A	U37590.011.0001	#4	0.123"	0.475"	0.02"	Not Applicable	Rockwell C40-C50	Internal And External Tooth Lock	Steel	£13.02	100
B	U37590.013.0001	#6	0.15"	0.51"	0.028"	Not Applicable	Rockwell C40-C50	Internal And External Tooth Lock	Steel	£14.65	1
C	U37590.016.0001	#8	0.176"	0.61"	0.034"	Not Applicable	Rockwell C40-C50	Internal And External Tooth Lock	Steel	£10.24	100
D	U37590.019.0001	#10	0.204"	0.61"	0.034"	Not Applicable	Rockwell C40-C50	Internal And External Tooth Lock	Steel	£20.41	100
E	U37590.025.0001	1/4"	0.267"	19/25"	1/25"	Not Applicable	Rockwell C40-C50	Internal And External Tooth Lock	Steel	£42.21	1
F	U37590.031.0001	5/16"	0.332"	0.9"	1/25"	Not Applicable	Rockwell C40-C50	Internal And External Tooth Lock	Steel	£36.08	100

FABORY -

Plain Stainless Steel External Tooth Lock Washers

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Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Thickness	Color	Type	Material	Finish	Price (inc. VAT)	Pkg. Qty.
A	B55460.012.0001	#5	0.129"	0.27"	0.014"	-	External Tooth Lock	Stainless Steel	Plain	£66,053.17	50000
B	B51460.031.0001	#6	8/25"	0.588"	0.028"	-	External Tooth Lock	Stainless Steel	Plain	£1,876.69	25000
C	B51460.016.0001	#8	0.168"	0.365"	0.018"	-	External Tooth Lock	Stainless Steel	Plain	£2,171.84	50000
D	B53460.062.0001	#8	0.641"	1.045"	0.042"	-	External Tooth Lock	Stainless Steel	Plain	£5,540.13	5000
E	B51460.037.0001	#8	0.384"	0.67"	0.032"	-	External Tooth Lock	Stainless Steel	Plain	£2,070.43	14450
F	B53460.031.0001	#8	8/25"	0.588"	0.028"	-	External Tooth Lock	Stainless Steel	Plain	£2,539.88	25000
G	B51460.050.0001	#10	0.513"	22/25"	0.037"	-	External Tooth Lock	Stainless Steel	Plain	£1,734.22	5000
H	B53460.075.0001	#10	0.768"	1.22"	0.047"	-	External Tooth Lock	Stainless Steel	Plain	£2,051.45	2500
I	B51460.019.0001	#10	0.195"	0.395"	0.018"	-	External Tooth Lock	Stainless Steel	Plain	£5,557.05	50000
J	L51460.030.0001	M3	3.2 mm	6 mm	0.4 mm	Silver	External Tooth Lock	Stainless Steel	Plain	£2,528.17	50000
K	L51460.040.0001	M4	4.3 mm	8 mm	0.5 mm	Silver	External Tooth Lock	Stainless Steel	Plain	£1,164.60	50000
L	L51460.050.0001	M5	5.3 mm	10 mm	0.6 mm	Silver	External Tooth Lock	Stainless Steel	Plain	£955.60	25000
M	L51460.051.0001	M5	5.1 mm	9 mm	0.5 mm	Silver	External Tooth Lock	Stainless Steel	Plain	£3,685.83	25000
N	L51460.060.0001	M6	6.4 mm	11 mm	0.7 mm	Silver	External Tooth Lock	Stainless Steel	Plain	£2,993.79	25000
O	L51460.082.0001	M8	8.2 mm	14 mm	0.8 mm	Silver	External Tooth Lock	Stainless Steel	Plain	£1,904.60	15850
P	L51460.080.0001	M8	8.4 mm	15 mm	0.8 mm	Silver	External Tooth Lock	Stainless Steel	Plain	£1,771.36	15850
Q	L51460.100.0001	M10	10.5 mm	18 mm	0.9 mm	Silver	External Tooth Lock	Stainless Steel	Plain	£884.25	8300
R	L51460.120.0001	M12	13 mm	20.5 mm	1 mm	Silver	External Tooth Lock	Stainless Steel	Plain	£1,167.76	6650
S	L51460.160.0001	M16	17 mm	26 mm	1.2 mm	Silver	External Tooth Lock	Stainless Steel	Plain	£948.31	3120
T	L51460.200.0001	M20	21 mm	33 mm	1.4 mm	Silver	External Tooth Lock	Stainless Steel	Plain	£1,679.76	1665
U	L51460.240.0001	M24	25 mm	38 mm	1.5 mm	Silver	External Tooth Lock	Stainless Steel	Plain	£1,249.96	1250

DISC-LOCK -

Plain Stainless Steel Wedge Lock Washers

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Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Thickness	Hardness	Color	Type	Material	Price (inc. VAT)	Pkg. Qty.
A	SSG-110	1"	10.015"	10.626"	6/25"	Rockwell C25	Silver	Wedge Lock	Stainless Steel	£562.66	1
B	SSG-105	1/2"	0.51"	0.937"	0.136"	Rockwell C25	Silver	Wedge Lock	Stainless Steel	£471.89	100
C	SSG-101	1/4"	0.262"	0.495"	0.101"	Rockwell C25	Silver	Wedge Lock	Stainless Steel	£501.36	200
D	SSG-108	3/4"	0.82"	10.381"	0.183"	Rockwell C25	Silver	Wedge Lock	Stainless Steel	£1,051.60	100
E	SSG-103	3/8"	0.409"	0.705"	0.135"	Rockwell C25	Silver	Wedge Lock	Stainless Steel	£699.59	200
F	SSP-100	3/16"	0.203"	0.401"	2/25"	Rockwell C25	Silver	Wedge Lock	Stainless Steel	£480.20	200
G	SSM-100	5 mm	5.15 mm	10.2 mm	2.03 mm	Rockwell C25	Silver	Wedge Lock	Stainless Steel	£481.46	200
H	SSG-107	5/8"	0.651"	10.247"	0.134"	Rockwell C25	Silver	Wedge Lock	Stainless Steel	£694.27	100
I	SSG-102	5/16"	0.326"	0.628"	0.119"	Rockwell C25	Silver	Wedge Lock	Stainless Steel	£508.44	200
J	SSM-101	6 mm	6.66 mm	12.6 mm	2.56 mm	Rockwell C25	Silver	Wedge Lock	Stainless Steel	£481.46	1
K	SSG-109	7/8"	0.883"	10.47"	6/25"	Rockwell C25	Silver	Wedge Lock	Stainless Steel	£462.86	1
L	SSG-104	7/16"	0.45"	22/25"	0.135"	Rockwell C25	Silver	Wedge Lock	Stainless Steel	£864.46	200
M	SSM-102	8 mm	8.28 mm	16 mm	3.02 mm	Rockwell C25	Silver	Wedge Lock	Stainless Steel	£491.90	1
N	SSG-106	9/16"	0.572"	10.128"	0.127"	Rockwell C25	Silver	Wedge Lock	Stainless Steel	£657.62	100
O	SSM-103	10 mm	10.38 mm	17.9 mm	3.4 mm	Rockwell C25	Silver	Wedge Lock	Stainless Steel	£562.36	1
P	SSM-104	11 mm	11.43 mm	22.4 mm	3.33 mm	Rockwell C25	Silver	Wedge Lock	Stainless Steel	£875.44	1
Q	SSM-105	12 mm	12.95 mm	23.8 mm	3.45 mm	Rockwell C25	Silver	Wedge Lock	Stainless Steel	£438.65	100
R	SSM-106	14 mm	14.53 mm	28.7 mm	3.23 mm	Rockwell C25	Silver	Wedge Lock	Stainless Steel	£542.30	1
S	SSM-107	16 mm	16.53 mm	31.7 mm	3.4 mm	Rockwell C25	Silver	Wedge Lock	Stainless Steel	£597.00	1
T	SSM-108	20 mm	20.82 mm	35.1 mm	4.65 mm	Rockwell C25	Silver	Wedge Lock	Stainless Steel	£898.82	1
U	SSM-109	22 mm	22.44 mm	37.3 mm	6.1 mm	Rockwell C25	Silver	Wedge Lock	Stainless Steel	£462.86	1
V	SSM-110	24 mm	25.78 mm	41.3 mm	6.1 mm	Rockwell C25	Silver	Wedge Lock	Stainless Steel	£562.66	1

METRIC BLUE -

Metric Blue Alloy Steel Split Lock Washers

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Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Thickness	Thickness Tolerance	Hardness	Color	Price (inc. VAT)	Pkg. Qty.
A	UST182827	M3	3.5 mm	5.8 mm	0.9 mm	-0.1 mm to +0.1 mm	Rockwell C44-C51	Blue	£3.40	1
B	UST182828	M4	4.5 mm	7.3 mm	1 mm	-0.1 mm to +0.1 mm	Rockwell C44-C51	Blue	£2.54	100
C	UST182829	M5	5.5 mm	8.8 mm	1.2 mm	-0.1 mm to +0.1 mm	Rockwell C44-C51	Blue	£4.13	100
D	UST187444	M14	14.5 mm	20.5 mm	3 mm	-0.2 mm to +0.2 mm	Rockwell C44-C51	Blue	£44.14	1

APPROVED VENDOR -

Furnace Black Spring Steel Internal Tooth Lock Washers

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Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Thickness	Class	Hardness	Type	Material	Price (inc. VAT)	Pkg. Qty.
A	SIW7S0200-100P1	M2	2.2 mm	4.5 mm	0.3 mm to 0.6 mm	Not Applicable	Rockwell C35-C42	Internal Tooth Lock	Spring Steel	£7.16	100
A	SIW7S0250-100P1	M2.5	2.7 mm	5.5 mm	0.4 mm to 0.8 mm	Not Applicable	Rockwell C35-C42	Internal Tooth Lock	Spring Steel	£7.56	100
A	SIW7S0260-100P1	M2.6	2.8 mm	5.5 mm	0.4 mm to 0.8 mm	Not Applicable	Rockwell C35-C42	Internal Tooth Lock	Spring Steel	£6.36	100
A	SIW7S0350-100P1	M3.5	3.7 mm	7 mm	0.5 mm to 1 mm	Not Applicable	Rockwell C35-C42	Internal Tooth Lock	Spring Steel	£4.97	100
A	SIW7S1400-100P2	M14	15 mm	24 mm	1 mm to 2 mm	Not Applicable	Rockwell C35-C42	Internal Tooth Lock	Spring Steel	£44.68	100
A	SIW7S1600-100P2	M16	17 mm	26 mm	1.2 mm to 2.4 mm	Not Applicable	Rockwell C35-C42	Internal Tooth Lock	Spring Steel	£49.50	100
A	SIW7S1800-050P2	M18	19 mm	30 mm	1.4 mm to 2.8 mm	Not Applicable	Rockwell C35-C42	Internal Tooth Lock	Spring Steel	£39.17	50
A	SIW7S2000-050P2	M20	21 mm	33 mm	1.4 mm to 2.8 mm	Not Applicable	Rockwell C35-C42	Internal Tooth Lock	Spring Steel	£48.73	50

APPROVED VENDOR -

Furnace Black Spring Steel Split Lock Washers

A

Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Thickness	Class	Hardness	Thickness Tolerance	Price (inc. VAT)	Pkg. Qty.
A	LW7S00200-100P1	M2	2.1 mm	4.4 mm	0.5 mm	Not Applicable	Rockwell C44-C51	-0.1 mm to +0.1 mm	£3.71	100
A	LW7S00250-100P1	M2.5	2.6 mm	5.1 mm	0.6 mm	Not Applicable	Rockwell C44-C51	-0.1 mm to +0.1 mm	£3.73	100
A	LW7S00260-100P1	M2.6	2.7 mm	5.2 mm	0.6 mm	Not Applicable	Rockwell C44-C51	-0.1 mm to +0.1 mm	£3.72	100

METRIC BLUE -

Metric Blue Steel Split Lock Washers

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Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Thickness	Thickness Tolerance	Hardness	Type	Material	Price (inc. VAT)	Pkg. Qty.
A	UST187437	M3	3.5 mm	5.5 mm	1 mm	-0.1 mm to +0.1 mm	Rockwell C44-C51	Split Lock	Steel	£8.77	100
A	UST187438	M4	4.5 mm	6.5 mm	1.2 mm	-0.1 mm to +0.1 mm	Rockwell C44-C51	Split Lock	Steel	£8.53	1
A	UST187439	M5	5.5 mm	8.5 mm	1.6 mm	-0.1 mm to +0.1 mm	Rockwell C44-C51	Split Lock	Steel	£9.12	1
A	UST187440	M6	6.5 mm	9.5 mm	1.6 mm	-0.1 mm to +0.1 mm	Rockwell C44-C51	Split Lock	Steel	£9.31	100
A	UST182830	M6	6.5 mm	11.3 mm	1.7 mm	-0.1 mm to +0.1 mm	Rockwell C44-C51	Split Lock	Steel	£9.84	100
A	UST182831	M8	8.5 mm	14.5 mm	2 mm	-0.1 mm to +0.1 mm	Rockwell C44-C51	Split Lock	Steel	£10.40	1
A	UST187441	M8	9 mm	12.5 mm	2 mm	-0.1 mm to +0.1 mm	Rockwell C44-C51	Split Lock	Steel	£11.17	100
A	UST187442	M10	10.5 mm	15.5 mm	2.5 mm	-0.15 mm to +0.15 mm	Rockwell C44-C51	Split Lock	Steel	£20.86	100
A	UST182832	M10	10.5 mm	17.5 mm	2.3 mm	-0.15 mm to +0.15 mm	Rockwell C44-C51	Split Lock	Steel	£19.42	100
A	UST182833	M12	13 mm	20 mm	2.5 mm	-0.15 mm to +0.15 mm	Rockwell C44-C51	Split Lock	Steel	£32.15	100
A	UST187443	M12	12.5 mm	17.5 mm	2.5 mm	-0.15 mm to +0.15 mm	Rockwell C44-C51	Split Lock	Steel	£32.59	1
A	UST187445	M16	16.5 mm	23 mm	3.5 mm	-0.2 mm to +0.2 mm	Rockwell C44-C51	Split Lock	Steel	£56.42	1
A	UST182834	M16	16.5 mm	26.5 mm	3.6 mm	-0.2 mm to +0.2 mm	Rockwell C44-C51	Split Lock	Steel	£40.34	50
A	UST182835	M20	21 mm	32.5 mm	4.2 mm	-0.2 mm to +0.2 mm	Rockwell C44-C51	Split Lock	Steel	£64.02	50
A	UST187447	M20	21 mm	30 mm	4.6 mm	-0.2 mm to +0.2 mm	Rockwell C44-C51	Split Lock	Steel	£52.51	50
A	UST182836	M24	25 mm	40 mm	4.9 mm	-0.2 mm to +0.2 mm	Rockwell C44-C51	Split Lock	Steel	£37.25	25
A	UST187449	M24	25 mm	35 mm	5 mm	-0.2 mm to +0.2 mm	Rockwell C44-C51	Split Lock	Steel	£73.31	25

APPROVED VENDOR -

Zinc Plated Grade 2 Steel External Tooth Lock Washers

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Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Hardness	Thickness	Thickness Tolerance	Class	Color	Price (inc. VAT)	Pkg. Qty.
A	U37420.021.0001	#12	0.231"	0.475"	Rockwell C40-C50	0.027"	0.02" to 0.027"	Not Applicable	Silver	£6.97	100
B	U37420.100.0001	1"	1.025"	1.59"	Rockwell C38-C46	0.059"	0.059" to 0.067"	Not Applicable	Silver	£9.58	1
C	U37420.025.0001	1/4"	0.267"	0.51"	Rockwell C40-C50	0.028"	0.023" to 0.028"	Not Applicable	Silver	£9.04	1
D	U37420.087.0001	7/8"	0.897"	1.38"	Rockwell C38-C46	0.052"	0.052" to 0.06"	Not Applicable	Silver	£6.67	1

FABORY -

Zinc Plated Spring Steel Split Lock Washers

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Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Thickness	Color	Type	Material	Finish	Price (inc. VAT)	Pkg. Qty.
A	M37020.023.0001	M2.3	2.4 mm	4.9 mm	0.6 mm	Gray	Split Lock	Spring Steel	Zinc Plated	£5.00	1
B	M37220.030.0001	M3	3.1 mm	5.6 mm	1 mm	Gray	Split Lock	Spring Steel	Zinc Plated	£3.02	100
A	L37060.100.0001	M10	10.2 mm	18.1 mm	2.2 mm	Silver	Split Lock	Spring Steel	Zinc Plated	£593.61	4000
A	M37020.110.0001	M11	11.2 mm	18.2 mm	2.2 mm	Gray	Split Lock	Spring Steel	Zinc Plated	£18.61	1
B	M37220.140.0001	M14	14.2 mm	21.1 mm	3 mm	Gray	Split Lock	Spring Steel	Zinc Plated	£4.31	25
A	L37060.160.0001	M16	16.2 mm	27.4 mm	3.5 mm	Silver	Split Lock	Spring Steel	Zinc Plated	£641.49	1150
B	M37220.220.0001	M22	22.5 mm	32.9 mm	4.5 mm	Gray	Split Lock	Spring Steel	Zinc Plated	£13.40	1
B	M37220.240.0001	M24	24.5 mm	35.9 mm	5 mm	Gray	Split Lock	Spring Steel	Zinc Plated	£8.70	1
A	M37020.270.0001	M27	27.5 mm	43 mm	5 mm	Gray	Split Lock	Spring Steel	Zinc Plated	£14.06	10
A	M37020.330.0001	M33	33.5 mm	55.2 mm	6 mm	Gray	Split Lock	Spring Steel	Zinc Plated	£3.83	2

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Plain Phosphor Bronze Internal Tooth Lock Washers

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Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Hardness	Thickness	Thickness Tolerance	Class	Price (inc. VAT)	Pkg. Qty.
A	U50462.008.0001	#2	0.095"	1/5"	Rockwell B90	0.015"	0.01" to 0.016"	Not Applicable	£4.68	1
B	B50462.037.0001	#2	0.384"	0.67"	-	0.032"	-	-	£7,147.82	13150
C	B50462.008.0001	#2	0.089"	0.172"	-	0.01"	-	-	£5,670.45	90000
D	B50462.011.0001	#3	0.115"	0.245"	-	0.012"	-	-	£7,765.06	90000
E	B50462.050.0001	#3	0.512"	0.867"	-	0.037"	-	-	£7,747.12	6750
F	U50462.011.0001	#4	0.123"	0.27"	Rockwell B90	0.018"	0.012" to 0.018"	Not Applicable	£9.59	1
G	B50462.013.0001	#4	0.141"	0.275"	-	0.016"	-	-	£8,557.32	90000
H	B50462.016.0001	#6	0.168"	0.325"	-	0.018"	-	-	£5,058.83	50000
I	U50462.013.0001	#6	0.15"	0.295"	Rockwell B90	0.02"	0.016" to 0.022"	Not Applicable	£8.86	1
J	U50462.016.0001	#8	0.176"	0.34"	Rockwell B90	0.023"	0.018" to 0.023"	Not Applicable	£9.10	1
K	B50462.019.0001	#8	0.195"	0.365"	-	0.018"	-	-	£10,457.32	50000
L	U50462.019.0001	#10	0.204"	0.381"	Rockwell B90	0.024"	0.018" to 0.024"	Not Applicable	£21.83	1
M	B50462.031.0001	#12	8/25"	0.594"	-	0.028"	-	-	£10,755.14	17200
N	U50462.050.0001	1/2"	0.53"	0.9"	Rockwell B90	0.045"	0.037" to 0.045"	Not Applicable	£21.73	1
O	B50462.025.0001	1/4"	0.256"	0.46"	-	0.023"	-	-	£7,690.11	37000
P	U50462.025.0001	1/4"	0.256"	0.46"	Rockwell B90	0.023"	0.023" to 0.028"	Not Applicable	£24.44	1
Q	U50462.037.0001	3/8"	0.398"	0.692"	Rockwell B90	1/25"	0.032" to 0.04"	Not Applicable	£32.20	1
R	U50462.031.0001	5/16"	8/25"	0.594"	Rockwell C50	0.028"	-	Not Applicable	£78.76	1

-

Plain Silicon Bronze Split Lock Washers

A

B

C

D

E

F

G

H

I

J

K

L

Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Thickness	Thickness Tolerance	Class	Hardness	Price (inc. VAT)	Pkg. Qty.
A	B43150.025.0001	#4	0.252"	0.487"	1/16"	-	-	-	£2,672.34	9300
B	1NU87	#4	3/25"	0.209"	0.025"	+0.025"	Not Applicable	Rockwell B90	£5.89	1
C	U43150.013.0001	#6	0.141"	1/4"	0.031"	Not Rated	-	Rockwell B90	£15.03	1
D	B43150.037.0001	#6	0.377"	17/25"	3/32"	-	-	-	£2,243.80	3400
E	1NU88	#6	0.148"	1/4"	0.031"	+0.031"	Not Applicable	Rockwell B90	£8.92	100
F	B43150.050.0001	#8	0.502"	0.869"	1/8"	-	-	-	£4,070.57	1650
G	B43150.019.0001	#8	0.193"	0.334"	0.047"	-	-	-	£5,880.20	30300
C	U43150.016.0001	#8	0.167"	0.293"	1/25"	-	-	Rockwell B90	£30.27	1
H	B43150.021.0001	#10	0.22"	0.377"	0.056"	-	-	-	£7,277.80	16600
I	U43150.019.0001	#10	0.193"	0.334"	0.047"	-	Not Applicable	Rockwell B90	£48.16	100
J	B43150.062.0001	#10	0.628"	1.073"	0.156"	-	-	-	£4,461.03	900
C	U43150.021.0001	#12	0.22"	0.377"	0.056"	-	Not Applicable	Rockwell B90	£43.93	100
C	U43150.050.0001	1/2"	0.502"	0.869"	1/8"	-	Not Applicable	Rockwell B90	£53.39	1
C	U43150.025.0001	1/4"	0.252"	0.487"	1/16"	-	Not Applicable	Rockwell B90	£85.30	1
K	U43150.037.0001	3/8"	0.377"	17/25"	3/32"	-	Not Applicable	Rockwell B90	£88.27	1
C	U43150.062.0001	5/8"	0.628"	1.073"	0.156"	-	Not Applicable	Rockwell B90	£61.88	1
L	U43150.075.0001	5/8"	0.766"	1.265"	0.156"	+0.188"	Not Applicable	Rockwell B90	£45.84	1
C	U43150.031.0001	5/16"	0.314"	0.583"	0.0781"	-	-	Rockwell B90	£111.53	1

APPROVED VENDOR -

Grade 2 Steel Split Lock Washers

A

B

Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Hardness	Thickness	Class	Color	Price (inc. VAT)
A	U37060.125.0001	1 1/4"	1.254"	2.036"	Rockwell C38	0.312"	Not Applicable	Silver	£8.96
B	U37025.031.0001	5/16"	0.322"	0.583"	Rockwell C38-C46	0.0781"	Not Applicable	-	£7.24

-

Galvanized Steel Split Lock Washers

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Hardness	Thickness	Class	Type	Material	Price (inc. VAT)	Pkg. Qty.
A	B37025.043.0001	#4	11/25"	0.77"	-	0.109"	-	Split Lock	Steel	£314.82	2325
B	B37025.150.0001	#4	1.504"	2.419"	-	3/8"	-	Split Lock	Steel	£338.82	75
C	B37025.175.0001	#6	1.758"	2.679"	-	0.389"	-	Split Lock	Steel	£474.05	65
D	B37025.112.0001	#8	1.129"	1.847"	-	0.281"	-	Split Lock	Steel	£376.66	175
E	B37025.200.0001	#8	2.008"	2.936"	-	0.422"	-	Split Lock	Steel	£476.76	45
F	B37025.250.0001	#10	2.512"	3.471"	-	11/25"	-	Split Lock	Steel	£403.95	30
G	B37025.125.0001	#10	1.254"	2.036"	-	0.312"	-	Split Lock	Steel	-	130	RFQ
H	B37025.137.0001	#12	1.379"	2.219"	-	0.344"	-	Split Lock	Steel	£531.62	100
I	B37025.087.0001	#12	0.878"	1.459"	-	0.219"	-	Split Lock	Steel	£262.28	350
J	U37025.125.0001	1 1/4"	1.254"	2.036"	Rockwell C40-C50	0.312"	Not Applicable	Split Lock	Steel	£17.22	1
K	U37025.112.0001	1 1/8"	1.129"	1.847"	Rockwell C38-C46	0.281"	Not Applicable	Split Lock	Steel	£25.55	1
L	U37025.100.0001	1"	1.003"	1.656"	Rockwell C38-C46	1/4"	Not Applicable	Split Lock	Steel	£6.14	1
M	U37025.050.0001	1/2"	0.502"	0.869"	Rockwell C38-C46	1/8"	Not Applicable	Split Lock	Steel	£4.57	1
N	U37025.025.0001	1/4"	0.26"	0.487"	Rockwell C35	1/16"	Not Applicable	Split Lock	Steel	£3.89	100
O	U37025.075.0001	3/4"	0.753"	1.265"	Rockwell C32	3/16"	Not Applicable	Split Lock	Steel	£5.23	1
P	U37025.037.0001	3/8"	0.377"	17/25"	Rockwell C35	3/32"	Not Applicable	Split Lock	Steel	£5.27	1
Q	U37025.062.0001	5/8"	0.628"	1.073"	Rockwell C38-C46	0.156"	Not Applicable	Split Lock	Steel	£3.54	1
R	U37025.087.0001	7/8"	0.878"	1.459"	Rockwell C38-C46	0.219"	Not Applicable	Split Lock	Steel	£4.64	1

-

Zinc Plated Steel Internal Tooth Lock Washers

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

T

U

V

Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Hardness	Thickness	Thickness Tolerance	Class	Color	Price (inc. VAT)	Pkg. Qty.
A	B37480.008.0001	#2	0.089"	0.172"	-	0.01"	-	-	-	£1,676.36	90000
B	B37321.025.0001	#2	0.256"	1/2"	-	0.035"	-	-	-	£13,125.50	37000
C	U37480.008.0001	#2	0.095"	1/5"	Rockwell C40-C50	0.016"	-	Not Applicable	-	£1.75	100
D	B37321.031.0001	#3	8/25"	0.59"	-	1/25"	-	-	-	£5,596.46	17200
E	B37480.011.0001	#4	0.115"	0.245"	-	0.012"	-	-	-	£820.22	90000
F	B37480.087.0001	#4	0.894"	1.364"	Rockwell C38-C46	0.052"	0.052" to 0.06"	-	-	£1,416.07	2500
G	6DZC6	#4	0.123"	0.27"	Rockwell C40-C50	0.018"	-0.006"	Not Applicable	-	£4.06	1
H	U37480.011.0001	#4	0.123"	0.27"	Rockwell C40-C50	0.018"	-	Not Applicable	-	£1.34	1
I	B37480.050.0001	#4	0.512"	0.867"	-	0.037"	-	-	-	£1,007.48	6750
J	B37321.037.0001	#4	0.384"	0.7"	-	0.042"	-	-	-	£10,004.03	13150
K	B37480.013.0001	#6	0.141"	0.275"	-	0.016"	-	-	-	£1,011.93	90000
L	B37480.056.0001	#6	0.576"	0.957"	Rockwell C38-C46	0.037"	0.037" to 0.045"	-	-	£1,026.73	5550
M	U37480.013.0001	#6	0.15"	0.295"	Rockwell C40-C50	0.022"	-	Not Applicable	-	£1.51	1
N	B37321.050.0001	#6	0.512"	22/25"	-	0.055"	-	-	-	£9,420.24	6750
O	B37480.025.0001	#6	0.256"	0.46"	Rockwell C40-C50	0.023"	0.023" to 0.028"	-	-	£869.03	37000
G	6DZC7	#6	0.15"	0.295"	Rockwell C40-C50	0.022"	-0.006"	Not Applicable	-	£4.24	100
G	6DZC8	#8	0.176"	0.34"	Rockwell C40-C50	0.023"	-0.006"	Not Applicable	-	£6.60	100
P	B37480.031.0001	#8	8/25"	0.594"	-	0.028"	-	-	-	£582.50	17200
Q	U37480.016.0001	#8	0.176"	0.34"	Rockwell C40-C50	0.023"	-	Not Applicable	-	£1.60	1
R	B37480.062.0001	#8	16/25"	1.045"	-	0.042"	-	-	-	£879.14	5000
S	B37480.016.0001	#8	0.168"	0.325"	-	0.018"	-	-	-	£518.90	50000
T	B37321.062.0001	#8	16/25"	1.1"	-	0.059"	-	-	-	£9,577.97	5000
G	6DZC9	#10	10.5 mm	17.57 mm	Rockwell C40-C50	0.89 mm	-0.006"	Not Applicable	-	£6.52	100
U	B37480.100.0001	#10	1.019"	1.59"	Rockwell C38-C46	0.059"	0.059" to 0.067"	-	-	£1,452.90	1610
V	B37480.037.0001	#10	0.384"	0.67"	-	0.032"	-	-	-	£886.94	13150

-

Yellow Zinc Plated Steel Split Lock Washers

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Hardness	Thickness	Color	Class	Price (inc. VAT)	Pkg. Qty.
A	B37060.137.0001	#2	1.379"	2.219"	-	0.344"	-	-	£1,172.44	100
B	B37060.150.0001	#3	1.504"	2.419"	-	3/8"	-	-	£857.46	75
C	B37060.175.0001	#5	1.758"	2.679"	-	0.389"	-	-	£640.89	65
D	U37060.150.0001	1 1/2"	1.504"	2.419"	Rockwell C40-C50	3/8"	-	Not Applicable	£55.36	1
E	U37060.112.0001	1 1/8"	1.129"	1.847"	Rockwell C46	0.281"	Yellow	Not Applicable	£7.04	1
F	U37060.175.0001	1 3/4"	1.758"	2.679"	Rockwell C40-C50	0.389"	Yellow	Not Applicable	£33.80	5
G	U37060.137.0001	1 3/8"	1.379"	2.219"	Rockwell C40-C50	0.344"	-	Not Applicable	£60.34	1
H	U37060.100.0001	1"	1.003"	1.656"	Rockwell C38-C46	1/4"	Yellow	Not Applicable	£5.32	1
I	U37060.050.0001	1/2"	0.502"	0.869"	Rockwell C38-C46	1/8"	Yellow	Not Applicable	£4.40	1
J	U37060.025.0001	1/4"	0.26"	0.487"	Rockwell C38-C46	1/16"	Yellow	Not Applicable	£3.14	1
K	U37060.200.0001	2"	2.008"	2.936"	Rockwell C46	0.422"	Yellow	Not Applicable	£26.52	1
L	U37060.075.0001	3/4"	0.753"	1.265"	Rockwell C38-C46	3/16"	Yellow	Not Applicable	£5.02	1
M	U37060.037.0001	3/8"	0.377"	17/25"	Rockwell C38-C46	3/32"	Yellow	Not Applicable	£3.68	1
N	4VPG1	5/8"	0.628"	1.073"	Rockwell C38-C46	0.156"	Black	Not Applicable	£359.45	2
O	U37060.062.0001	5/8"	0.628"	1.073"	Rockwell C38-C46	0.156"	Yellow	Not Applicable	£3.14	1
P	U37060.031.0001	5/16"	0.322"	0.583"	Rockwell C38-C46	0.0781"	Yellow	Not Applicable	£4.48	1
Q	U37060.087.0001	7/8"	0.878"	1.459"	Rockwell C38-C46	0.219"	-	Not Applicable	£3.90	1
R	U37060.043.0001	7/16"	11/25"	0.77"	Rockwell C38-C46	0.109"	Yellow	Not Applicable	£3.36	1
S	U37060.056.0001	9/16"	0.564"	0.965"	Rockwell C38-C46	0.141"	Yellow	Not Applicable	£5.84	1

-

Plain Grade 316 Stainless Steel Split Lock Washers

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

T

U

V

Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Thickness	Thickness Tolerance	Class	Hardness	Thread Direction	Price (inc. VAT)	Pkg. Qty.
A	U55450.008.0001	#2	0.088"	0.172"	0.02"	-	Not Applicable	-	-	£1.42	1
B	U55450.011.0001	#4	0.114"	0.209"	0.025"	0.025"	Not Applicable	-	-	£5.34	1
C	U55450.013.0001	#6	0.141"	1/4"	0.031"	0.031"	Not Applicable	-	-	£5.08	1
D	U55450.016.0001	#8	0.174"	0.293"	1/25"	1/25"	Not Applicable	-	-	£6.18	1
E	U55450.019.0001	#10	0.193"	0.334"	0.047"	0.047"	Not Applicable	-	-	£7.14	1
F	U55450.021.0001	#12	0.22"	0.377"	0.056"	-	Not Applicable	-	-	£18.49	1
G	U55450.150.0001	1 1/2"	1.504"	2.419"	3/8"	-	Not Applicable	Rockwell C35	-	£112.54	1
H	U55450.125.0001	1 1/4"	1.254"	2.036"	0.312"	-	Not Applicable	-	-	£64.00	1
I	U55450.112.0001	1 1/8"	1.129"	1.847"	0.281"	-	Not Applicable	-	-	£30.25	1
J	U55450.100.0001	1"	1.003"	1.656"	1/4"	-	Not Applicable	Rockwell C35	-	£26.63	5
K	1NY79	1"	1.024"	1.656"	1/4"	-	Not Applicable	Rockwell C35	-	£30.90	5
L	U55450.050.0001	1/2"	0.502"	0.869"	1/8"	-	Not Applicable	-	-	£7.04	10
M	U55450.025.0001	1/4"	0.252"	0.487"	1/16"	-	Not Applicable	-	-	£4.10	1
N	U55450.075.0001	3/4"	0.753"	1.265"	3/16"	-	Not Applicable	-	-	£6.78	1
O	U55450.037.0001	3/8"	0.377"	17/25"	3/32"	-	Not Applicable	-	-	£14.34	1
P	WSHR,LOCK 3/8 SS6	3/8"	-	-	-	-	-	-	Right Hand	-	1	RFQ
Q	U55450.062.0001	5/8"	0.628"	1.073"	0.156"	-	Not Applicable	-	-	£6.98	1
R	U55450.031.0001	5/16"	0.314"	0.583"	0.0781"	-	Not Applicable	-	-	£10.03	1
S	U55450.087.0001	7/8"	0.878"	1.459"	0.219"	-	Not Applicable	Rockwell C35	-	£16.21	1
T	1NY78	7/8"	0.894"	1.459"	0.219"	-	Not Applicable	Rockwell C35	-	£38.82	10
U	U55450.043.0001	7/16"	11/25"	0.77"	0.109"	-	Not Applicable	-	-	£10.14	1
V	U55450.056.0001	9/16"	0.564"	0.965"	0.141"	-	-	-	-	£29.98	1

FABORY -

Galvanized Spring Steel Split Lock Washers

A

B

C

Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Thickness	Color	Type	Material	Finish	Price (inc. VAT)	Pkg. Qty.
A	M37025.060.0001	M6	6.1 mm	11.8 mm	1.6 mm	Gray	Split Lock	Spring Steel	Galvanized	£10.66	100
A	M37025.080.0001	M8	8.1 mm	14.8 mm	2 mm	Gray	Split Lock	Spring Steel	Galvanized	£15.13	100
B	L37025.080.0001	M8	8.1 mm	14.8 mm	2 mm	Gray	Split Lock	Spring Steel	Galvanized	£741.55	6300
A	M37025.100.0001	M10	10.2 mm	18.1 mm	2.2 mm	Gray	Split Lock	Spring Steel	Galvanized	£75.23	100
A	M37025.120.0001	M12	12.2 mm	21.1 mm	2.5 mm	Gray	Split Lock	Spring Steel	Galvanized	£28.64	100
B	L37025.160.0001	M16	16.2 mm	27.4 mm	3.5 mm	Gray	Split Lock	Spring Steel	Galvanized	£622.75	1150
A	M37025.160.0001	M16	16.2 mm	27.4 mm	3.5 mm	Gray	Split Lock	Spring Steel	Galvanized	£34.16	50
A	M37025.180.0001	M18	18.2 mm	29.4 mm	3.5 mm	Gray	Split Lock	Spring Steel	Galvanized	£51.00	50
A	M37025.200.0001	M20	20.2 mm	33.6 mm	4 mm	Gray	Split Lock	Spring Steel	Galvanized	£54.08	50
A	M37025.220.0001	M22	22.5 mm	35.9 mm	4 mm	Gray	Split Lock	Spring Steel	Galvanized	£54.74	25
A	M37025.240.0001	M24	24.5 mm	40 mm	5 mm	Gray	Split Lock	Spring Steel	Galvanized	£37.37	25
A	M37025.270.0001	M27	27.5 mm	43 mm	5 mm	Gray	Split Lock	Spring Steel	Galvanized	£30.65	10
C	L37025.300.0001	M30	30.5 mm	48.2 mm	6 mm	Gray	Split Lock	Spring Steel	Galvanized	£1,129.88	220
A	M37025.300.0001	M30	30.5 mm	48.2 mm	6 mm	Gray	Split Lock	Spring Steel	Galvanized	£42.83	5

FABORY -

Zinc Plated Spring Steel Curved Split Lock Washers

A

Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Thickness	Color	Type	Material	Finish	Price (inc. VAT)	Pkg. Qty.
A	M37080.050.0001	M5	5.1 mm	9.2 mm	1 mm	Gray	Curved Split Lock	Spring Steel	Zinc Plated	£5.96	1
A	M37080.060.0001	M6	6.1 mm	11.8 mm	1.3 mm	Gray	Curved Split Lock	Spring Steel	Zinc Plated	£8.78	1
A	M37080.080.0001	M8	8.1 mm	14.8 mm	1.6 mm	Gray	Curved Split Lock	Spring Steel	Zinc Plated	£15.50	100
A	M37080.100.0001	M10	10.2 mm	18.1 mm	1.8 mm	Gray	Curved Split Lock	Spring Steel	Zinc Plated	£32.54	100
A	M37080.120.0001	M12	12.2 mm	21.1 mm	2.1 mm	Gray	Curved Split Lock	Spring Steel	Zinc Plated	£32.98	100
A	M37080.160.0001	M16	16.2 mm	27.4 mm	2.8 mm	Gray	Curved Split Lock	Spring Steel	Zinc Plated	£37.31	50
A	M37080.200.0001	M20	20.2 mm	33.6 mm	3.2 mm	Gray	Curved Split Lock	Spring Steel	Zinc Plated	£64.10	50

APPROVED VENDOR -

Plain Grade 316 Stainless Steel External Tooth Lock Washers

A

B

C

D

E

F

Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Hardness	Thickness	Thickness Tolerance	Class	Color	Price (inc. VAT)
A	U55460.009.0001	#3	0.102"	0.23"	Rockwell B85	0.013"	0.01" to 0.016"	Not Applicable	Silver	£35.17
B	U55460.011.0001	#4	0.115"	0.245"	-	0.012"	-	Not Applicable	-	£18.61
C	U55460.012.0001	#5	0.129"	0.27"	-	0.014"	-	Not Applicable	-	£77.71
D	U55460.013.0001	#6	0.141"	0.305"	-	0.016"	-	Not Applicable	-	£95.30
E	U55460.016.0001	#8	0.168"	0.365"	Rockwell B88	0.018"	-0.0025" to +0.0025"	Not Applicable	-	£11.69
F	U55460.019.0001	#10	0.195"	0.395"	Rockwell B88	0.018"	-0.003" to +0.003"	Not Applicable	-	£17.56

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