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Countersunk washers are used with oval and flat head screws to provide a bearing surface and sealing functionality. Raptor Supplies offers a wide range of countersunk washers from brands...Read more
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E| Style | Model | For Screw Size | Overall Height | Outside Dia. | Color | Countersink Angle | Height Tolerance | Temp. Range | Price (inc. VAT) | Pkg. Qty. | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | 11SFW0006B | #6 | 0.1" | 7/16" | Black | 82° | -0.005" to +0.005" | -40°F | £8.06 | 20 | |
| B | 11SFW0008B | #8 | 0.115" | 33/64" | Black | 82° | -0.005" to +0.005" | -40°F | £21.52 | 20 | |
| C | 11SFW0008 | #8 | 0.115" | 33/64" | Natural | 82° | -0.005" to +0.005" | -40°F | £7.26 | 20 | |
| D | 11SFW0010 | #10 | 0.152" | 37/64" | Natural | 82° | -0.005" to +0.005" | -40°F | £8.53 | 20 | |
| E | 11SFW0012 | #12 | 4/25" | 39/64" | Natural | 82° | -0.005" to +0.005" | -40°F | £22.32 | 20 |
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B| Style | Model | For Screw Size | Outside Dia. | Overall Height | Countersink Angle | Height Tolerance | Hardness | Color | Tensile Strength | Price (inc. VAT) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | ZPYR#10625-316 | #10 | 5/8" | 1/8" | 82° | -0.01" to +0.01" | Rockwell B85-B95 | Silver | 75000 psi | £11.16 | |
| B | ZPYR14750-316 | 1/4" | 3/4" | 1/8" | 82° | -0.01" to +0.01" | Rockwell B85-B95 | Silver | 75000 psi | £11.99 |
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P| Style | Model | For Screw Size | Overall Height | Outside Dia. | Countersink Angle | Height Tolerance | Hardness | Color | Tensile Strength | Price (inc. VAT) | Pkg. Qty. | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | U51350.013.0001 | #6 | 0.078" | 29/64" | 82° | +0.043" | Rockwell B70 | Silver | - | £10.58 | 1 | |
| B | U51350.016.0001 | #8 | 3/32" | 33/64" | 82° | +0.038" | Rockwell B70 | Silver | - | £10.73 | 1 | |
| C | Z9931SS | #8 | 1/8" | 1" | 82° | -0.01" to +0.01" | Rockwell B85-B95 | - | 90000 psi | £16.09 | 1 | |
| D | Z9930SS | #8 | 1/8" | 3/4" | 82° | -0.01" to +0.01" | Rockwell B85-B95 | - | 90000 psi | £11.95 | 1 | |
| E | Z9933SS | #10 | 0.14" | 1 1/8" | 82° | -0.01" to +0.01" | Rockwell B85-B95 | - | 90000 psi | £29.47 | 1 | |
| F | Z9934SS | #10 | 0.14" | 1 1/4" | 82° | -0.01" to +0.01" | Rockwell B85-B95 | - | 90000 psi | £25.46 | 1 | |
| G | U51350.019.0001 | #10 | 0.109" | 19/32" | 82° | +0.05" | Rockwell B70 | Silver | - | £14.21 | 1 | |
| H | Z9932SS | #10 | 0.14" | 13/16" | 82° | -0.01" to +0.01" | Rockwell B85-B95 | - | 90000 psi | £17.88 | 1 | |
| I | U51350.021.0001 | #12 | 0.265" | 11/16" | 82° | -0.139" | Rockwell B70 | Silver | - | £18.43 | 1 | |
| J | Z9939SS | 1/4" | 0.281" | 2" | 82° | -0.01" to +0.01" | Rockwell B85-B95 | - | 90000 psi | £93.66 | 1 | |
| K | Z9937SS | 1/4" | 0.281" | 1 1/2" | 82° | -0.01" to +0.01" | Rockwell B85-B95 | - | 90000 psi | £40.74 | 1 | |
| L | Z9936SS | 1/4" | 0.281" | 1 3/8" | 82° | -0.01" to +0.01" | Rockwell B85-B95 | - | 90000 psi | £41.72 | 1 | |
| M | Z9935SS | 1/4" | 0.281" | 1 1/4" | 82° | -0.01" to +0.01" | Rockwell B85-B95 | - | 90000 psi | £29.41 | 1 | |
| N | Z9938SS | 1/4" | 0.281" | 1 3/4" | 82° | -0.01" to +0.01" | Rockwell B85-B95 | - | 90000 psi | £59.21 | 1 | |
| O | U51350.025.0001 | 1/4" | 0.156" | 25/32" | 82° | -0.005" to +0.014" | Rockwell B70 | Silver | - | £22.87 | 1 | |
| P | FINWX00300-010P1 | M3 | 1.8 mm | 10 mm | 90° | - | - | - | - | £13.20 | 10 | |
| P | FINWX00400-010P1 | M4 | 2.3 mm | 14 mm | 90° | - | - | - | - | £17.16 | 10 | |
| P | FINWX00500-005P1 | M5 | 2.8 mm | 16 mm | 90° | - | - | - | - | £25.36 | 5 | |
| P | FINWX00600-005P1 | M6 | 3.3 mm | 18 mm | 90° | - | - | - | - | £11.99 | 5 |
A| Style | Model | For Screw Size | Overall Height | Outside Dia. | Countersink Angle | Height Tolerance | Hardness | Color | Price (inc. VAT) | Pkg. Qty. | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | Z9930 | #8 | 1/8" | 3/4" | 82° | -0.01" to +0.01" | Rockwell C40 | Black | £26.82 | 5 | |
| A | Z9931 | #8 | 1/8" | 1" | 82° | -0.01" to +0.01" | Rockwell C40 | Black | £33.36 | 5 | |
| A | Z9932 | #10 | 0.14" | 13/16" | 82° | -0.01" to +0.01" | Rockwell C40 | Black | £38.94 | 5 | |
| A | Z9934 | #10 | 0.14" | 1 1/4" | 82° | -0.01" to +0.01" | Rockwell C40 | Black | £11.60 | 1 | |
| A | Z9933 | #10 | 0.14" | 1 1/8" | 82° | -0.01" to +0.01" | Rockwell C40 | Black | £10.15 | 1 | |
| A | Z9936 | 1/4" | 0.281" | 1 3/8" | 82° | -0.01" to +0.01" | Rockwell C40 | Black | £13.70 | 1 | |
| A | Z9935 | 1/4" | 0.281" | 1 1/4" | 82° | -0.01" to +0.01" | Rockwell C40 | Black | £11.99 | 1 | |
| A | Z9937 | 1/4" | 0.281" | 1 1/2" | 82° | -0.01" to +0.01" | Rockwell C40 | Black | £13.42 | 1 | |
| A | Z9939 | 1/4" | 0.281" | 2" | 82° | -0.01" to +0.01" | Rockwell C40 | Black | £38.48 | 1 | |
| A | Z9938 | 1/4" | 0.281" | 1 3/4" | 82° | -0.01" to +0.01" | Rockwell C40 | Black | £18.56 | 1 | |
| A | Z9921 | M4 | 3 mm | 20 mm | 90° | -0.3 mm to +0.3 mm | Rockwell C40 | Black | £25.19 | 5 | |
| A | Z9920 | M4 | 3 mm | 16 mm | 90° | -0.3 mm to +0.3 mm | Rockwell C40 | Black | £24.66 | 5 | |
| A | Z9922 | M5 | 3.5 mm | 22 mm | 90° | -0.3 mm to +0.3 mm | Rockwell C40 | Black | £34.36 | 5 | |
| A | Z9923 | M5 | 3.5 mm | 25 mm | 90° | -0.3 mm to +0.3 mm | Rockwell C40 | Black | £48.56 | 5 | |
| A | Z9924 | M5 | 3.5 mm | 28 mm | 90° | -0.3 mm to +0.3 mm | Rockwell C40 | Black | £8.83 | 1 | |
| A | Z9925 | M6 | 4 mm | 32 mm | 90° | -0.3 mm to +0.3 mm | Rockwell C40 | Black | £13.87 | 1 | |
| A | Z9926 | M6 | 4 mm | 36 mm | 90° | -0.3 mm to +0.3 mm | Rockwell C40 | Black | £14.47 | 1 | |
| A | Z9928 | M6 | 6 mm | 45 mm | 90° | -0.3 mm to +0.3 mm | Rockwell C40 | Black | £20.15 | 1 | |
| A | Z9929 | M6 | 6 mm | 52 mm | 90° | -0.3 mm to +0.3 mm | Rockwell C40 | Black | £29.77 | 1 | |
| A | Z9927 | M6 | 5 mm | 40 mm | 90° | -0.3 mm to +0.3 mm | Rockwell C40 | Black | £16.44 | 1 |
| Model | Item | Price (inc. VAT) | Pkg. Qty. | |
|---|---|---|---|---|
| FINWIS0-85-100P | AB9HNJ | £9.75 | 1 |
Countersunk washers are used with oval and flat head screws to provide a bearing surface and sealing functionality. Raptor Supplies offers a wide range of countersunk washers from brands like Grainger and Micro-Plastics. These washers work similar to flat washers, but feature a bearing surface for flat head screws.
These washers feature teeth that firmly grip heads of 82-degree flat head countersunk screws, preventing joints from loosening due to vibration.
The teeth on these washers bite deeper into the screw head & joint than normal external-tooth lock washers. They provide a solid hold, preventing 90-degree countersunk screws from loosening due to vibrations.