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Countersunk Tight-Grip External-Tooth Lock Washers
To keep 90° countersunk screws from loosening in vibration applications, the teeth on these washers bite further into the screw head and joint than standard external-tooth lock washers for a more secure hold. Made of zinc-plated steel, these washers resist corrosion in wet environments. All meet DIN dimensional standards.
For technical drawings and 3-D models, click on a part number.
For Screw Size | ID, mm | OD, mm | Thickness, mm | Countersink Angle | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | |||||||||
---|---|---|---|---|---|---|---|---|---|
M3 | 3.2 | 6.0 | 0.15-0.25 | 90° | Rockwell C35 | DIN 6798 | 100 | 00000000 | 000000 |
M4 | 4.3 | 8.0 | 0.20-0.30 | 90° | Rockwell C35 | DIN 6798 | 100 | 00000000 | 00000 |
M5 | 5.3 | 9.8 | 0.25-0.35 | 90° | Rockwell C35 | DIN 6798 | 50 | 00000000 | 00000 |
M6 | 6.4 | 11.8 | 0.35-0.45 | 90° | Rockwell C35 | DIN 6798 | 50 | 00000000 | 0000 |
M8 | 8.4 | 15.3 | 0.35-0.45 | 90° | Rockwell C35 | DIN 6798 | 50 | 00000000 | 00000 |
M10 | 10.5 | 19.0 | 0.45-0.55 | 90° | Rockwell C35 | DIN 6798 | 25 | 00000000 | 0000 |
M12 | 13.0 | 23.0 | 0.45-0.55 | 90° | Rockwell C35 | DIN 6798 | 25 | 00000000 | 00000 |