Detail & Specs
Metric Split Lock Washer / Black Stainless Steel DIN 127B
Split lock washers exert a spring force between the head of the fastener and the parent material, increasing friction and providing resistance against rotation / loosening from vibration.
DIN 127-B lock washers have square ends.
Material: Stainless Steel
Suitable for damp locations
Finish: Black Oxide
Attractive matte black finish
Abrasion resistant, does not peel, chip or rub off
Reduces friction, prevents galling
Does not change the strength of the stainless steel
Practically no dimensional change to base fastener
The black oxide coating per MIL-DTL-13924, Class 4 on 300 series corrosion resistant steel will show no signs of corrosion after 96 hours of exposure in a 5% salt spray (fog) test in accordance with ASTM B117.
For any application involving marine (salt water), use A4 / 316 Stainless Steel washers.
Also known as general use spring lock metric washer, helical shape washer. Not to be used with reverse thread (left hand) fasteners.