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DIN 127-A - Spring lock washers with tang ends, Form A
Withdrawn split spring lock washers, Form A, with the ends bent up into tangs, while DIN 127-B has the split cut straight across and flat ends. Covers metric thread sizes M3 to M100.
Outdated standard
DIN 127-B - Spring lock washers with square ends, Form B
Withdrawn split spring lock washers with square ends, Form B: the split is cut straight across and the ends are not bent up, unlike DIN 127-A. Rectangular section, unlike the square section of DIN 7980. Covers metric thread sizes M2 to M100.
Outdated standard
DIN 7980 - Spring lock washers with square ends for cheese head screws
Withdrawn split spring lock washers with square ends and a square section, with a smaller outside diameter than DIN 127, for cheese head screws. Covers metric thread sizes M3 to M30.
Outdated standard