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1278003001-1
M 3 Split Lock Washer, Steel Black Phosphate JIS B 1251

  • DIN 127 B, ISO 7090 Lock washers are designed to be tightened to a required torque beneath an ordinary fastener. They exert a spring tension that keeps the fastener from vibrating loose. They are often attached to the nut side of the fastener.

similar to GB 93

Product Specifications
Screw Dia. M 3
Inside Dia. 3.1mm
Outside Dia. 6.2mm
Thickness .8mm