Size:inside diameter:4mm,outside diameter:7.64mm,thickness:0.5mm.
Material:304 stainless steel.
Upward and downward bent projections on respective sides of the split allow the washer to grasp adjoining materials.
Standard size and size Name corresponds to matching screw or bolt size.
These washers perform with a type of spring action created by pressure from a slight spiral or helical form.
Lock Washers help achieve tight assemblies by providing good bolt tension per unit of applied torque, with uniform torque control and even load distribution.
Package Including: 100 * internal tooth lock washer