Feature

●Material : 合金鋼
●Brand : uxcell
●Product Name: Star Lock Washer; Material: Metal
●Weight: 0.8 oz (24 g); Package Content: 30 x Star Lock Washers
●Thickness: 0.02 inch (0.5 mm); Fastener Type: Inner tooth washer
●Shaft Diameter: 0.4 inches (10 mm), Outer Diameter: 0.8 inches (20 mm)
●Color: Black


Description

Description:
The lock washer creates a spring force between the fastener head and the substrate, holding the washer firmly against the substrate, keeping the bolt thread strong against the nut or substrate thread, producing greater friction and rotational resistance.
These washers create permanent installation and are secured to plastic, steel, etc.