Min. Order Reference FOB Price
1000 Pieces US$0.06 / Piece
Product Description
Stainless Steel FAST JISB1251 Spring Washer For Screws Bolts Lock: The spring washer can prevent loosening and increase the preload, while the flat washer does not have this function. It can be used to increase the fastening contact area, prevent the friction between the bolt and the workpiece, ...