Made of black oxidized carbon steel, which has the characteristics of good cutting performance, high hardness, good toughness and wear resistance after quenching and tempering treatment.The flat washer is commonly used to distribute loads of threaded bolts, screws, and nuts evenly as the fastener is tightened.Intended for general use under the head of a bolt or nut across the area of the support in order to provide a smooth surface and prevent pull through.Widely used in mechanical industry, automotive, home decoration, electrical maintenance, furniture repair, shop and outdoor construction, and threaded bolt connections. Specification:Material: Carbon SteelFinish: Black OxidizedFits Screw/Bolt Size: M16Total Size: 16 x 41 x 7mm / 0.63" x 1.61" x 0.28"(Inner Dia*Outer Dia*T)Package Content: 1 x Flat Washer
