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serrated washer has internal tooth elastic washer and external tooth elastic washer.
There are many sharp elastic warping teeth on the circumference, which stab and press on the bearing surface to prevent the loosening of fasteners. The internal tooth elastic washer is used under the screw head with small head size; External tooth elastic washers are mostly used under bolt heads and nuts. The elastic washer with teeth is smaller than the ordinary spring washer. The fastener is stressed evenly and reliable to prevent loosening, but it is not suitable for common disassembly. The spring washer can prevent looseness and increase the pre tightening force, but the flat washer does not. It can be used to increase the fastening contact area, prevent the friction between the bolt and the workpiece, and protect the surface of the connector to prevent the surface of the workpiece from being scratched when the bolt and nut are tightened. Materials include stainless steel and carbon steel, size m2--m64, surface blackened, galvanized, hot-dip galvanized, Dacromet, phosphating...
Wuxi Zhuocheng Mechanical Components Co., Ltd. is established in 1990, and one group of manufacturing and selling professional fastener
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