Square pad

Elastic deformation is produced under various loads, so as to effectively tighten and seal the building structure to prevent water leakage, seepage and shock absorption and buffering. Most are used on construction sites. Name square washer with round hole Square Washers Standard DIN 436 BS 3410 CNS 155 JIS B 1256 Size M6～M64 Grade 4.8 8.8 100HV 140HV 200HV 300HV 400HV Material Carbon steel、Stainless steel、355、45#、65Mn Surface black, zinc plated, color zinc, hot dipped galvanized, dacromet Description Elastic deformation is produced under various loads, so as to effectively tighten and seal the building structure to prevent water leakage, seepage and shock absorption and buffering. Most are used on construction sites. Keywords: Square pad