Special Design for 40mm Square Washers - DIN125 Flat gasket/washer, DIN125 – Tiancong

The Role of Flat Pad

1. Increase the contact area between the screw and the machine.
2. Eliminate the damage to the machine surface of the spring pad when unloading the screws. The use must be a spring pad and a flat pad, the flat pad next to the machine surface, the spring pad between the flat pad and the nut.
Standard of flat pad:
Standards vary from one country to another.

Product Material

1) Steel hardness grade 140HV, hardness HV140-250; hardness grade 200HV, hardness HV200-250
2) stainless steel hardness grade 140HV, hardness HV140-250; hardness grade, hardness grade 200HV, HV200-250; stainless steel group A2 and A4, F1, C1 and C4
3) According to the agreement, gaskets can be made of non-ferrous metal or other materials
4) h no more than 0.5 mm, hardness grade is HV 2, h over 0.5 mm, hardness grade HV 10. (See the original technical conditions)

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