Welcome to Tongna hardware manufacture Co.Ltd.
English
Chinese Japanese

Professional fastener system engineering manufacturer

Ahead of the international advanced management level, to meet the customer satisfaction as the stand

Phone

WetChat

TELEPHONE

0571-86632760

Nut series

The nut series include the nuts, flanges, nuts, cap nuts, nuts, disc nuts, inlay nuts, and other high precision nuts required by the customer.

  • Product
  • Product Parameter

Specification is M2-M20, thickness is 1-50mm. Materials include iron, stainless steel, medium carbon steel, copper and aluminum. The mechanical grades are CLASS-4.8, 6.8, 8.8, 9.8, 10.9, and 12.9. The surface treatment of Trivalent Chromium Color zinc, trivalent chromium blue white trivalent chromium zinc, black zinc, white zinc, nickel chromium green, black nickel, chromium, Dacromet, geomet, tin, blackening treatment etc..