Main products

Hex head bolt

DIN931,DIN933,DIN960,DIN961,ISO4014,ISO4017

Heavy hex bolt

DIN6914,DIN7990,ASTM A325,ASTM A490

Hex nut

DIN934,DIN6915,ASTM A194 2H,ASTM A563

Washer

DIN125,DIN127,DIN6916,ASTM F436

Stud bolt

DIN975,ASTM A193 B7

Standard

DIN, ISO, ANSI, ASME, BS, AS, JIS and non-standards

Application

Building, instrument, automobile, furniture and so on

Grade & Material

Grade 4.8

Q235

Grade 5.8

35K (no heat treatment)

Grade 8.8

D≤M20

35K

M22≤D≤M24

45#

D≥M27

40Cr

Grade 10.9

D≤M24

40Cr

D≥M27

35CoMoA

Grade 12.9

D≤M24

35CoMoA

D≥M27

42CoMoA

Diameter

M6-M100mm Or 1/4"-1-1/2"

Length

20-1000mm Or 3/4"-12"

Production Process

Cold Heading

Cold heading→Heat treatment→Surface treatment

Hot Forging

Cutting→Chamfering(tail)→Hot forging→Chamfering(head)→Polishing→Backspin→Threading rolling→Heat treatment→Surface treatment

Finish

Plain, Black oxidized, Zinc Plated (white, yellow, blue, color...),

Hot Dip Galvanized, Dacromet, Chrome

Packing

25kg per carton, 36 cartons packed in a pallet

or according to your demands

Supply Ability

800 tons per month

Minimum Order

500kgs for each specification

Delivery

15-45 days

Certification

ISO9001-2008 and Ningbo Product Quality Inspection (see below)

Our motto

High quality; Attractive price; Timely delivery; Service upmost