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Zinc Coating Hexagonal Headed Nut

Zinc Coating Hexagonal Headed Nut

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    Zinc Coating Hexagonal Headed Nut


    Zinc Coating Hex Head Nuts


    ASTM A320 Hexagonal Headed Nut

  • Materials
    4140 /Hot Rolled/40CrMo/42CrMo/C1035/C1045
  • Diameter
    1/2"-13 ~ 4"-8
  • Thread
  • Grade
    L7 -16
  • Coating
    Plain/ Black/ Zinc/ Hdg/ PTFE
  • Length
  • Marking
    L7-16+logo 2H+logo
  • Place of Origin
  • Brand Name
  • Certification
  • Model Number
  • Minimum Order Quantity
  • Price
  • Packaging Details
  • Delivery Time
    15-30 Days
  • Payment Terms
    L/C, D/A, D/P, T/T, Western Union, MoneyGram
  • Supply Ability
    5000 tons per Month

Zinc Coating Hexagonal Headed Nut

Stud bolt ASTM A320 L7 -16 "Thread to Thread" Class 2A c/w 2 Heavy Hex Nut ASTM A194 Gr.7L Class 2B




Hex Head Nut play the role of a component of all manufacturing machinery. It fastener other components. There are kinds of nut. We have common national standard, German standard, the British standard, American Standard, the subject of the nut. There are many kinds of lock nut. Hex Head Nut is very common.

Hex nut, according to the nominal thickness, is divided into type I, type II and thin nut. Hex Jam Nut. Above Grade 8 nuts , which is divided into Type 1 and Type II two types.

I type hexagon nuts widest application, a nut is divided into A, B, C three, where A and B grade nuts applied to the surface roughness is small, the high requirements for precision machinery, equipment and structures, and C grade nuts are used for relatively rough surface of the machinery, equipment or structures less precision; type 2 hex nut relatively thick, more often need to be used in assembly and disassembly of the occasion.

Type 1 nut refers nominal nut height m≥0.8D ordinary hex nut, of the type size should be consistent with the provisions of GB / T6170's;

The height of type 2 than type 1 nut to nut, of the type size should be consistent with GB / T6175. Increase in type 2 nuts two purposes: First, to obtain a nut without heat treatment by increasing the height, relatively low nut.



The product of 4140 alloy steel shall meet the following chemical composition standards:

C% 0.38-0.48

Si% 0.15-0.35

Mn% 0.70-1.00

P% ≤0.035

S% ≤0.040

Cr% 0.80-1.10

Mo% 0.15-0.25





Item Stud bolt ASTM A320 L7 -16 "Thread to Thread"
size L7 -16
Material Available Stainless Steel: SUS304, SUS316
Surface treatment Passivate, Chrome plated, Electro plating, Black, Plain
Heat treatment Tempering, Hardening, Spheroidizing
Tolerance 6g
Packing Plastic bags + carton box + pallet
Lead time About 15-25 days. Reality time is according to customer's requirement
Address Jiaxing, China