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Haiyan Hager Fastener Co., Ltd. 86-138-5732-1711
Metric Heavy Hex Lock Nut

Metric Heavy Hex Lock Nut

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    Metric Heavy Hex Lock Nut


    SS 316 Heavy Hex Lock Nut


    SS 316 Hex Flange Nuts

  • Materials
    SS 304 / SS 316 Class 1 & Class 2
  • Diameter
    1/2"-13 ~ 3-1/2"-8
  • Thread
  • Grade
    8 8M
  • Coating
  • Length
  • Marking
    8+logo 8M+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

Metric Heavy Hex Lock Nut

Stud Bolt ASTM A193 Grade B8 B8M "Thread to Thread" Class 2A




Anodic oxidation and chemical into black oxide black, anodized black to be powered, the ultimate goal is to generate the metal surface oxide film is a dense black, to beautify the appearance, improve corrosion effect.

Hex nuts are six sided general purpose fasteners with internal screw threads.

The most common hexagonal fastener with internal threads that screws on to the shank of a bolt or a hex cap screw.

Hex nuts (Hexagon nut) with bolts, screws with the use of the connecting mechanical fastening effect. 1 of the most widely used type hexagon nuts, C-level nut for rough surface, on to less precision machinery, equipment or structures; A and B grade nuts for relatively smooth surface of high precision machine , equipment or structure. Type 2 hex nut thickness m thick, used often require frequent disassembly occasions. Hexagon thin nut m thickness thinner, used to be connected to parts of the surface of the space-constrained applications.



In normal use, a nut-and-bolt joint holds together because the bolt is under a constant tensile stress called the preload. The preload pulls the nut threads against the bolt threads, and the nut face against the bearing surface, with a constant force, so that the nut cannot rotate without overcoming the friction between these surfaces. If the joint is subjected to vibration, however, the preload increases and decreases with each cycle of movement. If the minimum preload during the vibration cycle is not enough to hold the nut firmly in contact with the bolt and the bearing surface, then the nut is likely to become loose.


1.StainlessSteel:SS 304 / SS 316 Class 1 & Class 2
2.Carbon Steel: 1010,1035,1045, C45(K1045), C46(K1046),C20
B8  8M
Plain, Zinc Plated(Clear/Blue/Yellow/Black), Black oxide, Nickel, Chrome, H.D.G and etc.
ISO, GB, BS, DIN, ANSI,JIS, Non-standard
Sample Service
Samples are all in free.
ISO9001,CE, BV,3.1.B
1. Competitive price; 2. OEM service available
Bulk in cartons (25kg Max.)+wood Pallet or according to customer special demand
Payment terms
FOB, CIF, CFR, L/C, or others.
Delivery method
by sea, by air or by express service
Structural Steel; Metal Buliding; Oil&Gas; Tower&Pole; Wind Energy; Mechanical Machine; Automobile: Home Decorating and etc.