Nuts-parts free editing modify the name of the item
Category: Industrial products
A nut is a nut, which is screwed together with a bolt or a screw to play a tightening role. An element that all manufacturing machinery must use is divided into carbon steel, stainless steel, non-ferrous metal (such as copper), etc. according to the material Several major types.

Basic Information
Chinese name
Foreign name
Screw nut
Tighten with bolts or screws for tightening
Types of
Carbon steel, stainless steel, non-ferrous metals

National Standard German Standard International Standard Japanese Standard American Standard
Easy to install Integrity without gasket Easy to remove
Carbon steel, stainless steel, copper, alloy, etc.
table of Contents
1 kind
2 The principle of anti-loosening
3 Standard basis
4 lock nut
5 Nut material
6 other nuts
7 Nut specifications
Collapse and edit this paragraph

Nuts are parts that are tightly connected to mechanical equipment. Nuts and bolts of the same specification can be connected together through the inner thread. For example, M4-P0.7 nuts can only be connected with M4-P0.7 series bolts (in the nut In the middle, M4 refers to the inner diameter of the nut is about 4mm, 0.7 refers to the distance between the two thread teeth is 0.7mm); American products are also the same, for example, 1/4-20 nut can only be used with 1/4-20 screw ( (The inner diameter of a 1/4 finger nut is about 0.25 inches, and 20 fingers have 20 teeth per inch).

Folded stainless steel

Self-locking nut, lock nut, lock nut, four-jaw nut,
Screw-in nut safety nut, thin rod screw connection nut, self-locking hexagon cover nut, special anchor screw nut, hexagonal crown-shaped thin nut, and eye nut.

Fine-tooth all-metal hex flange face lock nuts, full-metal all-hex flange face lock nuts, fine-tooth non-metal insert hex flange face lock nuts, fine-tooth hex flange face nuts

Welded square nuts, welded hexagon nuts, fastening nuts, embedded round nuts

Round nut with slot, round nut with hole on side, round nut with hole on end face, small round nut

Round nut, ring nut, butterfly nut

Folded copper

Copper nuts, inlaid copper nuts, knurled copper nuts, embedded copper nuts, injection molded copper nuts, etc.

Folding alloy

Zinc copper alloy nuts, etc.

The principle of anti-loosening

DISC-LOCK lock nut is composed of two parts,
Each part has a staggered cam. Because the internal wedge design slope angle is greater than the bolt nut angle, this combination will be tightly bitten into a whole. When vibration occurs, the raised parts of the DISC-LOCK locknuts are mutually Staggered, it produces lifting tension, so as to achieve a perfect anti-loosening effect.

Folding main features

Easy to install


No washer required

Easy to disassemble

Reusable made of medium carbon steel

Can be used with 8.8, 10.9 and other high-strength bolts

Passed US military-MIL-STD 1312 Vibration Test7. Results test passed Junker Test test

Passed Dynamic Test

Application range of folding

Automotive industry-cars, trucks, buses


Construction machinery

Wind power equipment

agricultural machine


Drilling equipment

Shipbuilding industry


Mining equipment

Oil drilling rig (onshore or offshore)

public facilities


Transmission system

Metallurgical equipment

Rock hammer

Post time: Jun-05-2020
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