Flange Bolts

The is an integral bolt composed of a hexagon head, a flange, and a screw.

According to the different positions of the , the size requirements of the flange are different, and there are flat bottom and toothed ones, and the toothed ones play an anti-skid role. High-strength flange bolts have the advantages of being able to withstand higher preload, good anti-loosening performance, precise decoration, and strong durability.

Flange bolts are widely used in engines, heavy machinery, roads, railways, bridges, and other fields.

Specification of Flange Bolts

Thread specification range (mm)

M16-M90

Maximum processing length (mm)

≤1500mm

Strength Range

≤1450MPa

Geometric Tolerance

The verticality of the supporting surface relative to the thread is ≤0.02mm

Friction Coefficient

μtot, μb, μth

Surface Treatment

Black oxide, Phosphating, Flake zinc-aluminum coating (Dacromet, Geomet), HDG (Hot dip galvanizing), Electro galvanizing, Mechanical galvanizing, Copper plating, Teflon, Special coating for marine engine parts, etc.

Standard Specifications

​All items are produced in strict accordance with industry standards or client-specific requirements.

If you are looking for a reliable , please contact us.

, established in 1994, is a modern China fastener factory. Our factory covers an area of 80000+ square meters and is located in Jinan Economic Development Zone, Shandong Province, China. It is 350 kilometers away from Qingdao Port, and the transportation is very convenient. We are the member of APQP4WIND. JNZC is a technology-based manufacturing enterprise integrating domestic and foreign trade and is committed to providing reliable machined parts & fastener solutions for global industries.