Flange Nuts

GB6187

GB6187 flange lock nuts conform to Chinese national standard with integrated flange design. Provides reliable locking performance with wider load distribution. Manufactured through cold heading process for consistent quality and dimensional accuracy.

Specifications

Standard

GB/T 6187.1 / GB/T 6187.2

Size Range

M5 - M20

Thread

Metric coarse thread

Material

Carbon Steel

Property Class

Class 8 / Class 10

Surface Finish

Zinc Plated / Plain

Flange Type

Serrated

Locking Type

Nylon insert / All-metal

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Key Features

Conforms to Chinese national standard GB/T 6187
Integrated flange with serrated bottom
Reliable anti-vibration locking
Cold heading formed for consistency
Wide load distribution
Available in nylon insert or all-metal versions

Applications

Automotive manufacturing
Machinery assembly
Construction equipment
Railway vehicles
Agricultural machinery
General industrial applications

Need Custom Specifications?

We support custom sizes, materials, and surface treatments. Contact us with your requirements for a tailored quote.