Thumb bolt, named by its shape with flat lines on its head which looks like a thumb.

Haiyan bolt produces this thumb bolt mostly in low carbon steel.


Description of thumb bolt:

Brand name: HB(HAIYAN BOLT)

Standard: OEM, Customized

Size: M5, M6, M8, M10,M12.

Length: open to customer request.

Surface finish: zinc plated white or yellow, black oxide.

Grade: 4.8

Material: low carbon steel.

Supply ability: 50 tons per month.