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HAIYAN BOLT willing like to share some technical informations freely for the new learners of fastener industry while they are not sure about how to choose or decide which shall be correct or better choice during fastener inquiry,processing, or feedback to their final customers..

Of course, HB will update these technical informations regularly and add more PDF files such as Specifications which including bolt, nut, washer, plating, steel etc, fastener indentification markings, Strength requirement by different grade, or even detailed to Nut compatibility and hardness conversion,thread pitch etc.

We believe we can all learn something from each other by sharing some good stuff. it's beneficial for all of us to grow up together in the fastener world.

AASHTO

Bolt Specifications

Nut Specifications

Plating Specifications

Washer Specifications

ASTM

Bolt Specifications

Casting Forging Specifications

Nut Specifications

Plating Specifications

Rebar Specifications

Steel Specifications

Washer Specifications

CSA

Steel Specifications

SAE

Bolt Specifications

Nut Specifications