Lion Steel LLC Supply

ASTM A307 Round Head Fin Neck Bolt — 1/2″

A round head fin neck A307 bolt designed for secure fastening in wood and metal applications. Provides stable installation with excellent resistance to loosening.

Specifications

Additional information

Diameter

Grade

Thread

Head Type

Neck Type

Fin Neck

Material

Coating

,

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Description

This ASTM A307 Round Head Fin Neck Bolt features a smooth, low-profile dome head and ribbed fin neck designed to prevent rotation during tightening. Manufactured from low-carbon steel, A307 bolts provide reliable performance in general construction, wood assemblies, and light-duty structural applications. Ideal for securing timber, posts, plates, and other components requiring a flush, finished appearance.

  • Round head with smooth profile

  • Fin neck prevents bolt spin during tightening

  • Meets ASTM A307 standards

  • Suitable for wood and light metal fastening

  • Durable low-carbon steel construction

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