Product Description
5/16" UNF High Tensile Alloy Steel Socket Cap Head Bolts – ASTM A574
These 5/16" UNF socket cap head bolts are manufactured from heat-treated high tensile alloy steel to ASTM A574. They feature a self colour finish, a fine 24 TPI thread and a cylindrical head with an internal hexagon socket.
The closest metric strength grade is property class 12.9. This is a strength comparison; these imperial bolts are specified to ASTM A574 rather than the metric 12.9 classification.
Product Specifications
- Thread size: 5/16" UNF
- Threads per inch: 24 TPI
- Material: Heat-treated high tensile alloy steel
- Strength specification: ASTM A574
- Metric equivalent grade: 12.9
- Finish: Self colour
- Head style: Cylindrical socket cap head
- Allen key size: 1/4"
- Thread coverage: Part threaded with shank
- Length measurement: From beneath the head to the tip
- Lengths and pack quantities: Choose from the available product options
Typical Applications
Suitable for machinery, equipment repairs, tooling and engineering assemblies requiring high tensile imperial fine thread socket cap bolts.
Installation
Use with a matching 5/16"-24 UNF nut or tapped hole. Check the required thread engagement and shank length before fitting. Tighten using a correctly fitting 1/4" Allen key or hexagon bit and follow the assembly manufacturer's torque requirements.
Apply suitable corrosion protection where moisture exposure is expected.
Standards
- ASME B18.3: Imperial socket head cap screw dimensions
- ASTM A574: Alloy steel socket head cap screw material and mechanical properties
