Description
Hex Head Cap Screws Grade 2 Steel Zinc Plated 5/16-18 x 3 1/4" (PT) provide dependable fastening for general construction, machinery, and automotive projects. Made from Grade 2 steel and finished with zinc plating, these hex head cap screws offer solid strength and corrosion resistance for everyday use.
Key specifications
- Size: 5/16-18
- Length: 3 1/4"
- Material: Grade 2 steel
- Finish: Zinc plated
- Thread pitch: 18 threads per inch (TPI)
- Head style: Hex head cap screw
Ideal for general assemblies, equipment maintenance, and projects requiring reliable fasteners. The zinc plating protects against corrosion in light to moderate environments, while the Grade 2 steel construction provides dependable strength for everyday use.
Pro tip: pair with compatible nuts or tapped holes and use the appropriate hex tool for secure installation.
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800-222-0324

