Hex Head Cap Screws Grade 5 Steel Plain (USA Made) 5/16-18 x 1 3/4 are high-strength fasteners designed for dependable performance in industrial and mechanical assemblies. Made in the USA from Grade 5 steel, these plain (uncoated) hex screws deliver reliable strength for a wide range of applications.

Designed for robust fastening, these screws feature a standard 5/16-18 UNC thread and a 1 3/4 in length, making them suitable for many automotive, machinery, and equipment projects. The hex head provides easy, tool-friendly driving and high torque transfer for secure joint integrity.

• Size & Thread: 5/16-18 UNC, length 1 3/4 in
• Head style: Hex head cap screw
• Material: Grade 5 steel
• Finish: Plain (uncoated)
• Origin: USA made
• Applications: Machinery, automotive, equipment assembly, and general fastening

For best results, pair with compatible nuts and washers and apply proper torque to ensure a secure fit. This plain, high-strength fastener is ideal when a clean, unplated finish is required or when additional finishing is planned after installation.