Value Collection 307358BR Hex Socket Cap Screw 5/8-18 Unf

Product Description

The VALUE COLLECTION 307358BR is a hex socket cap screw designed for high-strength fastening applications in mechanical assemblies, tooling fixtures, and industrial equipment. It features a 5/8-18 UNF thread size with a 1-1/2 inch length under head and is fully threaded from tip to head. The 1/2 inch hex drive socket accepts a standard hex key or Allen driver. Manufactured from alloy steel and finished with a black oxide coating, this fastener meets ASTM A574 standards for mechanical properties including tensile strength and hardness. It is well suited for applications where a low-profile socket head and high clamping force are required.

This screw is used across a wide range of trade and industrial settings including HVAC equipment assembly, plumbing fixture mounting, electrical enclosure fabrication, and general mechanical maintenance. The fine UNF thread pitch provides stronger thread engagement and better resistance to loosening under vibration compared to coarse thread equivalents, making it appropriate for metal-to-metal fastening in high-load or dynamic environments. Installers working with precision machinery, pumps, compressors, or steel structural components will find this fastener a reliable choice for socket-drive applications.

Key Features

• 5/8-18 UNF fine thread for higher tensile strength and vibration resistance
• Fully threaded 1-1/2 inch length under head for maximum thread engagement
• 1/2 inch hex socket drive compatible with standard Allen keys and hex bit drivers
• Alloy steel construction meets ASTM A574 mechanical requirements
• Black oxide finish provides moderate corrosion resistance and reduces light reflection

Compatibility

Designed as a standard ASTM A574 hex socket cap screw suitable for metal fastening applications requiring a 5/8-18 UNF thread and 1-1/2 inch length under head.

Installation Notes

Installation is performed using a 1/2 inch hex key or hex bit driver; ensure the drive tool is fully seated in the socket before applying torque to avoid stripping. Power down or de-energize any equipment before servicing fasteners on live assemblies. Clean and inspect mating threads prior to installation to ensure proper engagement. Follow applicable ASME or equipment manufacturer fastener specifications for the assembly being serviced.