Value Collection 011457BR Hex Socket Cap Screw 5/8-18 Unf

Product Description

The VALUE COLLECTION 011457BR is a hex socket cap screw engineered for high-strength fastening applications in mechanical assemblies, tooling, and structural components. It features a 5/8-18 UNF thread form — a fine-pitch thread that delivers superior clamp load and vibration resistance compared to coarse-pitch equivalents. The screw is manufactured from alloy steel and finished with a black oxide coating that provides mild corrosion resistance and a low-reflectivity surface. Drive size is 1/2 inch hex socket. Length under head is 2-1/2 inches with partial threading. Licensed mechanical contractors, maintenance technicians, and toolmakers are the primary installers.

This fastener is suited for precision assemblies where fine-thread engagement is required, including machine components, jigs, fixtures, and hydraulic or pneumatic equipment mounting. The partial threading allows for full shank bearing load in clearance-fit applications. Black oxide finish makes it appropriate for controlled-environment installations where light corrosion protection is acceptable and appearance is a consideration. Sold individually; minimum order quantity is 10 units.

Key Features

• 5/8-18 UNF fine-pitch thread for high clamp load and vibration resistance
• Alloy steel construction meets ASME/ANSI B18.3 and ASTM A574 standards
• Partially threaded shank supports shear load in clearance-fit applications
• 1/2-inch hex socket drive for standard Allen key or socket tooling
• Black oxide coating provides mild corrosion protection and low reflectivity
• 2-1/2-inch length under head suitable for thick-stack mechanical assemblies

Compatibility

Designed as a standard ASME/ANSI B18.3 and ASTM A574 hex socket cap screw for use in any application requiring a 5/8-18 UNF fine-thread fastener with a 1/2-inch hex drive.

Installation Notes

Installation is performed by mechanical technicians, millwrights, or maintenance personnel using a 1/2-inch hex key or socket driver. De-energize and lock out all equipment before fastener installation or removal in powered assemblies. Verify thread engagement and hole condition before installation; damaged or cross-threaded holes should be chased or replaced before use. Black oxide finish is not a substitute for corrosion-resistant coatings in wet or outdoor environments.