Value Collection R57001079 Hex Socket Cap Screw 1/2-13

Product Description

The VALUE COLLECTION R57001079 is a hex socket cap screw designed for high-strength fastening applications across industrial, mechanical, and structural assemblies. It features a 1/2-13 UNC thread and an 8-inch length under the head, making it well suited for deep-reach or through-bolt applications. The screw is driven with a 3/8-inch hex (Allen) key, providing strong torque transfer without external wrench flats. Constructed from 18-8 stainless steel with a bright, uncoated finish, it offers reliable corrosion resistance in wet, outdoor, or chemically exposed environments. This fastener is sold individually and is handled by maintenance technicians, millwrights, pipefitters, and general tradespeople.

This cap screw is used wherever a flush or low-profile fastener head is required alongside substantial clamping strength. Common applications include machinery frames, equipment enclosures, pipe supports, pump housings, and fabricated steel assemblies. The 1/2-13 UNC coarse thread pattern seats quickly and holds well in both tapped steel and stainless steel components. The 8-inch length under head suits thicker stack-ups and through-bolted connections that require extended grip length.

Key Features

• 1/2-13 UNC coarse thread for fast engagement and strong clamping load
• 8-inch length under head accommodates thick material stack-ups and through-bolt configurations
• 3/8-inch hex drive provides positive torque transfer with standard Allen keys or hex bit drivers
• 18-8 stainless steel construction delivers corrosion resistance in wet and outdoor service conditions
• Bright, uncoated finish maintains dimensional accuracy on thread form
• Sold as a single unit, allowing targeted replacement without surplus inventory

Compatibility

Designed as a standard 1/2-13 UNC hex socket cap screw suitable for use in tapped holes or with standard 1/2-13 hex nuts across general industrial, mechanical, and structural fastening applications.

Installation Notes

Installation is performed with a 3/8-inch hex key or Allen-style bit driver; confirm driver engagement is full depth before applying torque to avoid rounding the socket. Ensure mating threads are clean and free of debris before assembly. When installing stainless steel fasteners into stainless steel tapped holes, apply an appropriate anti-seize compound to prevent galling. Always follow applicable torque specifications for the fastener grade and joint material as defined by the relevant engineering or maintenance standard.