Value Collection R57001063 Hex Socket Cap Screw 3/8-24 Unf

Product Description

The VALUE COLLECTION R57001063 is a hex socket cap screw designed for secure, high-torque fastening in mechanical, industrial, and trade assembly applications. It features a 3/8-24 UNF thread — a fine-pitch unified thread series suited for applications requiring precise thread engagement and resistance to loosening under vibration. The fastener measures 4 inches under the head and accepts a 5/16-inch hex drive. Constructed from 18-8 stainless steel with a bright, uncoated finish, it provides solid corrosion resistance without the need for a protective coating. Licensed trades and maintenance professionals install this type of fastener in equipment assemblies, brackets, flanges, and structural connections where a recessed drive head is required.

This screw is appropriate for residential and commercial mechanical applications where fine-thread fasteners are specified. The 3/8-24 UNF thread pattern is commonly used in precision assemblies, HVAC equipment frames, pump housings, and piping supports. The socket cap head profile allows installation in recessed or clearance-limited spaces where a hex wrench or Allen driver is the preferred tool. The 18-8 stainless steel construction makes it suitable for installations exposed to moisture or mild corrosive environments.

Key Features

• 3/8-24 UNF fine-pitch thread for precise engagement and vibration resistance
• 4-inch length under head accommodates thicker material stacks and spacer assemblies
• 5/16-inch hex socket drive for use with standard Allen keys or hex bit drivers
• 18-8 stainless steel construction provides corrosion resistance in damp or outdoor-adjacent installs
• Bright uncoated finish — no coating to chip, flake, or interfere with thread fit

Compatibility

Designed as a general-purpose fine-thread socket cap screw for use in mechanical and equipment assemblies specifying a 3/8-24 UNF fastener with a 4-inch grip length.

Installation Notes

Install using a calibrated torque wrench and a properly sized 5/16-inch hex key or socket bit to avoid rounding the drive recess. Confirm thread engagement depth and hole preparation comply with the relevant equipment manufacturer specifications or applicable trade codes before final torque. Do not mix stainless fasteners with dissimilar metals in environments where galvanic corrosion is a concern without appropriate isolation. Power down or depressurize any system before accessing fastened components during service.