Value Collection 88547039 Hex Socket Cap Screw 1/2-13 Unc

Product Description

The VALUE COLLECTION 88547039 is a partially threaded hex socket cap screw designed for high-strength fastening in mechanical and structural assemblies. Sized at 1/2-13 UNC with a 3-1/2 inch length under the head, this fastener is driven with a 3/8 inch hex key. The alloy steel construction provides the tensile strength required for demanding clamping applications, and the black oxide finish offers a baseline level of corrosion resistance while reducing surface reflectivity. Each package contains 3 screws. This fastener is installed by machinists, millwrights, pipefitters, and general maintenance trades working across industrial, HVAC equipment, and mechanical system applications.

This screw is suited for use in equipment frames, mechanical housings, and structural assemblies where a recessed drive and high clamping force are required. The 1/2-13 UNC coarse thread pattern is widely used in North American industrial equipment, making this a common replacement or field-repair fastener. Partial threading allows the smooth shank to act as a locating surface in through-hole applications. Sold in a pack of 3, this fastener fits into standard maintenance and repair inventories for shops and field technicians.

Key Features

• 1/2-13 UNC coarse thread for compatibility with standard North American fastener patterns
• 3-1/2 inch length under head accommodates thicker material stacks and deep clamping applications
• Partial threading provides a smooth shank for use as a locating or shoulder surface
• Alloy steel construction delivers high tensile and shear strength
• Black oxide finish reduces corrosion and minimizes surface glare in service environments
• 3/8 inch hex drive accepts standard Allen keys and hex bit sockets

Compatibility

Designed as a standard 1/2-13 UNC hex socket cap screw for use in mechanical assemblies, equipment frames, and structural fastening applications that accept partially threaded alloy steel fasteners with a 3/8 inch hex drive.

Installation Notes

De-energize and lock out equipment before replacing fasteners in live mechanical or electrical assemblies. Use a correctly sized 3/8 inch hex key or socket bit to seat the cap screw without rounding the drive cavity. Thread engagement should be verified before applying full torque to avoid cross-threading in tapped holes. Follow applicable machine and equipment manufacturer guidelines for fastener torque specifications.