Value Collection 40262 Hex Socket Cap Screw 1/2-20 Unf

Product Description

The VALUE COLLECTION 40262 is a partially threaded hex socket cap screw designed for fastening applications that require high tensile strength and precise thread engagement. Built from alloy steel with a black oxide finish, this fastener resists corrosion and reduces light reflection in finished assemblies. The 1/2-20 UNF thread provides a fine-pitch connection suited for applications where vibration resistance or precise torque control is important. The 3/8-inch hex drive socket head accepts a standard hex key or Allen wrench for secure installation. This screw is commonly installed by mechanical assemblers, maintenance technicians, and trade professionals working on machinery, structural components, and equipment frames.

This fastener is appropriate for general industrial, mechanical, and trade assembly applications requiring a fine-thread, partially threaded socket cap screw. With a 2-1/2-inch length under head and alloy steel construction, it is well suited for medium-to-heavy fastening tasks in both shop and field environments. The black oxide coating makes it a practical choice where a low-profile, non-reflective finish is preferred. It meets ASME/ANSI B18.3 and ASTM A574 standards, confirming dimensional and mechanical compliance for demanding fastening applications.

Key Features

• 1/2-20 UNF fine thread for superior vibration resistance and precise torque engagement
• 2-1/2-inch length under head for deep fastening in medium-to-heavy assemblies
• Partially threaded shank provides a grip area for shear load applications
• Alloy steel construction delivers high tensile strength for demanding mechanical use
• Black oxide finish reduces corrosion and surface reflection
• Meets ASME/ANSI B18.3 and ASTM A574 standards for dimensional and mechanical compliance

Compatibility

Designed as an OEM-style replacement or standard-fitment fastener for assemblies requiring a 1/2-20 UNF partially threaded hex socket cap screw with a 3/8-inch drive and 2-1/2-inch length under head.

Installation Notes

Installation requires a 3/8-inch hex key or Allen wrench; use a calibrated torque wrench when a specific clamp load is required by the assembly specification. Ensure mating threaded holes are clean, free of debris, and properly tapped to 1/2-20 UNF before fastening. De-energize and lock out any equipment before accessing fastener locations on powered machinery, following applicable OSHA lockout/tagout procedures. Do not exceed the rated torque for the fastener grade as defined in ASTM A574 specifications.