Value Collection 454063PR Hex Head Cap Screw 1/4-28 Grade 8

Product Description

The VALUE COLLECTION 454063PR is a Grade 8 steel hex head cap screw designed for high-strength fastening applications. It features a 1/4-28 UNF thread form, a length under head of 3-3/4 inches, and a zinc yellow dichromate finish that provides corrosion resistance in industrial and mechanical environments. The screw is partially threaded per ASME B18.2.1 standards and carries a tensile strength of 5,450 pounds. It is suitable for use by maintenance technicians, millwrights, HVAC installers, and other trade professionals who require a reliable, standardized inch-system fastener in critical assemblies.

This cap screw is used in a wide range of industrial, mechanical, and trade applications where a high-strength inch-series fastener is required. Typical uses include equipment mounting, structural brackets, motor and blower assemblies, and general mechanical assembly work. The 1/4-28 UNF fine thread provides increased thread engagement per inch compared to coarse thread variants, making it well suited for applications requiring precise torque control or resistance to vibration-induced loosening. The zinc yellow dichromate coating offers additional protection in moderately corrosive environments.

Key Features

• Grade 8 steel construction with 5,450-pound tensile strength for high-load fastening
• 1/4-28 UNF fine thread for improved thread engagement and vibration resistance
• Partially threaded shank per ASME B18.2.1 standard
• Zinc yellow dichromate finish for corrosion resistance
• 1/2-inch hex key size for standard wrench fitment
• Inch measurement system - compatible with standard SAE tooling

Compatibility

Designed as an OEM-style replacement or new-installation fastener for applications requiring a 1/4-28 UNF Grade 8 hex head cap screw with a 3-3/4-inch length under head.

Installation Notes

Installation should be performed by a qualified tradesperson using the appropriate 1/2-inch hex wrench or socket. Ensure mating threads are clean and free of debris before installation. De-energize and lock out all electrical or mechanical systems before fastening components in live assemblies. Always torque to values specified by the equipment manufacturer for the fastener size and grade.