Value Collection MP39005 Hex Cap Screw 1/4-20 X 1-1/4 in Grade 8

Product Description

The VALUE COLLECTION MP39005 is a 1/4-20 UNC hex head cap screw manufactured from Grade 8 steel with a zinc yellow dichromate finish. It measures 1-1/4 inches under the head and features partial threading. Grade 8 steel provides high tensile strength suitable for demanding fastener applications in mechanical, structural, and equipment assembly work. The zinc yellow dichromate coating offers corrosion resistance and is visually identifiable by its characteristic yellow iridescent appearance. Sold in a package of 50 pieces, this screw meets ASME B18.2.1 dimensional standards. It is a common choice for maintenance technicians, millwrights, and field service professionals working on equipment requiring high-strength inch-series fasteners.

This screw is appropriate for use in general mechanical assembly, equipment mounting, structural connections, and repair applications where a high-strength UNC fastener is specified. The partial threading is well suited for clamping applications where a smooth shank portion is needed to bear shear loads or align mating parts. These screws are commonly used in HVAC equipment frames, electrical enclosures, motor mounts, pump bases, and similar trade-service scenarios where Grade 8 strength is required.

Key Features

• Grade 8 steel construction for high tensile and proof load strength
• Zinc yellow dichromate finish provides corrosion resistance and easy visual identification
• Partially threaded shank for clamping and shear-load applications
• 1/4-20 UNC thread standard, inch measurement system
• Meets ASME B18.2.1 dimensional standard
• Packaged in quantities of 50 for job-site and shop use

Compatibility

Designed as a standard 1/4-20 UNC hex head cap screw for use in any application requiring a Grade 8 inch-series fastener conforming to ASME B18.2.1.

Installation Notes

Installation is typically performed by maintenance technicians, millwrights, or field service professionals using a standard hex wrench or socket set. Always verify thread engagement depth and ensure mating threads are clean and undamaged before installation. Do not mix inch-series and metric fasteners in the same joint. Follow applicable equipment manufacturer torque specifications and relevant industry codes for the specific application.