Value Collection MP39308 Hex Head Cap Screw 1/4-28 X 2 in Grade 8

Product Description

The VALUE COLLECTION MP39308 is a 1/4-28 UNF hex head cap screw manufactured from Grade 8 steel with a zinc yellow dichromate finish. At 2 inches in length under head, the fastener is partially threaded and conforms to ASME B18.2.1 dimensional standards. Grade 8 steel provides high tensile strength suitable for demanding structural and mechanical applications. The zinc yellow dichromate coating adds corrosion resistance while providing a distinctive yellow-tinted appearance that aids in visual identification. These screws are installed using a standard hex wrench or socket driver and are sold in packs of 50.

This fastener is suited for use in industrial, mechanical, and structural assemblies where fine-thread engagement and high-strength fastening are required. The 1/4-28 UNF thread pitch offers greater thread engagement per inch compared to coarse-thread equivalents, making it a common choice in applications where vibration resistance or thinner-walled materials are a factor. Typical installers include millwrights, maintenance mechanics, and fabricators working on equipment, fixtures, and metal assemblies.

Key Features

• Grade 8 steel construction for high tensile and proof load strength
• 1/4-28 UNF fine-thread profile conforming to ASME B18.2.1
• Partially threaded shank — 2 inches length under head
• Zinc yellow dichromate finish provides corrosion resistance and visual identification
• Sold in a 50-piece pack for shop stock and production use

Compatibility

Designed as a standard 1/4-28 UNF hex head cap screw for use in any application requiring an ASME B18.2.1 compliant fastener with Grade 8 steel strength and a 2-inch length under head.

Installation Notes

Install using a standard hex socket or open-end wrench sized to the 1/4-inch hex head. Ensure mating threads are clean and free of debris before installation. Do not exceed the proof load rating of Grade 8 fasteners by over-torquing in softer base materials. Follow applicable mechanical and structural codes for fastener torque specifications relevant to the specific assembly.