Value Collection MP39014 Hex Cap Screw 1/4-20 X 4 in Grade 8

Product Description

The VALUE COLLECTION MP39014 is a 1/4-20 UNC hex head cap screw designed for heavy-duty fastening in structural, mechanical, and industrial applications. Manufactured from Grade 8 steel with a zinc yellow dichromate finish, this fastener delivers high tensile strength and corrosion resistance. The screw measures 4 inches under the head and is partially threaded, conforming to ASME B18.2.1 dimensional standards. It is well suited for applications where a clamped joint requires an unthreaded shank section to resist shear loads. Tradespeople and maintenance professionals working with steel assemblies, machinery, and structural components will find this fastener meets demanding load and torque requirements.

This hex head cap screw is used across a broad range of commercial and industrial settings including HVAC equipment mounting, mechanical room structural assemblies, electrical enclosure brackets, and general equipment maintenance. The 1/4-20 coarse thread pattern is one of the most common thread sizes in trade applications, making this screw a reliable stock item for service vehicles and job-site inventory. Sold in packages of 25 units, it is practical for both single-job use and ongoing maintenance stock.

Key Features

• Grade 8 steel construction provides high tensile and proof load strength for demanding fastening applications
• Zinc yellow dichromate finish offers corrosion resistance in mildly harsh environments
• Partially threaded shank resists shear forces across clamped joints
• 1/4-20 UNC thread is one of the most widely used coarse-thread standards in trade work
• Conforms to ASME B18.2.1 for consistent dimensional tolerances
• Sold in a package of 25 for convenient stocking and repeat use

Compatibility

Designed as a standard 1/4-20 UNC hex head cap screw conforming to ASME B18.2.1, suitable for use in any application requiring a Grade 8 partially threaded fastener of this thread size and length.

Installation Notes

Installation is performed with a standard hex wrench or socket driver sized for a 1/4-20 hex head cap screw. De-energize and lock out all equipment before fastener installation or removal in electrical or mechanical systems, following applicable OSHA lockout/tagout procedures. Do not exceed the rated proof load for Grade 8 hardware when torquing; consult a fastener torque reference chart for the appropriate value based on joint material and lubrication condition. Inspect threads for damage before installation to avoid cross-threading or reduced clamp load.