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The VALUE COLLECTION MP30231 is a 3/8-24 UNF hex head cap screw designed for general fastening applications where fine-thread engagement and reliable clamping force are required. Manufactured from Grade 5 steel with a zinc-plated finish, this screw measures 1-1/2 inches under the head and is partially threaded. The zinc coating provides a baseline level of corrosion resistance suitable for indoor and light-duty outdoor environments. Conforming to ASME B18.2.1, this fastener meets recognized dimensional standards for hex cap screws. Sold in a package of 25, it is a practical choice for mechanics, millwrights, pipefitters, and general maintenance personnel working on assemblies that call for a fine-thread 3/8-inch fastener.
This hex cap screw is suited for use in mechanical assemblies, structural connections, equipment mounting, and maintenance applications across commercial and industrial settings. The 3/8-24 UNF thread pitch is commonly used where greater thread engagement strength or finer adjustment is needed compared to coarse-thread equivalents. The partial threading allows the unthreaded shank to bear shear loads in bolted joint designs. This fastener is appropriate for use by licensed tradespeople and maintenance technicians working to engineered specifications.
Designed as a standard hex head cap screw per ASME B18.2.1 for use in any application requiring a 3/8-24 UNF partially threaded fastener in Grade 5 steel.
Installation should be performed by qualified mechanics or tradespeople following applicable engineering specifications and torque requirements for the assembly. Power down or de-energize any equipment before accessing fastener locations on live machinery. Use a properly sized hex wrench or socket to avoid rounding the fastener head. Do not substitute this fine-thread fastener in applications that specify a coarse-thread UNC configuration without verifying thread compatibility with the mating part.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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