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The VALUE COLLECTION R57001081 is a hex socket cap screw designed for high-strength fastening applications across mechanical, industrial, and structural assemblies. Threaded at 1/2-13 UNC with a 10-inch length under head, this fastener is driven by a 3/8-inch hex key and provides reliable clamping force in both static and dynamic load conditions. Constructed from 18-8 stainless steel with a bright, uncoated finish, it offers good corrosion resistance in moderate environments without the need for additional surface treatment. Machinists, millwrights, and maintenance technicians commonly use this size fastener in equipment fabrication, fixture building, and general mechanical assembly.
This screw is suited for use in industrial machinery, structural frames, equipment enclosures, and precision fixtures where a recessed drive head and substantial thread engagement are required. The 1/2-13 UNC thread form is a standard coarse-thread designation compatible with corresponding tapped holes or hex nuts in a wide range of fabricated and OEM assemblies. The 10-inch length under head accommodates applications requiring fastening through thick stock or stacked materials.
Designed as a standard 1/2-13 UNC hex socket cap screw suitable for use with compatible tapped holes, threaded inserts, and hex nuts meeting ANSI/ASME thread standards for coarse-thread series fasteners.
Installation is performed by machinists, millwrights, or maintenance technicians using a 3/8-inch hex key or allen driver. Ensure the mating tapped hole or nut is clean and free of debris before driving. De-energize and lock out any equipment being serviced before fastener removal or installation, per applicable OSHA lockout/tagout procedures. Do not exceed recommended torque specifications for 18-8 stainless steel of this thread size, as stainless fasteners are susceptible to galling when over-torqued without lubrication.
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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