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The VALUE COLLECTION R57001146 is a fully threaded hex head cap screw in a 3/8-16 UNC thread size with an 8-inch length under head. Manufactured from 18-8 stainless steel with a bright, uncoated finish, this fastener delivers solid corrosion resistance in wet, outdoor, and chemically exposed environments. The full-thread configuration along the entire 8-inch shank provides consistent clamping force and flexibility in application depth. Licensed tradespeople and fabricators working in HVAC, plumbing, and general mechanical assembly rely on fasteners like this for structural and equipment-mounting applications where stainless material grades are specified.
This cap screw is suited for use in residential and light commercial mechanical installations, equipment frames, pipe supports, electrical enclosures, and general fabrication where stainless steel is required to resist corrosion or meet material specifications. The UNC thread standard makes it compatible with standard inch-series tapped holes and nuts. The 8-inch length under head accommodates thicker assemblies, stacked components, or applications requiring extended thread engagement. Minimum order quantity is 5 pieces.
Designed for use in standard inch-series tapped holes and with 3/8-16 UNC hex nuts and threaded inserts across mechanical, HVAC, plumbing, and electrical equipment assemblies.
Installation is typically performed by mechanical contractors, HVAC technicians, plumbers, or electricians during equipment mounting or structural assembly. De-energize and lock out any equipment before fastening into or near live systems. Use a properly sized hex socket or open-end wrench to avoid rounding the hex head. When threading into tapped holes, verify thread engagement depth meets the requirements of the assembly specification.
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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