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The VALUE COLLECTION 204288B is a 5/8-11 hex head cap screw manufactured from Grade 316 stainless steel with a 3-inch length under head and a 15/16-inch hex drive. Grade 316 stainless steel provides superior corrosion resistance compared to Grade 304, making it well suited for wet, marine, chemical, and outdoor environments. The Unified National Coarse (UNC) thread form offers reliable engagement and is widely used across mechanical and structural fastening applications. This screw is sold individually and is appropriate for licensed tradespeople and maintenance professionals working in corrosion-sensitive installations.
This fastener is used in plumbing, HVAC, electrical, marine, food service, and industrial maintenance applications where moisture, salt air, or chemical exposure is a concern. The 5/8-11 UNC thread size is a common heavy-duty fastener dimension found in equipment mounting, pipe flanges, structural brackets, and mechanical assemblies. It is an inch-system fastener and is not interchangeable with metric hardware of similar appearance.
Designed for use with standard 5/8-11 UNC nuts, washers, and tapped holes in inch-system assemblies. Suitable for any application requiring a 5/8-11 x 3-inch hex head cap screw in a corrosion-resistant material grade.
Installation is performed by maintenance technicians, pipefitters, or millwrights using a 15/16-inch wrench or socket. Always verify thread engagement length and material compatibility before installation in structural or pressure-bearing assemblies. Do not mix with metric fasteners of similar nominal size. Follow applicable codes and equipment manufacturer guidelines for torque requirements specific to the assembly.
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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