Value Collection 208999 Hex Head Cap Screw 5/8-11 X 3 in

Product Description

The VALUE COLLECTION 208999 is a 5/8-11 hex head cap screw measuring 3 inches under the head, manufactured from 18-8 stainless steel. The 18-8 grade alloy provides reliable corrosion resistance in wet, humid, and mildly chemical environments, making it a practical choice for mechanical assemblies, equipment mounting, and structural fastening. The thread standard is UNC (Unified National Coarse), and the hex drive measures 15/16 inches across the flats. Installers in HVAC, plumbing, pool equipment, and general mechanical trades use this fastener where standard carbon steel hardware would corrode prematurely.

This screw suits residential and light commercial applications where stainless steel fasteners are specified. Common uses include mounting brackets, fan assemblies, pump housings, heat exchanger frames, and pool equipment enclosures. The 5/8-11 UNC thread engages standard tapped holes and nuts of the same designation. The 3-inch under-head length accommodates moderate stack-ups of panels, flanges, or structural members. This fastener is sold individually but requires a minimum order of 10 pieces per purchase.

Key Features

• 18-8 stainless steel construction resists corrosion in wet and outdoor service environments
• 5/8-11 UNC thread standard fits widely available matching nuts and tapped components
• 3-inch length under head suits moderate-depth clamping and mounting applications
• 15/16-inch hex drive works with standard combination wrenches and sockets
• Inch measurement system — dimensioned and threaded to ANSI/ASME standards

Compatibility

Designed for use in any application requiring a 5/8-11 UNC hex head cap screw in 18-8 stainless steel. Mates with standard 5/8-11 UNC hex nuts, locknuts, and tapped holes conforming to unified inch thread specifications.

Installation Notes

Install using a 15/16-inch combination wrench or socket driver. De-energize all electrical systems and relieve system pressure before fastening or removing hardware on live equipment. Apply an anti-seize compound appropriate for stainless fasteners to prevent galling during installation — stainless threads are prone to galling under high torque without lubrication. Follow applicable mechanical codes and equipment manufacturer torque guidance for the assembly being serviced.