Value Collection 208818B Hex Head Cap Screw 1/2-13 Unc

Product Description

The VALUE COLLECTION 208818B is a 1/2-13 UNC hex head cap screw designed for fastening applications that require corrosion-resistant hardware. Machined from Grade 18-8 stainless steel with an uncoated finish, this fastener measures 6 inches in length under the head and features a 3/4-inch hex drive. The coarse 1/2-13 UNC thread pattern provides strong clamping force in a wide range of structural and mechanical assemblies. This screw is used by millwrights, pipefitters, electricians, and general mechanical contractors wherever stainless fasteners are specified.

This cap screw is suited for use in both indoor and outdoor installations where moisture or mild chemical exposure makes carbon steel fasteners a poor choice. Common applications include equipment mounting, pipe support structures, electrical enclosure assembly, and general mechanical fabrication. The 1/2-13 UNC thread is one of the most common coarse-thread sizes in North American trade work, making this fastener broadly applicable across HVAC, plumbing, and industrial maintenance environments.

Key Features

• Grade 18-8 stainless steel construction resists corrosion in wet and mildly corrosive environments
• 1/2-13 UNC coarse thread for broad compatibility with standard nuts and tapped holes
• 6-inch length under head suits deep-grip and through-bolt applications
• 3/4-inch hex drive works with standard combination wrenches and impact sockets
• Uncoated finish — no plating to flake or degrade over time

Compatibility

Designed as a standard 1/2-13 UNC hex head cap screw for use with any corresponding 1/2-13 UNC nut or tapped hole per ASME B18.2.1 fastener standards.

Installation Notes

Installation is performed with a 3/4-inch wrench or socket driver. Always verify thread engagement depth and ensure mating nuts or tapped holes are also stainless or an appropriate compatible metal to prevent galvanic corrosion. When fastening into dissimilar metals, consult applicable mechanical or structural codes for isolator requirements. Never use an impact tool at full torque without confirming thread condition and proper alignment first.