Value Collection 204074B Hex Head Cap Screw 1/2-13 X 3 in

Product Description

The VALUE COLLECTION 204074B is a 1/2-13 x 3 inch hex head cap screw manufactured from Grade 316 stainless steel. This fastener uses a Unified National Coarse (UNC) thread standard and measures 3 inches under the head with a 3/4 inch hex drive. Grade 316 stainless steel provides elevated corrosion resistance compared to 304-series alloys, making it a preferred choice in chemically aggressive or moisture-heavy environments. Licensed plumbers, pipefitters, HVAC technicians, and general mechanical contractors reach for 316 stainless hardware when installations demand long-term resistance to oxidation, chlorides, and industrial chemicals.

This cap screw is suited for use in plumbing systems, HVAC equipment mounting, pool and spa mechanical installations, marine environments, and chemical processing applications. The 1/2-13 UNC thread pattern is a standard inch-series size compatible with common tapped holes and hex nuts in trade and industrial assemblies. It is equally applicable in both new construction and maintenance or repair work where corrosion-resistant fasteners are specified.

Key Features

• Grade 316 stainless steel construction for superior chloride and chemical corrosion resistance
• 1/2-13 UNC thread standard for broad compatibility with inch-series hardware
• 3 inch length under head suits medium-to-deep clamping applications
• 3/4 inch hex drive accepts standard wrenches and sockets
• Full stainless construction eliminates galvanic corrosion risk when paired with stainless nuts and washers

Compatibility

Designed as a standard 1/2-13 UNC hex head cap screw for use with inch-series tapped holes, hex nuts, and flanged assemblies in trade and industrial applications requiring Grade 316 stainless steel fasteners.

Installation Notes

Installation is performed by qualified tradespeople using standard open-end, box-end, or socket wrenches sized for a 3/4 inch hex. Verify that mating threads, nuts, and washers are also stainless steel to prevent galvanic corrosion in wet or chemically exposed environments. Fastener specifications for structural or pressure-boundary connections may be governed by applicable mechanical or plumbing codes — consult project documentation before substituting hardware grades.