Value Collection 399184PS Hex Cap Screw 1/2-13 X 4 in 316 Ss

Product Description

The VALUE COLLECTION 399184PS is a fully threaded hex head cap screw in 1/2-13 UNC thread with a 4-inch length under head. Manufactured from Grade 316 stainless steel with a bright, uncoated finish, this fastener provides strong corrosion resistance in wet, chemical, or marine environments. The 3/4-inch hex drive is compatible with standard wrenches and sockets. Weighing 0.2 pounds, it is well suited for structural and mechanical assembly work where stainless material is required by specification or code. Installers in HVAC, plumbing, and industrial service regularly reach for Grade 316 hardware when mild steel or Grade 304 won't meet the corrosion exposure requirements of the application.

This cap screw is used in light commercial and industrial fastening applications where a fully threaded, corrosion-resistant fastener is required. Common installation scenarios include equipment mounting, pipe support bracketing, pump and motor assembly, and panel or enclosure work in humid or chemically active environments. The UNC thread form is the standard inch-series thread used across most North American mechanical assemblies, making this screw a direct fit for tapped holes and standard hex nuts in that thread class.

Key Features

• Grade 316 stainless steel construction for superior corrosion resistance compared to Grade 304
• Fully threaded 1/2-13 UNC shank over 4 inches for maximum thread engagement in deep or through-hole applications
• Bright, uncoated finish — no plating to chip, flake, or introduce galvanic incompatibility with stainless mating hardware
• 3/4-inch hex drive accepts standard open-end, box, and socket wrenches
• Inch measurement system, UNC thread standard — direct replacement in existing inch-thread assemblies

Compatibility

Designed for use in standard 1/2-13 UNC tapped holes and with 1/2-13 hex nuts, coupling nuts, or threaded inserts in inch-series mechanical assemblies.

Installation Notes

Installation is performed with a 3/4-inch open-end, combination, or socket wrench. De-energize and depressurize any equipment before fastener service. Apply an anti-seize compound rated for stainless steel if the fastener will be torqued into a stainless tapped hole, as Grade 316 hardware is susceptible to galling under high torque without lubrication. Follow the applicable mechanical or structural code for torque requirements specific to the assembly.