Value Collection 872049PR Hex Socket Cap Screw 5-40 Unc

Product Description

The VALUE COLLECTION 872049PR is a hex socket cap screw designed for precision fastening in mechanical assemblies, tooling fixtures, and industrial equipment. It features a 5-40 UNC thread size with a 5/8-inch length under the head and is fully threaded along its entire shank. The drive is a 3/32-inch hex (Allen) socket, accepting a standard hex key for installation. Constructed from alloy steel with a zinc-plated finish, it delivers solid corrosion resistance in typical indoor and light-duty environments. This screw is sized for small-bore applications where a flush or low-profile fastener head is required. Installation is performed by machinists, maintenance technicians, and mechanical trades.

This screw fits applications requiring a compact, fully threaded cap screw in the 5-40 UNC thread class. Common uses include securing components in precision machine assemblies, electrical enclosures, fixture plates, and light industrial equipment where torque capacity and thread engagement in alloy steel are needed. The zinc coating provides a baseline level of corrosion resistance suitable for controlled environments. These screws are sold in minimum order quantities of 100 units per order.

Key Features

• 5-40 UNC fully threaded shank for maximum thread engagement across the full 5/8-inch length under head
• 3/32-inch hex socket drive for use with standard hex key or Allen wrench tooling
• Alloy steel construction meeting ASME B18.8 and ASTM A574 standards
• Zinc-plated finish for basic corrosion resistance in indoor and controlled-environment applications
• Compact cap screw profile suited to tight-clearance and small-bore fastening scenarios

Compatibility

Designed as a standard 5-40 UNC hex socket cap screw conforming to ASME B18.8 and ASTM A574, suitable for use in mechanical assemblies, fixtures, and equipment that call out this thread size and drive type.

Installation Notes

Install using a 3/32-inch hex key or Allen driver; ensure the drive tool is fully seated before applying torque to avoid rounding the socket. Verify the mating tapped hole conforms to 5-40 UNC thread class before installation. Thread engagement depth should be appropriate for the base material to prevent stripping. Do not use in applications requiring stainless steel or high-temperature fastener grades without confirming compatibility with the design specification.