Value Collection BT-51618-375-AS Set Screw 5/16-18 X 3/8 in

Product Description

The VALUE COLLECTION BT-51618-375-AS is a Grade 8 alloy steel set screw with a 5/16-18 UNC/UNF thread profile and a 3/8-inch threaded length. It uses a hex drive for reliable torque application and features a soft brass tip at the point, which protects the mating shaft surface from galling or deformation during tightening. This type of fastener is used across mechanical, HVAC, plumbing, and electrical equipment assemblies wherever a component must be locked to a shaft or bore without a traditional bolt head. Machinists, millwrights, and field technicians install these in motor pulleys, set-collar assemblies, and mechanical linkages.

This set screw is suited for light industrial and commercial applications where shaft protection is a priority. The brass soft tip compresses slightly under load, reducing the risk of marring hardened or finished shafts. The Grade 8 alloy steel body provides the tensile strength needed for high-torque clamping applications. Typical installation settings include HVAC blower wheel hubs, pump impeller collars, coupling assemblies, and similar rotating equipment found in both residential and commercial mechanical systems.

Key Features

• Grade 8 alloy steel body for high-strength clamping performance
• Brass soft tip protects shaft surfaces from scoring and galling
• Hex drive for standard Allen wrench installation
• 5/16-18 thread size with UNC and UNF compatibility
• 3/8-inch length measured as full thread length
• UNSPSC Code 31161505 for procurement classification

Compatibility

Designed as an OEM-style replacement or maintenance fastener for mechanical assemblies requiring a 5/16-18 threaded set screw with a soft tip point, including blower hubs, shaft collars, couplings, and similar rotating or clamped components.

Installation Notes

Installation requires a hex key (Allen wrench) sized to the socket drive. De-energize and lock out any associated motor or rotating equipment before servicing shaft-mounted components. Do not overtighten, as the brass tip is designed to deform slightly against the shaft for grip. Follow applicable mechanical codes and equipment manufacturer torque guidance for the assembly being serviced.