Value Collection 40537 Set Screw 5/16-24 X 1/2 in Grade 8

Product Description

The VALUE COLLECTION 40537 is a Grade 8 alloy steel set screw with a 5/16-24 UNF thread and an overall length of 0.5 inches. It features a knurled cup point designed to bite into mating surfaces and resist loosening under vibration or load. Drive is a 5/32-inch hex key socket, conforming to ASME/ANSI B18.3 and ASTM F912 standards. These fasteners are sold in a pack of 50 and are a standard choice for mechanical assemblies where a headless, flush-mount clamping solution is required. Licensed tradespeople and maintenance technicians across HVAC, plumbing, and general mechanical service rely on this thread size for shaft-to-collar and set-point applications.

This set screw is suited for residential and light commercial mechanical installations where a 5/16-24 UNF thread form is specified. Common applications include securing collars, pulleys, gears, and knobs to shafts, as well as locking adjustable components in fixed positions. The knurled cup point provides a positive grip on softer shaft materials. Grade 8 alloy steel construction makes this screw appropriate for higher-stress clamping situations compared to lower-grade fasteners.

Key Features

• Knurled cup point bites into shaft material for positive rotational and axial retention
• Grade 8 alloy steel construction for elevated tensile and proof load capacity
• 5/16-24 UNF thread for fine-pitch engagement and precise clamping adjustment
• 5/32-inch hex key drive keeps the fastener fully recessed and flush with the mating part
• Conforms to ASME/ANSI B18.3 and ASTM F912 dimensional and mechanical standards
• Pack of 50 supports job-site and shop stock needs

Compatibility

Designed as a standard 5/16-24 UNF Grade 8 alloy steel set screw for use in any mechanical assembly calling for ASME/ANSI B18.3 or ASTM F912 compliant headless fasteners with a knurled cup point.

Installation Notes

Installation is performed with a 5/32-inch hex key. Before installing or removing set screws in any mechanical system, de-energize and lock out the equipment per applicable safety procedures. Do not overtighten; snug the screw firmly against the shaft without exceeding the torque capacity of the hex drive. Ensure mating shaft surfaces are clean and free of burrs before seating the cup point.