Value Collection 111347PR Set Screw 5/16-24 X 5/8 in Grade 8

Product Description

The VALUE COLLECTION 111347PR is a 5/16-24 x 5/8 inch alloy steel set screw with a knurled cup point, designed for secure, no-slip fastening in mechanical assemblies. Driven by a 5/32 inch hex key, it meets ASME/ANSI B18.3 and ASTM F912 standards and carries a Grade 8 material rating for high-strength applications. The knurled cup point bites into the mating surface to resist rotational and axial movement without the need for a protruding head. This type of fastener is commonly installed by machinists, millwrights, and maintenance technicians wherever a flush or recessed hold-down point is required on shafts, collars, and similar components.

This set screw suits light industrial, commercial, and mechanical maintenance applications. Typical uses include locking shaft collars, pulleys, gears, and sprockets onto keyed or unkeyed shafts. The UNF 5/16-24 thread provides fine-pitch engagement suited to applications where precise axial positioning and vibration resistance are priorities. Sold individually with a minimum order quantity of 100 pieces, this screw fits standard procurement for production runs, MRO restocking, or shop inventory.

Key Features

• Knurled cup point grips mating surfaces to resist rotation and axial slippage
• Grade 8 alloy steel construction for high tensile and proof-load strength
• 5/16-24 UNF fine-pitch thread for precise positioning and strong thread engagement
• 5/32 inch hex drive compatible with standard hex keys and Allen drivers
• Conforms to ASME/ANSI B18.3 and ASTM F912 dimensional and material standards
• Headless design allows flush or below-surface installation

Compatibility

Designed as a standard ASME/ANSI B18.3 hex socket set screw for use in any application requiring a 5/16-24 UNF threaded, knurled cup point fastener driven with a 5/32 inch hex key.

Installation Notes

Set screws of this type are typically installed by machinists or maintenance technicians using a calibrated torque wrench or a standard hex key. Always de-energize and lock out rotating equipment before accessing shaft-mounted components. Ensure the threaded receiving hole is clean and free of debris before installation. Follow applicable torque specifications from the equipment manufacturer or a recognized fastener torque reference for Grade 8 UNF hardware.