Value Collection 111393PR Set Screw 3/8-16 X 1/2 in Grade 8

Product Description

The VALUE COLLECTION 111393PR is a 3/8-16 x 1/2 inch alloy steel set screw with a knurled cup point, designed for secure, no-slip fastening in mechanical assemblies. Manufactured to Grade 8 material standards and conforming to ASME/ANSI B18.3 and ASTM F912, this fastener delivers the strength and dimensional consistency required in precision industrial and maintenance applications. Driven with a 3/16 inch hex key, it is well suited for locking shaft collars, pulleys, gears, and similar rotating components where a positive bite into the mating surface is needed. Trade professionals in HVAC, mechanical, and general industrial service will recognize this as a standard UNC-thread set screw for everyday mechanical assembly work.

This set screw is appropriate for use in residential and commercial mechanical systems wherever a 3/8-16 UNC thread pattern is specified. Typical applications include securing fan hubs, blower wheel collars, motor shaft components, and other rotating or sliding assemblies that require a threaded locking fastener without a protruding head. The knurled cup point bites into softer shaft materials to resist rotation and axial movement, making it a practical choice for both new installation and field replacement work.

Key Features

• 3/8-16 UNC thread for broad compatibility with standard threaded bores
• Knurled cup point provides positive grip and resistance to loosening on shaft surfaces
• Grade 8 alloy steel construction for high tensile and torsional strength
• 3/16 inch hex drive accepts standard hex keys and hex bit drivers
• Conforms to ASME/ANSI B18.3 and ASTM F912 dimensional and material standards
• Headless design sits flush with or below the surface for clearance-sensitive installations

Compatibility

Designed as a standard 3/8-16 UNC set screw suitable for any threaded bore or collar conforming to that thread specification. No specific model or system compatibility was stated in the product data.

Installation Notes

Installation is typically performed by mechanical or HVAC technicians using a 3/16 inch hex key or L-wrench. Always de-energize and lock out the equipment before servicing any rotating component secured by this fastener. Tighten to the torque specification required by the equipment manufacturer for the shaft material and collar being used. Inspect the mating shaft surface for damage or wear before reinstalling or replacing set screws.