Value Collection 111417PR Set Screw 3/8-24 X 1-1/4 in Grade 8

Product Description

The VALUE COLLECTION 111417PR is a 3/8-24 x 1-1/4 inch knurled cup point set screw manufactured from Grade 8 alloy steel. It is driven by a 3/16 inch hex key and conforms to ASME/ANSI B18.3 and ASTM F912 standards. The knurled cup point bites into the mating surface under load, resisting rotational slip and axial movement. Grade 8 alloy steel provides the high tensile strength required in demanding mechanical assemblies. This fastener is installed by machinists, millwrights, and maintenance technicians wherever a flush or recessed fastener is needed to lock a shaft, hub, or collar in position.

The 111417PR is suited for use in shaft-to-hub connections, set collar applications, and general mechanical assemblies found in industrial equipment, HVAC blower assemblies, and drive systems. The UNF 3/8-24 thread pitch offers finer thread engagement than coarse-thread equivalents, making it appropriate for applications requiring precise positioning and secure locking under vibration. This fastener is sold individually but requires a minimum order quantity of 10 pieces.

Key Features

• Knurled cup point digs into shaft surface to resist rotation and axial movement under load
• Grade 8 alloy steel construction for high tensile strength in demanding assemblies
• 3/8-24 UNF thread for fine-pitch engagement and precise positioning
• 3/16 inch hex key drive for use with standard Allen wrenches and hex drivers
• Meets ASME/ANSI B18.3 and ASTM F912 dimensional and mechanical standards
• Overall length of 1-1/4 inches provides deep thread engagement in thicker hubs and collars

Compatibility

Designed as a standard ASME/ANSI B18.3 hex socket set screw for use in any threaded 3/8-24 UNF tapped hole requiring a knurled cup point fastener.

Installation Notes

Installation is performed by machinists, millwrights, or qualified maintenance technicians using a 3/16 inch hex key or Allen driver. Ensure the mating shaft and tapped bore are clean and free of debris before threading in the screw. De-energize and lock out all equipment per OSHA lockout/tagout procedures before accessing rotating assemblies. Do not exceed the rated drive torque for the fastener size, and inspect the cup point engagement after final tightening to confirm proper seating.