Value Collection 111329PR Set Screw 5/16-18 X 3/4 in Grade 8

Product Description

The VALUE COLLECTION 111329PR is a 5/16-18 x 3/4 inch knurled cup point set screw manufactured from Grade 8 alloy steel. It is driven with a 5/32 inch hex key and conforms to ASME/ANSI B18.3 and ASTM F912 standards. The knurled cup point bites into the mating shaft surface to resist rotation and axial movement under load. This fastener is sold in multiples and is commonly installed by machinists, millwrights, and maintenance technicians working on mechanical assemblies where a flush or recessed fastener is required.

This set screw is suited for use in collars, pulleys, sprockets, gears, and shaft couplings across industrial, commercial, and light manufacturing environments. The UNC thread form and Grade 8 material rating make it appropriate for applications requiring reliable clamping force and resistance to vibration loosening. Minimum order quantity is 100 pieces, making this item appropriate for shop stock, MRO inventory, and production-line use.

Key Features

• Knurled cup point provides positive bite on shaft surfaces to prevent slippage
• Grade 8 alloy steel construction for high tensile and torsional strength
• 5/16-18 UNC thread for broad compatibility with standard tapped holes
• 5/32 inch hex drive for use with standard hex keys or Allen wrenches
• Meets ASME/ANSI B18.3 and ASTM F912 dimensional and material standards

Compatibility

Designed as a standard UNC set screw for use in any tapped 5/16-18 hole requiring a knurled cup point fastener per ASME/ANSI B18.3 specification.

Installation Notes

Installation is performed by machinists or maintenance technicians using a 5/32 inch hex key. Ensure the mating shaft and tapped hole are clean and free of debris before driving the screw. Do not exceed the torque capacity of the alloy steel threads by using oversized or extended-handle drivers that may cause thread stripping. Follow applicable machine safety lockout/tagout procedures before servicing any rotating assembly.