Value Collection R57001279 Hex Head Cap Screw 3/4-16

Product Description

The VALUE COLLECTION R57001279 is a partially threaded hex head cap screw designed for general fastening applications in mechanical, structural, and industrial assemblies. Sized at 3/4-16 UNF thread with a 2-3/4-inch length under head, this screw is manufactured from 18-8 stainless steel and left uncoated, providing solid corrosion resistance without additional surface treatment. The 3/4-16 designation indicates a fine-thread pattern, which delivers greater tensile strength and superior resistance to loosening under vibration compared to coarse-thread equivalents. Machinists, millwrights, maintenance technicians, and field service pros commonly reach for this fastener in environments where rust resistance matters.

This cap screw is suited for use in both light commercial and industrial settings where stainless steel fasteners are specified. The partially threaded shank allows for proper clamping force when joining components of specific thicknesses. Typical applications include equipment fabrication, machinery assembly, pump and motor mounting, and general MRO maintenance work requiring a fine-thread stainless fastener in the 3/4-inch diameter range.

Key Features

• 3/4-16 UNF fine-thread pattern for higher clamping load and vibration resistance
• 2-3/4-inch length measured under head for accurate fitment in engineered assemblies
• 18-8 stainless steel construction provides corrosion resistance in wet and outdoor environments
• Partially threaded shank ensures proper bearing and clamping across joined material thickness
• Uncoated finish maintains consistent dimensional tolerances without added plating buildup
• Inch measurement system for compatibility with standard SAE tooling and drawings

Compatibility

Designed as a standard 3/4-16 UNF hex head cap screw for use in any application specifying an 18-8 stainless steel partially threaded fastener of this thread size and length.

Installation Notes

Installation is performed with a standard hex wrench or socket sized for a 3/4-inch hex head cap screw. Verify the mating tapped hole or nut is rated for UNF thread and is free of debris before driving. Do not exceed the torque specifications listed in the applicable engineering drawing or equipment service manual for this fastener size and material grade. Stainless steel fasteners are susceptible to galling during installation — apply an appropriate anti-seize compound to the threads when torquing to spec.