Value Collection R83924916 Machine Screw 5/16-18 Unc

Product Description

The VALUE COLLECTION R83924916 is a 5/16-18 UNC machine screw with a round head and slotted drive, manufactured from 18-8 stainless steel with a bright, uncoated finish. It measures 1-3/4 inches in length under the head, conforming to inch-system thread standards. The 18-8 stainless steel construction provides solid corrosion resistance for general industrial, mechanical, and maintenance applications. This fastener is installed by maintenance technicians, millwrights, HVAC mechanics, and plumbers wherever a standard UNC thread pattern and slotted drive are required.

This screw is suited for light to medium-duty fastening tasks in residential and commercial settings. Its round head profile sits above the fastened surface, making it appropriate for through-hole applications where a low-profile or flush finish is not required. The slotted drive accepts a standard flat-blade screwdriver, keeping tooling requirements minimal. No washer is included or integrated into this fastener.

Key Features

• 5/16-18 UNC thread for compatibility with standard inch-system tapped holes and nuts
• 1-3/4 inch length measured under the head
• 18-8 stainless steel construction for corrosion resistance in wet or outdoor-adjacent environments
• Bright, uncoated finish — no additional plating or coating to affect dimensional tolerances
• Round head profile accepts flat-blade slotted driver
• No washer — installs directly against the mating surface

Compatibility

Designed as a standard 5/16-18 UNC inch-system machine screw suitable for use with any tapped hole or nut conforming to 5/16-18 Unified National Coarse thread specifications.

Installation Notes

Install using a flat-blade screwdriver sized to the slotted head. Ensure the mating tapped hole or nut is clean and free of debris before threading. When installing stainless steel fasteners into stainless threads, apply an anti-seize compound to reduce the risk of galling. Follow applicable mechanical or equipment codes for torque and fastener selection in structural or pressure-bearing assemblies.