Value Collection 583715PR 5/16-18 X 1/2 in Round Head Slotted Screw

Product Description

The VALUE COLLECTION 583715PR is a 5/16-18 x 1/2 inch round head slotted machine screw manufactured from alloy steel with a zinc finish. It carries a Grade 2 material designation and is threaded to Unified National Coarse (UNC) standards with length measured under the head. The slotted drive accepts a flat-blade screwdriver for installation. With a zinc coating, the screw offers basic corrosion resistance suitable for general indoor mechanical assembly. This fastener is sold in a minimum order quantity of 100 pieces, making it appropriate for production, maintenance, and repair applications where consistent fastener stock is required.

This screw is suited for light-to-medium duty mechanical assemblies in HVAC equipment, electrical enclosures, plumbing fixtures, and general trade applications. The 5/16-18 UNC thread is a widely used coarse-thread size compatible with standard tapped holes and hex nuts of the same designation. The round head profile provides a low-clearance bearing surface and a clean appearance in exposed or semi-exposed installations. Technicians and assemblers working on sheet metal panels, junction boxes, and equipment housings will find this a standard stock item.

Key Features

• 5/16-18 UNC coarse thread for broad compatibility with standard tapped holes and nuts
• 1/2 inch length under head for shallow through-hole and tapped-hole applications
• Round head profile distributes clamping load and suits exposed fastener positions
• Slotted drive compatible with flat-blade screwdrivers and power driver bits
• Alloy steel construction with zinc finish for general indoor corrosion resistance
• Grade 2 designation indicates standard mechanical property requirements for light-duty fastening

Compatibility

Designed as a general-purpose UNC machine screw for use in standard 5/16-18 tapped holes across mechanical, electrical, and HVAC assemblies.

Installation Notes

Installation is performed by hand-starting the screw into a pre-tapped or through hole and tightening with an appropriate flat-blade screwdriver or driver bit. Ensure the mating thread is clean and free of debris before installation. Do not overtighten alloy steel screws in soft base materials such as aluminum or plastic. Always verify thread engagement is sufficient before applying torque.