Value Collection 1516MSR 1/4-28x1 Round Head Slotted Machine Screw

Product Description

The VALUE COLLECTION 1516MSR is a 1/4-28 x 1 inch round head slotted machine screw manufactured from steel with a zinc finish. The fine 1/4-28 UNF thread pitch provides secure fastening in applications where vibration resistance or close thread engagement is required. Measured length under head is 1 inch. The zinc coating offers basic corrosion resistance for general indoor and light industrial use. Manufactured to ASME B18.6.3 and SAE J82 standards, this fastener suits maintenance, assembly, and fabrication work across mechanical, electrical, and HVAC panel applications. Sold individually with a minimum order quantity of 100 pieces.

This screw is suited for light to medium-duty mechanical assembly tasks in residential, commercial, and industrial settings. Common applications include securing panels, brackets, electrical enclosures, and sheet metal components where a standard round head profile and slotted drive are appropriate. The 1/4-28 fine thread makes it well-matched to tapped holes in metal components requiring precise thread engagement. No washer is included or required by design.

Key Features

• 1/4-28 UNF fine thread for secure engagement in metal tapped applications
• Round head profile with slotted drive for standard flat-blade screwdriver installation
• 1 inch length under head for consistent, measurable fastener depth
• Zinc finish over steel for basic corrosion protection in general-duty environments
• Meets ASME B18.6.3 and SAE J82 standards for dimensional and mechanical compliance
• Sold per piece with a minimum order quantity of 100 units

Compatibility

Designed as a standard 1/4-28 UNF round head slotted machine screw suitable for use in any application requiring an ASME B18.6.3 or SAE J82 compliant fastener in that thread size and length.

Installation Notes

Installation is performed with a standard flat-blade screwdriver sized to the slotted head. Verify that the mating tapped hole is cut to 1/4-28 UNF specifications before driving. Do not overtighten, as the round head profile has a lower bearing surface than a hex or flanged head. Follow applicable codes for the trade involved, such as NEC requirements when fastening electrical enclosure components.