Value Collection 5064MSR 1/2-13x4 Round Head Slotted Machine Screw

Product Description

The VALUE COLLECTION 5064MSR is a slotted round head machine screw intended for general mechanical and structural fastening applications. It features a 1/2-13 UNC thread profile and measures 4 inches in length under the head, making it suitable for through-bolt assemblies and deeper thread engagement requirements. Manufactured from steel with a zinc finish, it meets the ASME B18.6.3 and SAE J82 standards for dimensional accuracy and material grade. This fastener is installed by maintenance technicians, millwrights, and trade professionals working on equipment assembly, panel mounting, and machinery repair tasks.

This screw is commonly used in industrial maintenance, equipment fabrication, and mechanical assembly environments where a standard inch-series coarse thread fastener is required. The round head profile provides a low-profile clamping surface suited for applications where a flat bearing surface is not critical. The slotted drive accepts a flat-blade screwdriver or bit, which is a standard tool in most trade shops and field kits. It is sold in a minimum order quantity of 25 pieces per package.

Key Features

• 1/2-13 UNC coarse thread for broad compatibility with standard inch-series tapped holes
• 4-inch length under head for deep fastening applications
• Round head profile suitable for surface-mount and through-bolt installations
• Slotted drive compatible with flat-blade screwdrivers and bits
• Zinc finish provides basic corrosion resistance for indoor and sheltered applications
• Meets ASME B18.6.3 and SAE J82 dimensional and material standards

Compatibility

Designed as a standard inch-series machine screw for use in any application requiring a 1/2-13 UNC coarse thread fastener with a round slotted head. No washer included; specified without washer per ASME B18.6.3.

Installation Notes

Installation requires a flat-blade screwdriver or matching slotted bit of appropriate size for the 1/2-13 head. Ensure the mating tapped hole or nut is also rated to the same thread specification before driving. De-energize and lock out any powered equipment before fastening work on live machinery per applicable OSHA lockout/tagout procedures. Do not over-torque; verify torque requirements against the assembly specification for the application.