Value Collection 0507MSR 5-40 Round Head Slotted Machine Screw

Product Description

The VALUE COLLECTION 0507MSR is a 5-40 unified coarse thread machine screw with a round head and slotted drive, manufactured from steel with a zinc finish. It measures 7/16 inches in length under the head and conforms to ASME B18.6.3 and SAE J82 standards. This screw is a general-purpose inch-series fastener used across a wide range of assembly, maintenance, and repair applications. Electricians, HVAC technicians, plumbers, and mechanical contractors commonly use machine screws of this type when securing panels, brackets, terminal blocks, and enclosure hardware. The zinc coating provides basic corrosion resistance for indoor and sheltered installations.

This 5-40 machine screw is suited for light-duty fastening tasks in electrical enclosures, control panels, appliance assemblies, and equipment housings. The round head profile distributes clamping load over a wider surface area, making it a practical choice for thin-gauge sheet metal and plastic substrates. The slotted drive is compatible with standard flat-blade screwdrivers and is commonly used in applications where torque requirements are modest and tooling simplicity is preferred. This item is sold in multiples of 100 pieces minimum.

Key Features

• 5-40 unified coarse thread for compatibility with standard inch-series tapped holes
• Round head profile for broad bearing surface on thin materials
• Slotted drive accepts standard flat-blade screwdrivers
• Steel construction with zinc finish for basic corrosion protection
• Meets ASME B18.6.3 and SAE J82 dimensional and material standards
• No washer included; sold without integrated washer

Compatibility

Designed as a standard inch-series machine screw for use in any application requiring a 5-40 threaded fastener with a round slotted head and 7/16 inch length under head.

Installation Notes

Install using a flat-blade screwdriver sized to the slotted head to avoid cam-out and head damage. Ensure the mating tapped hole or nut is clean and free of debris before threading. Do not exceed the torque capacity appropriate for a No. 5 steel machine screw in the mating material. When used in electrical enclosures, follow all applicable NEC requirements for panel and enclosure hardware.