Value Collection 0516MSR 5-40x1 Round Head Slotted Machine Screw

Product Description

The VALUE COLLECTION 0516MSR is a 5-40 x 1 inch round head slotted machine screw designed for precision fastening in light mechanical assemblies. Manufactured from steel with a zinc finish, this screw meets ASME B18.6.3 and SAE J82 standards, making it a reliable choice for general-purpose threaded fastener applications. The round head profile provides a low-profile dome shape that seats flush against workpiece surfaces without a washer. Measurement is taken as length under head, confirming 1 inch of usable thread and shank engagement. This fastener is installed by mechanics, machine technicians, and field service professionals across a wide range of equipment and panel assembly work.

This screw is suited for use in light industrial, commercial, and mechanical equipment where a 5-40 inch thread is specified. Typical applications include electronic enclosures, control panels, instrument housings, and small mechanical assemblies requiring a slotted drive for manual or screwdriver installation. The zinc coating provides moderate corrosion resistance in dry indoor environments. Sold individually with a minimum order quantity of 100 pieces per order, this fastener is packaged as a single unit per package quantity.

Key Features

• 5-40 UNC thread size with 1 inch length under head
• Round head profile for flush seating without a washer
• Slotted drive compatible with standard flat-blade screwdrivers
• Steel construction with zinc finish for indoor corrosion resistance
• Meets ASME B18.6.3 and SAE J82 fastener standards
• Inch measurement system; no washer included

Compatibility

Designed as a standard 5-40 UNC threaded machine screw for use in any application specifying a round head slotted fastener of this thread size and length per ASME B18.6.3.

Installation Notes

Installation is performed with a standard flat-blade screwdriver sized to the slotted head. Ensure the mating threaded hole or nut is clean and free of debris before driving the fastener. Do not overtighten, as the 5-40 thread is a fine-pitch light fastener susceptible to thread stripping in softer base materials. Follow applicable equipment manufacturer torque guidelines where specified.