Value Collection 0505MSB 5-40 Binding Head Slotted Machine Screw

Product Description

The VALUE COLLECTION 0505MSB is a 5-40 UNC machine screw with a binding head and slotted drive, manufactured from steel with a zinc finish. The binding head profile provides a low-profile, wide-bearing surface suited to electrical and light mechanical assembly work. At 5/16 inches in length under head, this screw is sized for thin-panel and terminal block applications common in electrical panels, switchgear, and instrument enclosures. Material grade J82 meets ASME B18.6.3 and SAE J82 standards. Installation requires only a standard flat-blade screwdriver. Sold individually per package with a minimum order quantity of 100 pieces.

The 0505MSB is used in residential and commercial electrical, electronics, and light mechanical assembly applications where a binding head screw is specified. The binding head style is common in wiring terminal and bus bar fastening applications, where the wide underhead bearing surface helps secure wire loops and ring terminals without distortion. Typical installers include licensed electricians, panel assemblers, and instrumentation technicians working on enclosures, panels, and control equipment.

Key Features

• 5-40 UNC thread size for fine-thread engagement in tapped holes and threaded inserts
• Binding head profile provides wide bearing surface, ideal for securing ring terminals and wire loops
• Slotted drive accepts standard flat-blade screwdrivers — no specialty tooling required
• Steel construction with zinc finish for corrosion resistance in indoor environments
• Meets ASME B18.6.3 and SAE J82 dimensional and material standards
• 5/16 inches length under head suits thin-panel and terminal block installations

Compatibility

Designed as a standard 5-40 UNC binding head machine screw per ASME B18.6.3 and SAE J82, suitable for use in any tapped hole or threaded insert specifying a 5-40 binding head slotted fastener in inch-system assemblies.

Installation Notes

De-energize and lock out all circuits before installing or removing screws in electrical panels or control enclosures, following NFPA 70E safe work practices. Use a properly sized flat-blade screwdriver to avoid cam-out and slot damage — a driver tip that fits the slot snugly minimizes fastener damage and improves torque transfer. Do not exceed the torque capacity of the base material when driving into tapped plastic housings or soft metal inserts. Verify thread engagement depth meets assembly drawing requirements before torquing to final position.