Value Collection 0405MSB 4-40 X 5/16 Binding Head Slotted Machine

Product Description

The VALUE COLLECTION 0405MSB is a 4-40 binding head slotted machine screw designed for general-purpose fastening in light mechanical assemblies. It features a 5/16 inch length under head and a slotted drive for installation with a standard flat-blade screwdriver. Manufactured from steel with a zinc finish, this screw meets ASME B18.6.3 and SAE J82 standards for dimensional accuracy and material grade. The binding head profile provides a low-profile, wide-bearing seat that distributes clamping load and reduces the risk of surface damage on softer substrates. Sold in a package quantity of one with a minimum order quantity of 100 units.

This screw is suited for use in electronic enclosures, instrument panels, light-gauge sheet metal assemblies, and general mechanical fabrication where a 4-40 unified coarse thread is specified. The binding head design is commonly used in applications where wire or cable termination under the head is required, such as terminal board assemblies. The zinc finish provides basic corrosion resistance for indoor environments. Trade professionals and maintenance technicians working on panel wiring, control enclosures, and small mechanical assemblies will find this a standard stock fastener.

Key Features

• 4-40 unified coarse thread for compatibility with standard 4-40 tapped holes and nuts
• Binding head profile provides wide bearing surface and suits wire-termination applications
• Slotted drive accepts standard flat-blade screwdrivers and manual installation tools
• Steel construction with zinc finish for basic indoor corrosion resistance
• Meets ASME B18.6.3 and SAE J82 dimensional and material grade standards
• 5/16 inch length under head suits light-gauge panel and enclosure fastening

Compatibility

Designed as a standard 4-40 machine screw for use with any application specifying a 4-40 unified coarse thread, binding head, slotted drive fastener per ASME B18.6.3.

Installation Notes

Install using a flat-blade screwdriver sized to fit the slotted drive without slipping to avoid cam-out and head damage. De-energize and lock out any electrical panel or control enclosure before installing or removing fasteners in live equipment per applicable NFPA 70 (NEC) guidelines. Do not overtighten into tapped holes in soft materials such as aluminum or thermoplastic; hand-snug and one-quarter turn is typically sufficient for light-gauge panels. Inspect threads in the mating component before installation to ensure clean engagement.