Value Collection 0503MSL 5-40 X 3/16 Fillister Slotted Machine Screw

Product Description

The VALUE COLLECTION 0503MSL is a 5-40 x 3/16 inch fillister head machine screw with a slotted drive, manufactured from steel with a zinc finish. It conforms to ASME B18.6.3 and SAE J82 standards, making it a reliable fastener for precision mechanical assemblies. The fillister head profile offers a taller, narrower head than a pan head, which is well suited for close-tolerance countersunk applications where a raised head is acceptable. Length is measured under the head, at 3/16 inches. This screw is used by machinists, maintenance technicians, electricians, and HVAC service professionals working with panel assemblies, enclosures, and equipment housings.

The 0503MSL is appropriate for light-duty mechanical and electrical assembly work in both residential and commercial settings. The 5-40 thread size is commonly found in instrument panels, control boards, junction boxes, and small appliance or equipment enclosures. The zinc finish provides basic corrosion resistance suitable for indoor, dry or mildly humid environments. This screw is sold individually per package with a minimum order quantity of 100 pieces.

Key Features

• 5-40 thread size, 3/16 inch length under head for precise fitment in tight assemblies
• Fillister head profile provides a taller head for positive driver engagement in recessed holes
• Slotted drive compatible with standard flat-blade screwdrivers
• Steel construction with zinc finish for basic corrosion resistance
• Meets ASME B18.6.3 and SAE J82 fastener standards
• No washer, inch system of measurement

Compatibility

Designed as a standard 5-40 inch-series machine screw for use in mechanical assemblies, electrical enclosures, control panels, and equipment housings that require a fillister head slotted fastener conforming to ASME B18.6.3.

Installation Notes

Installation is performed by hand with a flat-blade screwdriver sized to the slotted head. Power down and de-energize any electrical enclosure or control panel before installing or removing fasteners. Avoid over-tightening, as small-diameter machine screws in this thread class are susceptible to thread stripping in softer base materials. Follow applicable NEC or equipment manufacturer guidelines when fastening components inside electrical enclosures.