Value Collection 3140MSP Pan Head Slotted Machine Screw

Product Description

The VALUE COLLECTION 3140MSP is a pan head slotted machine screw designed for general mechanical assembly and fastening applications. It features a 5/16-18 unified coarse thread and measures 2.5 inches in length under the head. The screw is manufactured from steel with a zinc finish that provides basic corrosion resistance in dry or mildly humid environments. Conforming to ASME B18.6.3 and SAE J82 standards, this fastener suits structural and non-structural assembly tasks in HVAC equipment, electrical enclosures, plumbing fixtures, and general trade work. It is installed without a washer and uses a standard slotted drive.

This screw is appropriate for residential and light commercial applications where a standard inch-measurement fastener is required. It is commonly used when securing panels, brackets, and equipment housings across HVAC, electrical, and plumbing trades. Its pan head profile provides a wide bearing surface and is well suited for through-hole and clearance-fit assemblies where a low-profile head is acceptable. Sold individually with a minimum order quantity of 10 pieces per order.

Key Features

• 5/16-18 unified coarse thread for secure engagement in standard tapped holes
• 2.5-inch length under head suits medium-depth fastening applications
• Pan head profile provides wide bearing surface without a washer
• Slotted drive compatible with standard flat-blade screwdrivers
• Zinc finish offers basic corrosion resistance for indoor and protected environments
• Meets ASME B18.6.3 and SAE J82 fastener standards

Compatibility

Designed as a standard inch-series machine screw for use in any application requiring a 5/16-18 threaded fastener with a pan head and slotted drive, including equipment panels, junction boxes, and mechanical brackets.

Installation Notes

Installation is performed with a flat-blade screwdriver sized to the slotted head. Ensure the mating tapped hole or nut is rated for 5/16-18 thread engagement before assembly. De-energize all electrical equipment and shut off relevant systems before fastening hardware inside live enclosures or pressurized assemblies. Do not overtighten; apply torque appropriate to the base material and thread engagement depth.