Value Collection 0503MSR 5-40 Round Head Slotted Machine Screw

Product Description

The VALUE COLLECTION 0503MSR is a 5-40 threaded machine screw designed for light-duty mechanical assembly applications. It features a round head profile with a slotted drive and measures 3/16 inches in length under the head. Manufactured from steel with a zinc finish, this screw meets ASME B18.6.3 and SAE J82 standards, making it a reliable choice for precision fastening in instrumentation, electrical enclosures, small appliances, and light mechanical equipment. Installation is straightforward with a standard flathead screwdriver. These screws are sold in multiples of 100, with a minimum order quantity of 100 pieces per order.

This screw is suited for residential and commercial applications where a small-diameter, fine-thread fastener is required. Common use cases include securing panels, terminal covers, electrical components, and similar assemblies where a 5-40 thread form is specified. The slotted round head sits flush-proud against the mating surface without requiring a countersunk hole, making it a practical choice for thin-gauge sheet metal, plastic housings, and PCB mounting brackets used by electricians, HVAC technicians, and general equipment assemblers.

Key Features

• 5-40 thread size provides a fine-pitch engagement suitable for thin materials and precision assemblies
• Round head profile distributes clamping load over a wider bearing surface without countersinking
• Slotted drive accepts standard flathead screwdrivers for quick installation and removal
• Steel construction with zinc finish offers corrosion resistance in typical indoor environments
• Meets ASME B18.6.3 and SAE J82 standards for dimensional and mechanical consistency
• Sold in multiples of 100 to support production and service stock requirements

Compatibility

Designed as an OEM-style replacement or general-purpose fastener for any assembly specifying a 5-40 slotted round head machine screw per ASME B18.6.3 or SAE J82.

Installation Notes

Installation is performed with a standard flathead screwdriver sized to match the slotted head. Always verify thread engagement depth in the mating component before applying torque to avoid stripping the 5-40 thread form. De-energize any electrical equipment before fastening or removing screws in live panels or enclosures. Follow applicable NEC or equipment manufacturer guidelines when securing electrical components.