Value Collection 0406ESP 4-40 Pan Head Slotted Machine Screw

Product Description

The VALUE COLLECTION 0406ESP is a 4-40 unified coarse-thread machine screw for general fastening applications in light fabrication, electronics, and equipment assembly. The pan head profile provides a low-profile, wide-bearing surface suited to thin sheet metal and enclosure work. The slotted drive accepts a standard flat-blade screwdriver. Constructed from steel with a zinc finish, the screw meets ASME B18.13a and SAE J82 dimensional and material standards. Length under head is 3/8 inch. This item is sold and ordered in multiples of 100 pieces.

This screw is a standard-duty inch-series fastener suited to residential and light commercial equipment panels, electrical enclosures, control boxes, and similar assemblies where a 4-40 thread is specified. It is commonly installed by electricians, HVAC technicians, and equipment maintenance technicians during panel assembly, component mounting, or field repairs. The zinc coating provides basic corrosion resistance for indoor and protected environments.

Key Features

• 4-40 unified coarse thread for standard inch-series tapped holes
• Pan head profile delivers a wide, flat bearing surface and low installed height
• Slotted drive for use with flat-blade screwdrivers and bit drivers
• Steel construction with zinc finish for basic corrosion resistance in dry or protected environments
• Meets ASME B18.13a and SAE J82 standards for dimensional consistency
• Minimum order quantity of 100 pieces ensures job-lot availability

Compatibility

Designed as a standard 4-40 inch-series machine screw for use in any application requiring a 4-40 tapped hole with a pan head, slotted-drive fastener per ASME B18.13a specifications.

Installation Notes

Power down and de-energize any equipment before fastening screws into electrical enclosures or control panels. Use a properly sized flat-blade screwdriver or slotted bit to avoid cam-out and head damage. Do not overtorque small-diameter machine screws; thread stripping is the primary failure mode at this thread size. Follow applicable NEC or equipment-manufacturer guidelines for panel assembly and fastener spacing.