Electro Hardware 4508-M07-F16 Captive Screw 8-32 Unc

Product Description

The ELECTRO HARDWARE 4508-M07-F16 is a slotted drive captive screw designed to stay retained in an assembly even when fully disengaged from the mating thread. It features an 8-32 UNC thread form and a length under head of 25/32 inches. The fastener is machined from 18-8 stainless steel and left uncoated, making it a practical choice for applications where corrosion resistance and non-reactivity matter. Electricians, panel fabricators, and mechanical assemblers install this type of fastener in control enclosures, electronic chassis, and access panels where frequent removal and reattachment is required without the risk of a loose screw dropping into live components.

This captive screw is suited for use in light-gauge sheet metal assemblies, electrical enclosures, and equipment panels found in commercial and industrial settings. The 8-32 UNC thread is one of the most common machine screw sizes in North American panel and enclosure work, and the slotted drive is compatible with standard flat-blade screwdrivers and flat-tip bit drivers. Its 25/32-inch length under head accommodates typical panel and chassis wall thicknesses encountered in control board mounting and enclosure door hardware applications.

Key Features

• Captive design retains the screw in the panel or chassis even when fully backed out
• 8-32 UNC thread for compatibility with standard North American machine screw hardware
• 18-8 stainless steel construction provides corrosion resistance without coating
• Slotted drive works with flat-blade screwdrivers and standard bit drivers
• Uncoated finish eliminates concern over coating thickness affecting thread fit
• Meets QQ-S-763 stainless steel material standard

Compatibility

Designed as an OEM-style captive fastener for use in sheet metal enclosures, electrical panels, and equipment chassis that accept 8-32 UNC threaded hardware.

Installation Notes

Install and service performed by electricians, panel fabricators, or mechanical assemblers. Always de-energize and lock out the enclosure or panel before servicing captive fasteners in live electrical assemblies, following applicable NFPA 70E safe work practices. Use a properly sized flat-blade driver to avoid cam-out and head damage. Do not over-torque into thin sheet metal; confirm mating thread engagement depth is sufficient before applying full torque.