Electro Hardware 4503-M07-F16 Captive Screw 6-32 Unc

Product Description

The ELECTRO HARDWARE 4503-M07-F16 is a slotted-drive captive screw designed to stay retained in an assembly even when fully disengaged from the mating thread. It carries a 6-32 UNC thread and a 17/32-inch length under the head. The body is 18-8 stainless steel left uncoated, giving it solid corrosion resistance in panel and enclosure applications. The head measures 9/32 inches in diameter and 1/8 inch in height. Technicians use captive screws where repeated access is required and loose hardware is a hazard, such as electrical enclosures, HVAC control panels, and equipment access covers.

This captive screw is suited for light-duty panel fastening in residential and commercial applications. Typical install scenarios include securing access panels on HVAC air handlers, electrical junction boxes, and control board covers where the fastener must remain attached to the panel after removal. The 6-32 UNC thread is a common size in sheet-metal and electronics enclosure work. The uncoated 18-8 stainless steel construction holds up in indoor and mildly humid environments without additional treatment.

Key Features

• Captive design keeps the screw retained in the panel when disengaged, preventing dropped hardware
• 6-32 UNC thread for compatibility with standard tapped sheet-metal and enclosure panels
• 17/32-inch length under head suits typical panel and cover-plate stack-ups
• 18-8 stainless steel construction provides corrosion resistance without plating
• Slotted drive works with standard flat-head screwdrivers and panel-service tools
• Meets QQ-S-763 standard for stainless steel fasteners

Compatibility

Designed as a direct-replacement or new-installation captive fastener for panels and enclosures tapped to accept 6-32 UNC screws, including HVAC control board covers, electrical enclosure access panels, and similar sheet-metal assemblies requiring a retained fastener.

Installation Notes

Installation is performed by electricians, HVAC technicians, or panel assemblers using a standard slotted screwdriver. Always de-energize and lock out the equipment before servicing any panel or enclosure that houses live electrical components. Do not overtighten in thin sheet-metal - snug to panel contact is sufficient. Verify the mating tapped hole is clean and free of debris before engaging the thread.