Electro Hardware 4103M07F16 Captive Screw 4-40 Unc

Product Description

The ELECTRO HARDWARE 4103M07F16 is a slotted-drive captive screw designed for secure, retained fastening in assemblies where the screw must remain attached to the component after removal. Built from 18-8 stainless steel in an uncoated finish, this fastener offers solid corrosion resistance for light industrial and electronic enclosure applications. The 4-40 UNC thread with a 25/32-inch length under head suits standard low-clearance panel and chassis installations. A 5/16-inch head diameter and 3/16-inch head height keep the profile low while providing a positive slotted driver engagement. Certified to QQ-S-763, it meets material and dimensional standards commonly required in OEM and service assembly work.

This captive screw is suited for use in control panels, electronic enclosures, HVAC equipment chassis, and similar assemblies where technicians require repeated access without losing hardware. The 4-40 UNC thread size is a common fit in light-gauge sheet metal and PCB-mounted standoff applications. Trade professionals installing or servicing electrical enclosures, control boards, or equipment panels will find this fastener appropriate for applications demanding retained hardware and corrosion-resistant material.

Key Features

• 18-8 stainless steel construction meets QQ-S-763 material standard
• Captive design keeps screw retained in panel after removal for tool-free access cycles
• Slotted drive compatible with standard flat-blade screwdrivers
• 4-40 UNC thread standard suits common light-gauge panel and chassis applications
• Uncoated finish - no added plating that could affect dimensional tolerances
• Low-profile head at 3/16 inch height minimizes clearance requirements

Compatibility

Designed as an OEM-style captive screw replacement for assemblies using 4-40 UNC threaded hardware in light industrial, electronic, and HVAC control panel applications.

Installation Notes

Installation and removal require a flat-blade screwdriver sized for a slotted 4-40 fastener. De-energize any electrical enclosure or control panel fully before servicing retained hardware per applicable NEC guidelines. Do not overtighten into light-gauge sheet metal or PCB-mounted standoffs, as thread stripping can occur without a torque-limiting driver. Verify mating thread condition before reinstalling captive screws to avoid cross-threading.