EFB-Elektronik Parafuso de orelhas com fenda, UNC 4-40, 44 mm de comprimento, aço niquelado (29501.1)

The EFB-Elektronik EGP Knurled Head Screw with Slot (model 29501.1) is a high-quality fastener designed for secure mounting in electronics, IT enclosures, and rack systems. Featuring a UNC 4-40 thread and a 44mm overall length, this screw combines a slotted knurled head for easy manual tightening with a durable nickel-plated steel construction for long-lasting performance.

Advantages

This knurled head screw offers excellent grip for tool-free installation, while the slot provides compatibility with standard screwdrivers for additional torque. The nickel plating ensures corrosion resistance and a professional silver-tone finish, making it ideal for visible applications in server racks and network cabinets.

Suitable for

• Rack mounting of servers, switches, and patch panels
• Securing panels and covers in IT enclosures
• General-purpose fastening in electronic assemblies
• Applications requiring a compact, low-profile screw with a 4-40 UNC thread

Key specifications

• Product Type: Screw
• Screw Type: Knurled Head Screw
• Head Type: Slotted Knurled Head
• Drive Type: Slotted
• Thread Type: UNC (Unified National Coarse)
• Thread Size: No. 4-40
• Thread Pitch: 40 TPI
• Overall Length: 44 mm
• Head Diameter: 5.3 mm
• Material: Steel
• Finish: Nickel Plated
• Colour: Silver-tone
• Standard: ANSI/ASME B1.1
• Series: EGP
• Quantity per Pack: 1 piece

Recommendations

For optimal results, use with a compatible nut or threaded hole of UNC 4-40 size. Ensure the screw is tightened to the recommended torque for your application. This screw is part of the EFB-Elektronik EGP series, known for reliability in professional environments.