Hex Machine Screw Nuts in steel with a black zinc finish deliver durable, corrosion-resistant fastening for precise assemblies. Sized for 4/40 threads, these hex nuts are ideal for securing machine screws in electronics, control panels, robotics, and industrial equipment.

• Material: steel for strength and long-lasting performance
• Finish: black zinc plating for corrosion resistance and a sleek look
• Thread size: 4/40
• Shape: hex nut for easy driving with standard tools
• Applications: suitable for use with 4/40 machine screws in electronics enclosures, machinery, and hardware assemblies

Pair these steel hex nuts with matching 4/40 machine screws for secure, vibration-resistant installations. They provide reliable performance in both professional projects and DIY builds. Store in a dry place to maintain the finish.