S-93701A262 4-40 x 1/2" Steel Pan Head Torx Plus Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with black protective coating, extending service life in harsh environments and reducing maintenance costs.
• Superior torque transmission and reduced cam-out thanks to the Torx Plus IP10 drive, ensuring secure fastening and minimizing tool wear.
• High tensile strength of 40,000 psi combined with Rockwell B70 hardness for reliable performance under heavy loads and vibrations.
• Precise Class 3A thread fit for tight tolerances, ensuring smooth assembly and reducing the risk of cross-threading in critical applications.
• Coarse UNC threading and full threading provide quick installation and strong holding power in various materials.
• Rounded pan head design offers a low-profile, aesthetically pleasing finish while distributing clamp load effectively.
• Compliance with RoHS 3 and REACH standards ensures environmental safety and meets global regulatory requirements for industrial use.

Professional Applications & Engineering Value

These 4-40 UNC thread screws are engineered from black corrosion-resistant-coated steel to address common industrial challenges such as exposure to moisture, chemicals, and high-stress conditions. The Torx Plus drive (IP10/T10) enables higher torque application with minimal slippage, making them ideal for automated assembly lines and precision equipment where reliability is critical. With a coarse thread and Class 3A fit, they ensure fast, secure fastening in metals and plastics, reducing installation time and improving joint integrity. Commonly used in electronics enclosures, automotive components, and machinery, these rounded head screws deliver long-term durability and consistent performance, backed by a 40,000 psi tensile strength and robust Rockwell B70 hardness.

Specification Summary & Compliance

This product adheres to UNC thread standards with a Class 3A thread fit for precise dimensional accuracy. It features a right-hand thread direction, coarse thread spacing, and is fully threaded for uniform load distribution. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global industrial markets.