S-94387A268 M4 x 40 mm JIS B 1111 JIS Steel Pan Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel coating, extending service life in harsh industrial environments.
• High tensile strength of 60,000 psi ensures reliable performance under heavy loads and vibrations.
• Rockwell B71 hardness provides excellent durability and resistance to wear and deformation.
• Class 6g thread fit with coarse 0.7mm pitch enables quick and secure fastening, reducing assembly time.
• JIS B 1111 standard compliance guarantees precise dimensions and interchangeability in metric applications.
• Fully threaded design offers consistent grip along the entire length for enhanced holding power.
• JIS drive style with No. 2 drive size ensures compatibility with standard industrial tools for efficient installation.

Professional Applications & Engineering Value

These M4 metric screws with zinc-plated steel construction address common industrial challenges such as corrosion and mechanical failure. The coarse thread pitch and Class 6g tolerance provide rapid, secure fastening in materials like metal and plastic, minimizing cross-threading risks. With a rounded pan head and JIS drive, they offer easy tool engagement and a low-profile finish, ideal for machinery, automotive assemblies, and electrical enclosures where space and durability are critical. The fully threaded design ensures uniform stress distribution, enhancing joint integrity in high-vibration environments.

Specification Summary & Compliance

This screw adheres to JIS B 1111 standards with a thread fit of Class 6g and length tolerance of -0.15 to 0.15 mm for precise dimensional accuracy. It is fully compliant with RoHS 3 (2015/863/EU) regulations, ensuring environmental safety and suitability for global industrial use.