S-94387A231 M3 x 40 mm JIS B 1111 JIS Steel Pan Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding environments
• Exceptional mechanical strength with 60,000 psi tensile strength and Rockwell B71 hardness for reliable load-bearing performance
• Precision threading consistency with Class 6g fit and coarse 0.5mm pitch ensuring secure fastening and vibration resistance
• Optimized drive engagement featuring JIS No. 2 drive style for reduced cam-out and efficient installation
• Full 40mm threading provides maximum grip length and uniform stress distribution across connected components
• Regulatory compliance assurance meeting JIS B 1111 standards and RoHS 3 directives for global quality and safety requirements
• Versatile pan head design with 5.5mm diameter offering low-profile installation and enhanced surface contact

Professional Applications & Engineering Value

These M3 pan head screws deliver critical performance advantages for industrial assembly applications where vibration resistance and environmental durability are paramount. The zinc-plated steel construction provides essential corrosion protection for machinery, electrical enclosures, and automotive components exposed to moisture or harsh operating conditions. With fully threaded coarse pitch design and Class 6g tolerance, these metric fasteners ensure rapid installation and secure clamping force in sheet metal, plastic assemblies, and equipment frames. The JIS drive system offers superior torque transmission compared to standard Phillips, reducing tool slippage and production downtime. Engineered to JIS B 1111 specifications, these screws maintain dimensional consistency for replacement parts and new designs across international manufacturing operations.

Specification Summary & Compliance

This M3 x 40mm pan head screw features precision metric coarse threading with 0.5mm pitch and Class 6g thread fit per ISO standards. Manufacturing tolerances include length variation of -0.15 to 0.15 mm for consistent dimensional accuracy. The fastener meets JIS B 1111 mechanical and dimensional requirements, with full compliance to RoHS 3 (2015/863/EU) environmental directives. Material certification confirms zinc-plated steel construction with right-hand threading and fully threaded shank configuration.