S-94387A240 M4 x 8 mm JIS B 1111 JIS Steel Pan Head Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with zinc-plated steel construction for longer service life in demanding environments
• Superior holding power from fully threaded coarse pitch design ensuring reliable fastening in various materials
• Consistent drive engagement with JIS drive style providing secure tool fit and reduced cam-out risk
• High mechanical strength with 60,000 psi tensile strength and Rockwell B71 hardness for heavy-duty applications
• Precision thread fit with Class 6g tolerance ensuring smooth assembly and optimal thread engagement
• Broad industrial compatibility meeting JIS B 1111 standard for reliable performance in Asian market equipment
• Environmental compliance with RoHS 3 standards ensuring safe use in regulated industries

Professional Applications & Engineering Value

This M4 pan head screw delivers exceptional engineering value for industrial assembly applications where vibration resistance and corrosion protection are critical. The zinc-plated steel construction provides essential protection against environmental factors, while the fully threaded coarse pitch design ensures maximum holding power in metal, plastic, and composite materials. The JIS B 1111 standard compliance makes these metric screws ideal for machinery, electrical enclosures, and automotive components requiring Japanese industrial specifications. The combination of 60,000 psi tensile strength and Rockwell B71 hardness ensures reliable performance under dynamic loads, making these industrial screws suitable for high-stress applications where fastener failure is not an option.

Specification Summary & Compliance

This precision-engineered fastener features Class 6g thread fit with tight length tolerance of -0.15 to 0.15 mm, ensuring consistent performance across production runs. The metric thread specification (M4 x 0.7mm) follows international standards with right-hand coarse threading for efficient installation. Manufacturing complies with JIS B 1111 specifications for dimensional accuracy and mechanical properties. Environmental compliance includes RoHS 3 (2015/863/EU) certification, guaranteeing restricted substance-free construction for global market acceptance.