S-94387A259 M4 x 25 mm JIS B 1111 JIS Steel Pan Head Screws
JIS Steel Pan Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Enhanced corrosion resistance with zinc-plated steel coating for prolonged service life in demanding environments.
- Superior holding power from 60,000 psi tensile strength and Rockwell B71 hardness, ensuring reliable fastening under stress.
- Efficient installation with JIS No. 2 drive and standard pan head design, reducing assembly time and tool slippage.
- Precise thread engagement due to Class 6g tolerance and M4 x 0.7mm coarse pitch, enabling quick, secure fits in various materials.
- Full-threaded design for maximum grip along the entire 25mm length, improving load distribution and pull-out resistance.
- Regulatory compliance with JIS B 1111 standards and RoHS 3, ensuring safety and international acceptance for industrial use.
- Consistent dimensional accuracy with tight length tolerance of -0.15 to 0.15 mm, minimizing fit issues in precision applications.
Professional Applications & Engineering Value
These M4 metric screws with zinc-plated steel construction address common industrial challenges like corrosion and vibration loosening. The coarse 0.7mm pitch threading and Class 6g thread fit allow for rapid assembly in metals, plastics, and composites, reducing labor costs while maintaining high-strength integrity. Ideal for machinery, automotive, and electrical enclosures, the rounded pan head and JIS drive provide a flush finish and secure torque transfer, preventing strip-out in high-cycle applications. This combination ensures durability and performance in industrial fastening where precision and reliability are critical.
Specification Summary & Compliance
This product adheres to JIS B 1111 specifications with Class 6g thread tolerance and dimensional accuracy, including a length tolerance of -0.15 to 0.15 mm. It meets RoHS 3 (2015/863/EU) compliance for environmental safety, supporting use in regulated industries. The metric thread with coarse spacing ensures compatibility with standard components, backed by rigorous manufacturing controls.
