S-91305A008 M1.7 x 4 mm JCIS10-70 JIS Steel Flat Head Screws
JIS Steel Flat 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
- Superior corrosion resistance with zinc-plated steel construction, extending service life in demanding environments
- High-strength fastening with 60,000 psi tensile strength and Rockwell B71 hardness for reliable load-bearing applications
- Precision thread engagement with Class 4h fit and coarse 0.35mm pitch, ensuring secure installation and vibration resistance
- Optimized flush mounting thanks to the 90° countersink angle and flat head design, ideal for sleek industrial assemblies
- Enhanced drive stability with JIS No. 0 drive, reducing cam-out and improving torque transmission during installation
- Full-threaded design maximizes grip length and pull-out strength across the entire 4mm shaft
- Regulatory compliance with JCIS10-70 standards and RoHS 3, ensuring material safety and international acceptance
Professional Applications & Engineering Value
Engineered for precision industrial applications, these M1.7 metric flat head screws deliver exceptional performance in electronics, machinery, and compact assemblies. The zinc-plated steel material provides a durable barrier against oxidation, while the coarse pitch threading (0.35mm) and Class 4h thread fit prevent loosening under dynamic loads. The JIS No. 0 drive ensures compatibility with standard tools, reducing installation errors. With a 90° countersink angle, these screws sit flush, minimizing protrusion in space-constrained designs and enhancing aesthetic finishes. Fully threaded from head to tip, they offer uniform stress distribution, making them ideal for high-vibration environments where fastener integrity is critical.
Specification Summary & Compliance
This M1.7x4mm flat head screw adheres to precise dimensional standards, including Class 4h thread tolerance for consistent fit and metric coarse thread specifications. Manufactured in compliance with JCIS10-70 for quality assurance, it meets RoHS 3 (2015/863/EU) environmental regulations, confirming the absence of hazardous substances. The product is fully threaded with a right-hand thread direction and standard flat head profile, ensuring reliability across automated and manual assembly processes.
