S-96477A132 M4 x 20 mm JIS B 1111 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
- Enhanced corrosion resistance through zinc plating, extending service life in demanding industrial environments
- Superior holding power with 60,000 psi tensile strength and Rockwell B71 hardness for reliable, vibration-resistant connections
- Precision thread engagement with Class 6h fit and coarse 0.7mm pitch for faster installation and reduced cross-threading risk
- Optimized flush mounting featuring 90° countersink angle and standard flat head profile for seamless surface integration
- Global compliance assurance meeting JIS B 1111 specifications and RoHS 3 directives for international project compatibility
- Universal drive compatibility with No. 2 JIS drive style accommodating standard industrial screwdrivers
- Full-thread design maximizing grip length and load distribution across the entire 20mm shaft
Professional Applications & Engineering Value
These M4 metric flat head screws deliver critical performance advantages in machinery assembly, electrical enclosures, and automotive components where surface flushness and vibration resistance are paramount. The zinc-plated steel construction provides essential corrosion protection against industrial atmospheres and incidental moisture exposure. Engineered with JIS B 1111 standard compliance, these fasteners ensure precise dimensional consistency with their Class 6h thread fit and coarse thread spacing, significantly reducing installation time while preventing loosening under dynamic loads. The fully threaded design combined with 60,000 psi tensile strength creates dependable connections that maintain integrity in high-stress applications, from production equipment to structural frameworks requiring reliable metric fasteners.
Specification Summary & Compliance
This flat head screw features M4 x 0.7mm coarse thread with Class 6h thread fit precision and 20mm fully threaded length. Manufacturing adheres to JIS B 1111 standard specifications with 90° countersink angle and No. 2 JIS drive compatibility. The product meets RoHS 3 (2015/863/EU) compliance requirements and demonstrates 60,000 psi tensile strength with Rockwell B71 hardness certification for quality-assured performance in industrial applications.
