S-91305A003 M1.6 x 4 mm JCIS10-70 JIS Steel Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in harsh industrial environments
• Exceptional mechanical strength with 60,000 psi tensile strength and Rockwell B71 hardness to withstand high-stress applications
• Precision thread engagement with Class 4h fit and fully threaded design ensuring reliable, vibration-resistant fastening
• Optimized flush mounting with 90° countersink angle and standard flat head profile for seamless surface integration
• Industry-standard compatibility with JIS No. 0 drive system for consistent tool engagement and installation efficiency
• Regulatory compliance assurance meeting JCIS10-70 specifications and RoHS 3 environmental standards
• Reliable coarse threading with M1.6 x 0.35mm metric configuration for quick assembly and reduced cross-threading risk

Professional Applications & Engineering Value

These M1.6 metric flat head screws deliver critical performance advantages in precision assembly applications where space constraints and surface finish requirements are paramount. The zinc-plated steel construction provides essential corrosion protection for electronics, instrumentation, and automotive components exposed to moderate environmental conditions. Engineered with Class 4h thread fit and fully threaded design, these fasteners eliminate play and maintain clamping force in vibration-prone assemblies. The 90° countersink angle ensures flush mounting in precisely machined countersunk holes, while the JIS No. 0 drive system guarantees secure tool engagement during installation. These industrial flat head screws are particularly valuable in compact electronic enclosures, precision mechanical assemblies, and applications requiring reliable fastening in confined spaces.

Specification Summary & Compliance

This M1.6 x 0.35mm pitch metric screw features Class 4h thread fit precision with coarse thread spacing and right-hand thread direction. Manufactured to JCIS10-70 specifications with dimensional accuracy including 2.4mm head diameter and 4mm length. Compliant with RoHS 3 (2015/863/EU) environmental regulations, ensuring restriction of hazardous substances in industrial applications.