S-90317A205 M5 x 12 mm JIS B 1188-D Stainless Steel Pan Head Phillips Screws with Internal-Tooth Lock Washer
Stainless Steel Pan Head Phillips Screws with Internal-Tooth Lock Washer
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Washer & Nut
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior vibration resistance with integrated internal-tooth lock washer that maintains secure fastening in high-motion environments
- Exceptional corrosion resistance thanks to 18-8 stainless steel construction and passivated surface treatment
- High mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for demanding applications
- Reliable thread engagement through Class 6g tolerance coarse threads ensuring consistent performance
- Easy installation and removal with Phillips No. 2 drive that provides efficient torque transfer
- Full-threaded design delivers maximum grip length and uniform stress distribution
- Regulatory compliance meeting JIS B 1188-D standards and environmental regulations including RoHS and REACH
Professional Applications & Engineering Value
These M5 rounded head screws with lock washers provide critical vibration-resistant fastening solutions for industrial machinery, automotive assemblies, and electronic enclosures. The 18-8 stainless steel material combined with passivated finish ensures long-term corrosion protection in harsh environments, while the internal-tooth lock washer design prevents loosening under dynamic loads. The coarse thread configuration with Class 6g tolerance enables quick installation and reliable performance in various materials. These fully threaded metric screws are engineered to maintain joint integrity in applications where vibration and thermal cycling would compromise standard fasteners, making them ideal for heavy-duty industrial equipment and precision assemblies requiring consistent clamping force.
Specification Summary & Compliance
This M5 x 0.8mm pitch x 12mm length screw features Class 6g thread fit according to metric standards with fully threaded design. The assembly includes an integrated internal-tooth lock washer (10mm OD, 0.6mm thickness) manufactured from matching 18-8 stainless steel with passivated finish. Product conforms to JIS B 1188-D specifications and demonstrates compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial applications.
