S-90317A111 M3 x 5 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 corrosion resistance thanks to 18-8 stainless steel construction and passivated finish, ensuring long-term reliability in harsh environments.
- Exceptional vibration resistance provided by the integrated internal-tooth lock washer, preventing loosening under dynamic loads.
- High mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for demanding industrial applications.
- Reliable and precise fastening with Class 6g thread fit and coarse M3 x 0.5mm thread, ensuring easy assembly and secure hold.
- Optimized drive engagement via Phillips No. 2 drive and pan head design, offering efficient installation with standard tools.
- Full-threaded design for maximum grip along the entire 5mm length, enhancing load distribution and joint integrity.
- Compliance with international standards including JIS B 1188-D, RoHS 3, and REACH, guaranteeing quality and environmental safety.
Professional Applications & Engineering Value
This M3 pan head screw is engineered to address critical challenges in industrial assembly, such as vibration-induced loosening and corrosion. The 18-8 stainless steel material, combined with a passivated finish, provides excellent resistance to rust and chemical exposure, making it ideal for electronics, machinery, and outdoor equipment. The integrated internal-tooth lock washer bites into mating surfaces, maintaining clamp load under severe vibrations. With a coarse metric thread and Phillips drive, it ensures quick, reliable installation in high-volume production lines, reducing downtime and improving operational efficiency.
Specification Summary & Compliance
This screw features precise Class 6g thread fit and fully threaded M3 x 0.5mm coarse pitch design, manufactured to JIS B 1188-D specifications. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards. The lock washer, with 6.5mm OD and 0.45mm thickness, is made from matching 18-8 stainless steel and passivated for consistent performance.
