S-90317A725 M4 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 with 18-8 stainless steel and passivated finish, ensuring long-term reliability in harsh industrial environments.
- Enhanced vibration resistance and secure locking thanks to the integrated internal-tooth lock washer, preventing loosening under dynamic loads.
- High tensile strength of 70,000 psi and Rockwell B70 hardness for dependable performance in demanding applications.
- Efficient installation and removal with the Phillips No. 2 drive, designed for compatibility with standard tools.
- Full threading and Class 6g coarse thread fit provide excellent grip and holding power in various materials.
- Compliance with JIS B 1188-D, RoHS 3, and REACH standards ensures product safety and regulatory adherence for global industrial use.
- Compact and robust design with a pan head and integrated washer, offering a low-profile, secure fastening solution.
Professional Applications & Engineering Value
This M4 metric screw is engineered to address common industrial challenges such as vibration-induced loosening and corrosion in machinery, electronics, and automotive assemblies. The 18-8 stainless steel construction, combined with a passivated finish, provides exceptional resistance to rust and chemicals, extending service life in humid or corrosive settings. The integrated internal-tooth lock washer bites into surfaces to maintain clamp load, reducing maintenance needs and downtime. With a coarse thread and full threading, it ensures quick, reliable installation and strong retention in soft or brittle materials. Ideal for industrial applications requiring precise, durable fasteners, this screw delivers consistent performance under stress while meeting international standards for safety and environmental compliance.
Specification Summary & Compliance
This product features precise metric threading with M4 x 0.7mm coarse thread and Class 6g tolerance for accurate fit. It is manufactured in accordance with JIS B 1188-D specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for use in regulated industries worldwide.
