S-90317A404 M2.5 x 6 mm ASME B18.13.1M Stainless Steel Pan Head Phillips Screws with External-Tooth Lock Washer
Stainless Steel Pan Head Phillips Screws with External-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 construction and passivated finish, ideal for harsh industrial environments.
- Reliable vibration resistance through the integrated external-tooth lock washer made from 410 stainless steel, preventing loosening under dynamic loads.
- High mechanical strength offering 70,000 psi tensile strength and Rockwell B70 hardness for durable, long-lasting assemblies.
- Effortless installation with Phillips No. 1 drive and fully threaded coarse pitch design, reducing assembly time and tool wear.
- Precise thread engagement ensured by Class 6g metric thread fit, providing consistent clamping force and alignment.
- Broad compliance with ASME B18.13.1M standards, RoHS 3, and REACH, ensuring safety and regulatory adherence.
- Optimized load distribution from the rounded pan head profile, minimizing surface damage and stress concentration.
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these M2.5 metric screws address critical challenges like vibration-induced failure and corrosion. The 18-8 stainless steel material, combined with a passivated finish, resists oxidation and chemical exposure, extending service life in electronics, machinery, and outdoor equipment. The external-tooth lock washer bites into mating surfaces, maintaining clamp load under cyclic stresses, while the coarse thread and fully threaded design enable quick fastening in various substrates. This rounded head screw with Phillips drive ensures reliable performance in automated or manual assembly lines, reducing maintenance needs and downtime.
Specification Summary & Compliance
This fastener features a Class 6g thread fit per metric standards, ensuring dimensional accuracy for consistent performance. It complies with ASME B18.13.1M manufacturing specifications and is verified as RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting strict environmental and safety regulations for global industrial use.
