S-91287A423 M20 x 70 mm ISO 4014, DIN 931 18-8 Stainless Steel Hex Head Screws
18-8 Stainless Steel Hex Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
- High tensile strength of 100,000 psi ensures reliable performance in demanding applications
- External hex drive design provides maximum torque transmission and secure installation
- Precision Class 6g thread fit guarantees consistent engagement and vibration resistance
- Partial threading configuration offers optimal clamping force distribution
- Coarse thread pitch (2.5mm) enables faster assembly and reduced cross-threading risk
- Environmental compliance with RoHS 3 and REACH standards for sustainable operations
Professional Applications & Engineering Value
This M20 hex head screw delivers exceptional engineering value through its 18-8 stainless steel composition and metric coarse threading. The material's inherent corrosion resistance makes it perfect for outdoor equipment, marine applications, and chemical processing facilities where moisture and corrosive elements are concerns. The external hex drive accommodates high-torque applications in heavy machinery assembly, structural steel connections, and industrial maintenance. With partial threading and Class 6g thread fit, these fasteners provide superior clamp load distribution while preventing loosening under vibration - critical for conveyor systems, automotive frames, and construction equipment. The combination of 100,000 psi tensile strength and standardized ISO 4014/DIN 931 dimensions ensures interchangeability and reliability across global manufacturing operations.
Specification Summary & Compliance
This hex head screw features M20 x 2.5mm coarse metric thread with Class 6g tolerance for precision fit, 70mm total length with 46mm minimum thread engagement, and complies with ISO 4014/DIN 931 manufacturing specifications. The fastener meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring restricted substance compliance for international industrial applications.
