S-91287A421 M20 x 90 mm ISO 4017, DIN 933 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
- Exceptional corrosion resistance from 18-8 stainless steel construction, ideal for demanding industrial environments
- High tensile strength of 100,000 psi ensures reliable performance under heavy loads and stress
- Coarse 2.5mm pitch threading provides faster installation and reduced risk of cross-threading
- Full threading along the 90mm length offers maximum grip and adjustability in deep applications
- Precise Class 6g thread fit guarantees consistent, secure fastening with minimal play
- External hex drive and hex head design allows for high-torque application with standard tools
- Compliance with major international standards including ISO 4017/DIN 933 ensures quality and interchangeability
Professional Applications & Engineering Value
This M20 hex head screw is engineered to solve critical challenges in industrial assembly and heavy machinery. The 18-8 stainless steel material provides excellent resistance to rust and corrosion, making it suitable for harsh environments, including outdoor and chemical-exposed settings. Its fully threaded design and coarse metric thread with a 2.5mm pitch ensure quick, secure installation in thick materials, reducing assembly time and preventing thread stripping. The external hex drive facilitates high-torque tightening, which is essential for structural applications where vibration resistance is paramount. This metric hex bolt meets ISO 4017/DIN 933 specifications, offering reliability and consistency for global engineering projects.
Specification Summary & Compliance
This product adheres to ISO 4017 and DIN 933 standards, with a Class 6g thread fit ensuring precise dimensional accuracy. It is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming its safety and environmental responsibility. The screw features a metric M20 thread size, 2.5mm coarse pitch, right-hand thread direction, and 90mm length, all manufactured to meet rigorous industrial specifications.
