S-91287A445 M20 x 120 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
- Exceptional corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
- High tensile strength of 100,000 psi ensures reliable performance under heavy loads and vibration
- Precise Class 6g thread fit guarantees smooth assembly and secure fastening in metric applications
- Partially threaded design provides superior clamping force and prevents loosening in dynamic conditions
- External hex drive with 30mm head allows for easy installation using standard tools and high torque application
- Compliance with ISO 4014 DIN 931 standards ensures interchangeability and quality consistency across global projects
- RoHS 3 and REACH compliant for environmentally responsible and safe use in regulated industries
Professional Applications & Engineering Value
This M20 hex head screw with coarse 2.5mm pitch thread is engineered to solve critical fastening challenges in heavy machinery, structural steelwork, and industrial equipment assembly. The 18-8 stainless steel material provides excellent resistance to rust and chemical exposure, extending service life in demanding environments like marine, chemical processing, and outdoor construction. Its partially threaded design concentrates clamping force precisely where needed, reducing stress concentration and preventing joint failure. Meeting ISO 4014 DIN 931 specifications, this screw ensures dimensional accuracy and compatibility with standard metric components, while the external hex drive facilitates quick installation and maintenance in tight spaces, making it a reliable choice for engineers prioritizing durability, compliance, and long-term performance.
Specification Summary & Compliance
This screw features M20 x 2.5mm coarse metric threading with Class 6g thread fit tolerance for precise engagement, a 120mm length with 46mm minimum thread length, and external hex drive with 30mm head width. Manufactured in accordance with ISO 4014 DIN 931 standards, it is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory adherence for industrial use.
