S-91287A477 M20 x 170 mm ISO 4014, DIN 931 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 18-8 stainless steel construction, ideal for harsh industrial environments
• High tensile strength of 100,000 psi ensures reliable performance in heavy-duty applications
• Secure fastening with partial threading provides optimal grip and vibration resistance
• Precise Class 6g thread fit guarantees smooth installation and consistent engagement
• External hex drive design allows for easy installation and removal with standard tools
• Compliance with ISO 4014 / DIN 931 standards ensures dimensional accuracy and interchangeability
• RoHS 3 and REACH compliance meets environmental regulations for safe industrial use

Professional Applications & Engineering Value

This M20 hex head screw is engineered with 18-8 stainless steel to deliver exceptional corrosion resistance and durability in demanding settings such as construction, machinery assembly, and structural frameworks. The metric coarse thread (2.5 mm pitch) and partial threading design enhance clamping force and reduce the risk of loosening under dynamic loads. With an external hex drive and Class 6g thread fit, it ensures quick, reliable installation, minimizing downtime in industrial maintenance and production lines. Its compliance with ISO 4014 DIN 931 standards guarantees precise dimensions and consistent performance, making it a trusted choice for engineers seeking long-term fastener solutions.

Specification Summary & Compliance

This screw adheres to ISO 4014 DIN 931 specifications, featuring a Class 6g thread fit for metric coarse threading (M20 x 2.5 mm) and a partially threaded shank with a minimum thread length of 46 mm. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental safety and regulatory adherence for industrial applications.