S-91287A116 M4 x 20 mm ISO 4017, DIN 933 18-8 Stainless Steel Hex Head Screws

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 load-bearing capacity and joint integrity
• Class 6g thread fit provides precise, secure fastening with minimal risk of cross-threading
• Fully threaded design offers maximum grip length and uniform stress distribution
• Coarse pitch threading enables quick installation and removal, reducing assembly time
• External hex drive allows for high-torque application with standard tools
• Compliance with ISO 4017 DIN 933 guarantees dimensional accuracy and international interoperability

Professional Applications & Engineering Value

This M4 hex head screw delivers exceptional performance in demanding industrial applications where corrosion resistance and mechanical strength are critical. Manufactured from 18-8 stainless steel, it effectively resists rust and chemical degradation in environments exposed to moisture, chemicals, or outdoor elements. The coarse pitch metric thread and Class 6g thread fit ensure rapid, reliable assembly with reduced risk of stripping, while the fully threaded design provides consistent clamping force across the entire 20 mm length. The external hex drive facilitates high-torque tightening with common wrenches, making it suitable for machinery, equipment assembly, and structural frameworks requiring durable, precision fasteners.

Specification Summary & Compliance

This screw features M4 x 0.7 mm coarse pitch threading with Class 6g tolerance as per ISO 4017 DIN 933 standards, ensuring dimensional precision and interchangeability. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming its suitability for use in regulated industries without hazardous substances.