S-91273A437 M8 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and extended service life.
• Precise component alignment and pivot points ensured by the 60mm shoulder with a tight ±0.25mm length tolerance.
li>High-strength performance with a tensile strength of 70,000 psi and Rockwell B55 hardness for reliable load-bearing applications.
• Secure and easy installation using a standard 4mm hex key drive and a knurled head for improved grip.
• Reliable thread engagement with a Class 5g6g thread fit and coarse M8x1.25 thread for robust fastening in various materials.
• Environmental and regulatory compliance, meeting RoHS 3 and REACH standards for safe and sustainable use.
• Versatile right-hand thread design compatible with standard metric components for broad application across industries.

Professional Applications & Engineering Value

This M8 shoulder screw is engineered to address critical alignment and rotational requirements in demanding assemblies. The 60mm shoulder length with minimal tolerance provides a precise bearing surface, reducing wear and preventing misalignment in machinery, automation systems, and pivoting mechanisms. Manufactured from 18-8 stainless steel, it offers excellent resistance to rust and corrosion, making it suitable for applications in manufacturing, automotive, and electronics where environmental factors are a concern. The coarse M8x1.25 thread and Class 5g6g fit ensure quick assembly and secure fastening, while the 4mm hex drive and knurled head facilitate easy installation and removal, even in confined spaces. This combination of precision, material quality, and design makes it an ideal choice for engineers seeking durability and reliability in industrial shoulder bolt applications.

Specification Summary & Compliance

This precision metric shoulder screw adheres to standard metric dimensions, including an M8x1.25 coarse thread with a Class 5g6g thread fit for consistent performance. The shoulder diameter is 8 mm with a tolerance of -0.04 to -0.01 mm, and the shoulder length is 60 mm with a tolerance of 0 to 0.25 mm, ensuring high dimensional accuracy. It is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for use in regulated industrial and commercial environments without hazardous substances.