S-93856A282 M8 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ensuring long-term durability in harsh industrial environments.
• Precise alignment and smooth rotation due to the accurately machined shoulder with tight diameter tolerance, reducing wear on mating parts.
li>High strength and reliability with a tensile strength of 70,000 psi and Rockwell B55 hardness, suitable for demanding mechanical applications.
• Easy installation and removal using a standard 5 mm hex key, combined with a knurled head for improved grip during manual handling.
• Consistent thread performance with Class 5g6g thread fit and M8x1.25mm coarse pitch, providing secure fastening and vibration resistance.
• Versatile shoulder length options from 50 to 99.75 mm, allowing customization for various assembly spacing requirements.
• Compliance with environmental standards including RoHS 3 and REACH, ensuring safe use in regulated industries.

Professional Applications & Engineering Value

This M8 shoulder screw is engineered to address critical alignment and load-bearing challenges in precision machinery, automation systems, and fixturing applications. The 18-8 Stainless Steel material offers excellent resistance to corrosion and oxidation, making it ideal for environments exposed to moisture or chemicals. The hex socket drive and knurled head texture facilitate quick assembly and disassembly, reducing downtime in production lines. With a Class 5g6g thread fit and coarse pitch thread, it ensures reliable fastening under dynamic loads and vibrations, while the precisely toleranced shoulder maintains component alignment, minimizing wear and extending service life in high-stress industrial settings.

Specification Summary & Compliance

This shoulder screw features a metric M8x1.25mm coarse thread with Class 5g6g thread fit per ISO standards, ensuring dimensional accuracy and interchangeability. The shoulder diameter tolerance is -0.072 to -0.01 mm, and shoulder length tolerance is -0.05 to 0.05 mm for precise fit. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for use in environmentally conscious and regulated industries without hazardous substances.