S-93856A272 M8 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and extended service life.
• High-strength performance with 70,000 psi tensile strength and Rockwell B55 hardness for reliable load-bearing in demanding assemblies.
• Precise location and alignment enabled by the 10mm shoulder diameter with tight tolerances, reducing component wear.
• Secure and efficient installation using the 5mm hex socket drive and knurled head texture for improved grip and torque application.
• Reliable coarse thread engagement with M8 x 1.25mm Class 5g6g thread fit, ensuring consistent fastening and vibration resistance.
• Broad application versatility with customizable shoulder lengths from 4mm to 49.75mm to fit various design requirements.
• Environmental and regulatory compliance meeting RoHS 3 and REACH standards for safe use in global markets.

Professional Applications & Engineering Value

This M8 shoulder screw is engineered to address critical alignment and pivot point challenges in industrial machinery, automation systems, and precision equipment. The 18-8 stainless steel material offers excellent resistance to rust and oxidation, making it suitable for washdown environments or outdoor applications. The hex socket head with knurled texture allows for high-torque installation without slippage, while the precisely machined shoulder diameter acts as a built-in spacer or bearing surface, eliminating the need for additional bushings. This design minimizes assembly time, reduces part count, and enhances overall mechanical stability in rotating assemblies, linkages, and fixturing applications where coarse thread engagement provides quick and secure fastening.

Specification Summary & Compliance

This metric shoulder screw adheres to ISO metric thread standards with an M8 x 1.25mm coarse thread and Class 5g6g thread fit for consistent dimensional accuracy. The shoulder diameter is manufactured to a tight tolerance of -0.072 to -0.01 mm, and shoulder length tolerance is maintained at -0.05 to 0.05 mm. It conforms to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and compliant for international industrial use.