S-90265A316 M8 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and reducing maintenance frequency.
• Precise component alignment enabled by the 100mm shoulder with tight diameter tolerance, minimizing assembly play and vibration.
• High-strength performance offering 70,000 psi tensile strength and 45,000 psi shear strength for reliable load-bearing in demanding applications.
• Enhanced torque transmission and grip from the knurled socket head and 5mm hex drive, preventing tool slippage during installation.
• Accurate and secure threading with Class 5g6g fit and coarse M8x1.25mm pitch for faster assembly and consistent engagement.
• Durable and long-lasting due to Rockwell B83 hardness, resisting wear and deformation under operational stress.
• Global compliance assurance meeting ISO 7379 standards, RoHS 3, and REACH, ensuring safety and regulatory acceptance.

Professional Applications & Engineering Value

This M8 shoulder screw is engineered to address critical alignment and durability challenges in industrial applications such as machinery assemblies, pivoting mechanisms, and precision instruments. The 18-8 stainless steel material provides excellent resistance to rust and corrosion, extending service life in humid or chemical-exposed settings. The 100mm shoulder length acts as a precise spacer or pivot, reducing the need for additional bushings and simplifying design. Combined with the knurled socket head and 5mm hex drive, it ensures secure fastening with high torque capability, minimizing the risk of stripping. The coarse thread pitch and Class 5g6g thread fit facilitate quick installation while maintaining tight tolerances, making it a reliable choice for engineers seeking efficiency and performance in metric fastener solutions.

Specification Summary & Compliance

This shoulder screw features an M8x1.25mm metric thread with Class 5g6g tolerance for precise fit. The shoulder diameter is 10mm with a tolerance of -0.072 to -0.01 mm, and shoulder length is 100mm with a 0 to 0.25 mm tolerance. It is manufactured in compliance with ISO 7379 specifications and adheres to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring it is free from hazardous substances and suitable for global industrial use.