S-90265A163 M8 ISO 7379 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 reduced wear thanks to the integral 20mm shoulder with controlled diameter tolerance.
• 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 5mm hex key, combined with a knurled head for improved grip during manual handling.
• Reliable thread engagement ensured by the M8x1.25 coarse thread with Class 5g6g fit, facilitating faster assembly and vibration resistance.
• Guaranteed quality and material safety through compliance with ISO 7379, RoHS 3, and REACH standards.

Professional Applications & Engineering Value

This M8 shoulder screw is engineered to address critical alignment and pivot point requirements in machinery. The 20mm shoulder length acts as a precise spacer or axle, preventing misalignment and reducing stress on the mating parts. Manufactured from 18-8 stainless steel, it offers excellent resistance to rust and corrosion, making it suitable for demanding environments like food processing, packaging, and automation equipment. The coarse thread (M8x1.25) ensures robust holding power and is less prone to cross-threading, while the socket head design allows for compact installations in tight spaces. This combination of features solves common issues of part wobble, premature wear, and assembly inefficiency in industrial applications.

Specification Summary & Compliance

This precision shoulder screw features an M8x1.25 thread with a Class 5g6g thread fit and a shoulder diameter tolerance of -0.072 to -0.01 mm. It is manufactured in accordance with the ISO 7379 standard and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity.