S-90265A135 M4 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments.
• Precise component alignment ensured by the 30mm shoulder with controlled diameter tolerance for reduced assembly errors.
• High-strength performance offering 70,000 psi tensile strength and Rockwell B55 hardness for durable, reliable fastening.
• Secure, tamper-resistant installation via the 2.5mm hex socket drive and knurled head for enhanced grip during tightening.
• Accurate and consistent thread engagement with Class 5g6g thread fit and coarse M4 x 0.7mm pitch for quick assembly.
• Environmental and regulatory compliance meeting RoHS 3 and REACH standards for safe, sustainable use in global markets.
• Versatile industrial application due to metric threading and standard socket head profile, compatible with common tools and machinery.

Professional Applications & Engineering Value

This M4 shoulder screw is engineered to address critical alignment and durability challenges in precision assemblies. The 18-8 Stainless Steel material provides excellent resistance to rust and corrosion, making it suitable for industrial environments exposed to moisture or chemicals. The 30mm shoulder length acts as a precise pivot or spacer, minimizing part movement and wear in machinery, while the hex socket drive ensures secure, high-torque installation without stripping. With a coarse thread and Class 5g6g thread fit, it offers reliable fastening in applications like automotive components, electronic enclosures, and robotic systems, where vibration resistance and long-term performance are essential.

Specification Summary & Compliance

This shoulder screw features M4 x 0.7mm coarse metric threading with a Class 5g6g thread fit for precise tolerance. The shoulder diameter is 5mm with a tolerance of -0.072 to -0.01 mm, and the shoulder length is 30mm with a tolerance of 0 to 0.25 mm, ensuring consistent dimensional accuracy. Manufactured to industry standards, it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing it is free of hazardous substances and suitable for use in regulated sectors.