S-90278A734 M2.5 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• Precise alignment and reduced assembly play due to the 22mm shoulder with tight tolerances for stable component positioning
• High-strength performance offering 70,000 psi tensile strength and Rockwell B55 hardness for reliable load-bearing applications
• Secure, tamper-resistant fastening enabled by the 2mm hex socket drive for easy installation in confined spaces
• Accurate and durable thread engagement with Class 6g metric coarse threads ensuring consistent fit and vibration resistance
• Environmental compliance assurance meeting RoHS 3 and REACH standards for safe use in regulated industries
• Smooth, low-friction surface from the polished head texture, minimizing damage to mating components

Professional Applications & Engineering Value

This M2.5 shoulder screw is engineered to address critical alignment and durability challenges in precision assemblies. The 18-8 stainless steel material provides excellent resistance to corrosion and oxidation, making it suitable for electronics, medical devices, and automotive components exposed to moisture or chemicals. The 22mm shoulder length with precise tolerances acts as a reliable pivot or spacer, eliminating the need for additional bushings and reducing assembly complexity. Combined with the hex socket head and Class 6g thread fit, it ensures secure fastening in high-vibration environments, enhancing the longevity and reliability of machinery. Ideal for applications requiring repeatable accuracy, such as robotics, CNC fixtures, and optical equipment, this screw delivers consistent performance under mechanical stress.

Specification Summary & Compliance

This precision shoulder screw features a M2.5x0.45mm coarse thread with Class 6g tolerance for accurate fit, and a shoulder diameter of 3.5mm with tight tolerances (-0.025 to 0mm). The shoulder length is 22mm with a 0 to 0.05mm tolerance, ensuring precise dimensional control. Manufactured in accordance with metric standards, it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental safety for industrial and commercial use.