S-90269A209 M3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh environments and extended service life.
• High mechanical strength offering 70,000 psi tensile strength and 35,000 psi minimum shear strength for reliable load-bearing in demanding applications.
• Precise alignment and smooth rotation enabled by the 22mm shoulder with controlled diameter tolerance, reducing wear on mating parts.
• Easy and secure installation with a hex socket drive and knurled head for improved grip and torque application without slippage.
• Accurate and durable threading with M3x0.5 coarse pitch and Class 5g6g fit, ensuring consistent fastening and resistance to loosening.
• Compliance with environmental regulations, being RoHS 3 and REACH compliant for safe use in various industrial sectors.
• Optimized for industrial automation and machinery, thanks to its robust Rockwell B79 hardness and standard socket head profile for repeated use.

Professional Applications & Engineering Value

This M3 shoulder screw is engineered to address critical alignment and durability challenges in industrial applications. The 316 Stainless Steel material provides excellent resistance to corrosion and chemicals, making it suitable for environments exposed to moisture, acids, or high temperatures. The 22mm shoulder length with precise diameter control ensures accurate positioning of components like gears, pulleys, and linkages, minimizing misalignment and reducing wear. The coarse pitch metric thread (M3x0.5) and Class 5g6g thread fit offer reliable fastening with high vibration resistance, while the hex socket drive and knurled head facilitate easy installation in confined spaces. Ideal for use in automation equipment, precision instruments, and machinery assemblies, this screw enhances operational reliability and reduces maintenance needs.

Specification Summary & Compliance

This metric shoulder screw features an M3x0.5 coarse pitch thread with Class 5g6g thread fit for precise engagement. The shoulder diameter is 4 mm with a tolerance of -0.072 to -0.01 mm, and the shoulder length is 22 mm with a tolerance of 0 to 0.25 mm, ensuring consistent dimensional accuracy. Manufactured from 316 Stainless Steel with a hardness of Rockwell B79, it meets high-strength requirements. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting safe and environmentally responsible industrial use.