S-90269A452 M1.6 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh or humid environments.
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B79 hardness for reliable, long-lasting performance.
• Secure and precise installation enabled by the 2mm hex socket drive and knurled head, preventing tool slippage.
• Accurate alignment and spacing provided by the 4mm shoulder length with controlled tolerance, ensuring consistent assembly fit.
• Robust thread engagement with Class 5g6g thread fit and coarse 0.35mm pitch for quick assembly and high vibration resistance.
• Compliance with strict environmental standards, being RoHS 3 and REACH compliant for safe and sustainable use.
• Dimensional precision with tight shoulder diameter and length tolerances, guaranteeing repeatable performance in automated or manual assembly.

Professional Applications & Engineering Value

This M1.6 shoulder screw in 316 Stainless Steel is engineered to address critical challenges in precision assemblies, such as in electronics, medical devices, and optical equipment. The 4mm shoulder length acts as a precise spacer or pivot, eliminating misalignment and reducing wear on moving parts. The hex socket drive and knurled head ensure secure, torque-resistant fastening in confined spaces, while the coarse thread pitch and Class 5g6g thread fit provide excellent resistance to loosening under dynamic loads. Its high tensile and shear strength supports demanding applications, and the superior corrosion resistance of 316 Stainless Steel ensures durability in aggressive environments, reducing maintenance needs and lifecycle costs.

Specification Summary & Compliance

This metric shoulder screw features a thread size of M1.6 with a 0.35mm coarse pitch and Class 5g6g thread fit for precise ISO-standard threading. The shoulder diameter is 3 mm with a tolerance of -0.072 to -0.01 mm, and shoulder length is 4 mm with a tolerance of 0 to 0.25 mm, ensuring high dimensional accuracy. Manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance standards, it is free of hazardous substances, making it suitable for global industrial and consumer applications.