S-90269A546 M4 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh industrial environments and chemical exposure
• Precise component alignment through the 6mm diameter shoulder with tight diameter tolerance, ensuring accurate positioning in assemblies
• High mechanical strength delivering 70,000 psi tensile and 35,000 psi shear strength for reliable performance under load
• Consistent thread engagement with Class 5g6g metric thread fit, providing secure fastening and vibration resistance
• Easy installation in confined spaces using the 3mm hex socket drive, allowing high torque application without stripping
• Enhanced durability with Rockwell B79 hardness, maintaining structural integrity through repeated use
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global market acceptance

Professional Applications & Engineering Value

This precision shoulder screw solves critical alignment challenges in industrial machinery, automation systems, and precision instruments. The 316 Stainless Steel composition provides exceptional resistance to chemicals, saltwater, and extreme temperatures, making it ideal for food processing, marine, and pharmaceutical applications. The 4mm shoulder length with controlled tolerances acts as a precise locating dowel, eliminating component misalignment while the M4x0.7 coarse thread ensures rapid assembly. The socket head design with hex drive accommodates high torque requirements in space-constrained environments, preventing cam-out and damage to fastener heads. This engineering solution reduces maintenance frequency and improves equipment reliability across demanding industrial applications.

Specification Summary & Compliance

This metric shoulder screw features M4x0.7 coarse threads with Class 5g6g thread fit per ISO standards, ensuring consistent engagement. The shoulder diameter maintains -0.072 to -0.01 mm tolerance with shoulder length tolerance of 0 to 0.25 mm for precision alignment. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental compliance for international markets. The mechanical properties include 70,000 psi tensile strength and 35,000 psi minimum shear strength with Rockwell B79 hardness verification.