S-90269A125 M4 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and chemical exposure.
• Precise alignment and pivot function ensured by the 5 mm diameter shoulder with controlled diameter and length tolerances.
• High-strength fastening with a tensile strength of 70,000 psi and a minimum shear strength of 35,000 psi for reliable load-bearing applications.
• Secure, non-slip installation provided by the knurled socket head and 2.5 mm hex drive, reducing tool slippage.
• Consistent and reliable thread engagement due to the Class 5g6g thread fit, ensuring predictable assembly performance.
• Compliance with major environmental regulations, being RoHS 3 and REACH compliant for use in regulated industries.
• Durable, long-lasting performance supported by a Rockwell B79 hardness rating, resisting wear and deformation.

Professional Applications & Engineering Value

This M4 shoulder screw is engineered to address critical alignment and pivot challenges in industrial applications. The 316 stainless steel material offers exceptional resistance to corrosion, making it suitable for machinery, marine equipment, and chemical processing plants where exposure to moisture and aggressive substances is common. The shoulder diameter of 5 mm provides a precise unthreaded bearing surface, which acts as a pivot or spacer, reducing wear on components and ensuring accurate assembly. The coarse M4x0.7mm thread with a Class 5g6g fit allows for quick and secure fastening, minimizing the risk of cross-threading in high-volume production. Combined with the knurled socket head and 2.5 mm hex drive, this screw delivers reliable, tool-friendly installation, enhancing efficiency and reducing downtime in automated or manual assembly lines.

Specification Summary & Compliance

This shoulder screw features a metric M4x0.7mm coarse thread with a Class 5g6g thread fit for standard tolerance. The shoulder diameter is 5 mm with a tolerance of -0.072 to -0.01 mm, and the shoulder length is 4 mm with a tolerance of 0 to 0.25 mm, ensuring precise dimensional control. Manufactured from 316 stainless steel, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, adhering to environmental and safety standards for industrial fasteners.