S-90269A513 M4 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from 316 stainless steel with black oxide finish, ideal for harsh environments and extended service life.
• Precise component alignment and pivot points enabled by the 25mm shoulder with controlled diameter tolerance for reliable assembly.
• High-strength performance with 70,000 psi tensile strength and 35,000 psi minimum shear strength for demanding mechanical applications.
• Secure, non-slip installation thanks to the knurled head and 2.5 mm hex socket drive, preventing tool slippage.
• Consistent thread engagement ensured by the Class 5g6g thread fit and M4x0.7 coarse thread for quick assembly and vibration resistance.
• Environmental and regulatory compliance with RoHS 3 and REACH, making it safe for various industrial and export markets.
• Durable material integrity with a Rockwell B79 hardness, balancing toughness and machinability.

Professional Applications & Engineering Value

This M4 shoulder screw is engineered to address critical challenges in precision machinery, automation, and assembly systems. The 316 stainless steel construction combined with a black oxide finish provides exceptional resistance to corrosion, chemicals, and moisture, reducing maintenance in harsh industrial settings. The 25mm shoulder length acts as a precise spacer or pivot, minimizing misalignment and wear in moving parts. With its knurled head and hex socket drive, it ensures secure handling during installation, even in confined spaces. Ideal for use in robotics, conveyor systems, and electronic enclosures, this metric shoulder screw delivers reliable performance where dimensional accuracy and durability are paramount.

Specification Summary & Compliance

This shoulder screw features an M4x0.7 coarse metric thread with a Class 5g6g thread fit for standard tolerance applications. The shoulder diameter tolerance is -0.072 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, ensuring precise dimensional control. Manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, it meets stringent environmental and safety standards for industrial use.