S-90269A495 M4 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and chemical exposure
• Enhanced durability and wear resistance from the black oxide finish, providing long-lasting performance
• High-strength fastening with 70,000 psi tensile strength and 35,000 psi shear strength for reliable load-bearing applications
• Precise alignment and smooth rotation ensured by the 18mm shoulder with controlled diameter and length tolerances
• Secure, slip-resistant installation using the knurled hex socket head and 2.5mm drive for efficient torque transfer
• Accurate and reliable thread engagement with Class 5g6g metric coarse threads (M4 x 0.7mm) for consistent fit
• Compliance with environmental and safety standards, including RoHS 3 and REACH, for global industrial use

Professional Applications & Engineering Value

This M4 shoulder screw is engineered to address critical alignment and assembly challenges in precision machinery, automation systems, and rotating equipment. The 316 stainless steel material offers exceptional resistance to corrosion and oxidation, making it suitable for demanding environments like marine, chemical processing, and food-grade applications. The 18mm shoulder length with tight diameter tolerance provides a stable bearing surface, reducing wear on components and ensuring smooth rotational movement. Combined with the black oxide finish, it minimizes friction and extends service life. The hex socket drive and knurled head facilitate secure installation in confined spaces, while the Class 5g6g thread fit guarantees reliable fastening in high-vibration settings. This screw delivers consistent performance, reducing maintenance needs and downtime in industrial operations.

Specification Summary & Compliance

This shoulder screw features a metric M4 x 0.7mm coarse thread with Class 5g6g thread fit for precision tolerance. The shoulder diameter is 5 mm with a tolerance of -0.072 to -0.01 mm, and the shoulder length is 18 mm with a tolerance of 0 to 0.25 mm, ensuring accurate alignment. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious and regulated industrial applications.