S-90269A913 M20 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments like marine or chemical processing.
• Enhanced durability and wear resistance from the black oxide finish, which also provides a sleek, non-reflective appearance.
• Precise alignment and secure component mounting thanks to the 24mm shoulder diameter with tight tolerance control (-0.072 to -0.01 mm).
• High mechanical strength with 70,000 psi tensile and 35,000 psi minimum shear strength, ensuring reliable performance under heavy loads.
• Easy installation and removal using a standard 12 mm hex key, combined with a knurled head for improved grip during manual handling.
• Accurate and secure thread engagement with M20x2.5 coarse threads and Class 5g6g fit, reducing the risk of cross-threading.
• Compliance with international standards including ISO 7379, RoHS 3, and REACH, ensuring safety and environmental responsibility.

Professional Applications & Engineering Value

This M20x2.5 metric shoulder screw is engineered to address critical alignment and load-bearing challenges in industrial settings. Made from 316 stainless steel and featuring a black oxide finish, it offers exceptional resistance to corrosion and oxidation, making it suitable for applications in machinery, automotive assemblies, and outdoor equipment. The 24mm shoulder diameter with precise tolerances ensures components are accurately positioned, reducing wear and misalignment. The hex socket drive and knurled head facilitate quick installation in confined spaces, while the coarse thread design enhances grip in softer materials. Ideal for pivots, axles, and spacers, this screw delivers long-term reliability and reduces maintenance needs in demanding environments.

Specification Summary & Compliance

This shoulder screw adheres to ISO 7379 standards, with a Class 5g6g thread fit for consistent performance. Key dimensions include a shoulder diameter of 24 mm (tolerance: -0.072 to -0.01 mm) and shoulder length of 40 mm (tolerance: 0 to 0.25 mm). It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), meeting environmental and safety regulations for industrial use.