S-90269A956 M33 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction and black oxide finish, ideal for harsh industrial environments.
• Exceptional mechanical strength offering 70,000 PSI tensile and 35,000 PSI minimum shear strength for reliable, high-load applications.
• Precision alignment and smooth rotation ensured by the 130mm shoulder with tight diameter tolerance and standard shoulder fit.
• Secure, non-slip installation provided by the knurled head and 17mm hex drive for easy, stable tool engagement.
• Accurate and reliable threading with Class 5g6g thread fit and M33x3.5 coarse pitch for quick assembly and strong holding power.
• Broad industry compliance meeting ISO 7379 standards and RoHS 3/REACH regulations for safe, global use.
• Durable, long-lasting performance backed by Rockwell B79 hardness, resisting wear and deformation under stress.

Professional Applications & Engineering Value

This M33 shoulder screw is engineered to address critical challenges in precision machinery and heavy-duty assemblies. Made from 316 stainless steel with a black oxide finish, it provides excellent resistance to corrosion, chemicals, and high-moisture conditions, reducing maintenance needs in sectors like marine, chemical processing, and outdoor equipment. The 130mm shoulder length and precise shoulder diameter tolerance ensure accurate component alignment and smooth rotational movement, preventing misalignment and reducing wear in pivoting or rotating mechanisms. Combined with a Class 5g6g thread fit and coarse M33x3.5 metric thread, it enables fast, secure fastening in high-vibration environments, making it a reliable choice for industrial automation, conveyor systems, and structural frameworks where durability and precision are paramount.

Specification Summary & Compliance

This shoulder screw features a Class 5g6g thread fit with M33x3.5 coarse threads, a shoulder diameter of 36 mm (tolerance: -0.072 to -0.01 mm), and shoulder length of 130 mm (tolerance: 0 to 0.25 mm). It is manufactured in compliance with ISO 7379 and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safety and regulatory adherence for industrial use.