S-91290A984 M22 x 80 mm DIN 912, ISO 4762 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional strength and reliability with Class 12.9 rating and 170,000 psi tensile strength for demanding industrial applications.
• Superior corrosion resistance provided by the black-oxide finish on alloy steel, extending service life in harsh environments.
• High hardness and wear resistance with Rockwell C37 hardness, ensuring dimensional stability and reduced thread deformation.
• Secure and efficient installation using the 17mm hex drive, allowing for high torque application without slippage.
• Optimized load distribution with a 33mm head diameter and standard socket head profile for enhanced clamping force.
• Reliable coarse thread engagement with M22x2.5mm right-hand threads, facilitating quick assembly and disassembly.
• Versatile partial threading (56mm thread on 80mm length) for precise positioning and secure fastening in varied material thicknesses.

Professional Applications & Engineering Value

This M22 socket head cap screw is engineered to address critical challenges in heavy machinery, automotive assembly, and construction equipment where high tensile strength and vibration resistance are paramount. The black-oxide alloy steel construction combats rust and wear, reducing maintenance downtime in corrosive or high-load environments. Its Class 12.9 strength class and Rockwell C37 hardness ensure the fastener withstands extreme stresses without failure, while the coarse metric thread (M22x2.5mm) provides robust holding power in cast iron or steel components. The 17mm hex drive and partially threaded design allow for precise torque control and secure fastening in blind holes or stacked materials, making it an ideal choice for high-stakes industrial applications requiring durability and compliance with international standards.

Specification Summary & Compliance

This socket head cap screw adheres to DIN 912 / ISO 4762 specifications, ensuring dimensional accuracy and interchangeability. Threads are manufactured to Class 5g6g fit for consistent engagement and load distribution. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances and safe for use in regulated industries. Manufactured from alloy steel with a black-oxide surface treatment, it meets the mechanical properties defined for Class 12.9 high-strength metric fasteners.