S-91273A465 M12 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and reducing replacement frequency.
• High tensile strength of 70,000 psi ensures reliable performance under heavy loads, minimizing the risk of fastener failure.
• Precision Class 5g6g thread fit provides consistent, secure engagement for vibration-resistant assemblies.
• Knurled head texture and hex socket drive offer superior grip and torque application, speeding up installation and reducing tool slippage.
• Accurate 12mm shoulder diameter with tight tolerance guarantees precise alignment and acts as a reliable pivot or spacer in assemblies.
• Compliance with RoHS 3 and REACH standards ensures environmental safety and global regulatory acceptance for your products.
• Rockwell B55 hardness provides excellent durability and wear resistance for long-term mechanical use.

Professional Applications & Engineering Value

This M12 shoulder screw is engineered to solve critical alignment and spacing challenges in demanding industrial applications. The 18-8 stainless steel material offers excellent corrosion resistance, making it suitable for machinery, automotive sub-assemblies, and electronic enclosures exposed to moisture or chemicals. The precision 12mm shoulder diameter acts as an integral locating dowel, eliminating the need for additional components and reducing assembly time. Paired with a hex socket drive and knurled head, it ensures secure, high-torque installation without cam-out, which is vital for maintaining joint integrity in high-vibration environments. Its 70,000 psi tensile strength and Class 5g6g thread fit provide reliable fastening in dynamic loads, enhancing the overall durability and safety of your mechanical designs.

Specification Summary & Compliance

This metric shoulder screw features an M12x1.75 coarse thread with a Class 5g6g thread fit for precise tolerance. The shoulder diameter is 12 mm with a tolerance of -0.04 to -0.01 mm, and the shoulder length is 12 mm with a tolerance of 0 to 0.25 mm, ensuring high dimensional accuracy. Manufactured from 18-8 stainless steel with a hardness of Rockwell B55, it meets a tensile strength of 70,000 psi and a minimum shear strength of 35,000 psi. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to stringent environmental and safety regulations.