S-93856A153 M4 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments.
• Precise alignment and secure positioning thanks to the shoulder diameter of 4mm with tight tolerance control.
• High-strength performance offering 70,000 psi tensile strength and 35,000 psi shear strength for demanding applications.
• Easy installation and removal with the hex socket drive and knurled head for enhanced grip.
• Reliable thread engagement ensured by the Class 5g6g thread fit and coarse pitch for quick assembly.
• Durable and long-lasting with Rockwell B55 hardness, reducing wear and maintenance needs.
• Compliance with environmental standards, including RoHS 3 and REACH, for safe and sustainable use.

Professional Applications & Engineering Value

This M4 shoulder screw is engineered to address common industrial challenges such as misalignment and component wear in machinery. Made from 18-8 stainless steel, it provides excellent resistance to rust and corrosion, making it suitable for applications in automotive, electronics, and precision equipment. The hex socket drive and knurled head ensure secure fastening in tight spaces, while the Class 5g6g thread fit and coarse pitch enable rapid, reliable assembly. With a shoulder diameter of 4mm and tight length tolerance, it offers stable support for rotating parts, reducing vibration and extending service life in high-stress environments.

Specification Summary & Compliance

This shoulder screw features a metric thread with M4 x 0.7mm coarse pitch and Class 5g6g thread fit for precise dimensional accuracy. The shoulder diameter tolerance is -0.072 to -0.01 mm, and shoulder length tolerance is ±0.05 mm, ensuring consistent performance. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting industry standards for safety and environmental responsibility.