S-97307A118 M4 DIN 923 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and reducing maintenance costs.
• High tensile strength of 70,000 psi ensures reliable performance under heavy loads, minimizing the risk of fastener failure.
• Precise Class 6g thread fit guarantees smooth assembly and secure fastening, reducing installation time and improving joint integrity.
• Low-profile socket head design allows for compact installations in space-constrained applications without compromising drive engagement.
• Rockwell B55 hardness provides excellent wear resistance, extending the screw's service life in high-cycle operations.
• Tight shoulder tolerances (e.g., diameter: -0.03 to 0 mm) ensure accurate alignment and reduced vibration in precision assemblies.
• Compliance with DIN 923, RoHS 3, and REACH assures quality, safety, and environmental standards for global industrial use.

Professional Applications & Engineering Value

This M4 shoulder screw with a 0.7mm coarse pitch and 18-8 stainless steel material is engineered to address critical alignment and durability challenges in industrial settings. The 6mm shoulder length and precise 5.5mm shoulder diameter provide stable pivoting and locating functions, reducing component wear in machinery, automation systems, and precision instruments. Its low-profile socket head and right-hand thread facilitate easy installation in tight spaces, while the Class 6g thread fit ensures consistent performance in high-vibration environments. Ideal for applications requiring metric shoulder screws with reliable thread fit, this screw enhances assembly accuracy and longevity in sectors like robotics, automotive, and electronics manufacturing.

Specification Summary & Compliance

This shoulder screw adheres to DIN 923 standards, with a Class 6g thread fit for metric coarse threads (M4 x 0.7mm). It features precise dimensional tolerances, including a shoulder diameter of 5.5 mm (-0.03 to 0 mm) and shoulder length of 6 mm (tolerance: 0.07 to 0.15 mm). The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets environmental and safety requirements for industrial use.