S-97713A137 M20 DIN 609 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with 120,000 psi tensile strength for reliable performance in demanding applications
• Precise component alignment through 21mm shoulder diameter with tight tolerance control (0.002-0.015mm)
• Superior wear resistance provided by Rockwell C20 hardness steel construction
• Quick installation and removal with external hex drive and smooth head texture
• Secure thread engagement ensured by Class 6g thread fit and coarse 2.5mm pitch
• Extended service life through corrosion-resistant steel material and compliant surface treatments
• Industry-standard compatibility with DIN 609 specifications for consistent performance across applications

Professional Applications & Engineering Value

This M20x2.5 shoulder screw delivers critical engineering solutions for industrial assemblies requiring precise component positioning and robust fastening. The 45.5mm shoulder length provides accurate alignment in machinery, automotive, and manufacturing equipment, preventing component misalignment while the Class 6g thread fit ensures vibration-resistant connections. Manufactured from high-strength steel with Rockwell C20 hardness, this hex head shoulder screw withstands repetitive loading and harsh operating conditions. The external hex drive facilitates efficient installation in confined spaces, making it ideal for production lines where maintenance downtime must be minimized. Its metric coarse thread design offers superior resistance to loosening under dynamic loads, providing long-term reliability in heavy-duty applications.

Specification Summary & Compliance

This precision shoulder screw features M20x2.5 metric coarse threads with Class 6g thread fit tolerance and 30.5mm thread length. The shoulder component maintains 21mm diameter with tight tolerance control (0.002-0.015mm) and 45.5mm shoulder length (-1 to 0mm tolerance). Manufactured to DIN 609 specifications and compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring both dimensional precision and regulatory compliance for global industrial applications.