S-90269A912 M20 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction and black oxide finish, ideal for harsh industrial environments
• High mechanical strength with 70,000 psi tensile strength and Rockwell B79 hardness for reliable load-bearing performance
• Precision alignment and positioning ensured by the 24 mm shoulder diameter with tight tolerance control
• Secure hex drive engagement with 12 mm drive size and knurled head texture for non-slip installation
• Consistent thread performance with Class 5g6g thread fit and coarse 2.5 mm pitch for quick assembly
• Extended service life in demanding applications due to high minimum shear strength of 35,000 psi
• Global compliance assurance meeting ISO 7379 standards and environmental regulations including RoHS 3 and REACH

Professional Applications & Engineering Value

This M20 shoulder screw delivers exceptional engineering value in precision machinery and industrial equipment where alignment accuracy and corrosion resistance are critical. The 316 stainless steel material combined with black oxide finish provides superior protection against chemical exposure and atmospheric corrosion, significantly extending component lifespan in manufacturing environments. The precisely machined 24 mm shoulder diameter with controlled tolerances ensures perfect bearing surfaces and rotational alignment in assemblies, eliminating play and reducing wear. With its coarse metric thread and Class 5g6g thread fit, this shoulder bolt enables rapid installation while maintaining secure fastening in high-vibration applications. The combination of 70,000 psi tensile strength and 35,000 psi shear strength makes it ideal for heavy-duty applications including robotics, conveyor systems, and precision tooling where structural integrity cannot be compromised.

Specification Summary & Compliance

This precision shoulder screw features M20x2.5 metric thread with Class 5g6g thread fit tolerance, ensuring consistent threading performance. Critical dimensions include shoulder diameter of 24 mm with tolerance range of -0.072 to -0.01 mm and shoulder length of 110 mm with tolerance of 0 to 0.25 mm for precise component positioning. The component is manufactured to ISO 7379 specifications and demonstrates full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it suitable for global industrial applications with strict regulatory requirements.