S-90263A131 M3 Shoulder Screws
Shoulder Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with 316 stainless steel construction and passivated finish, ideal for harsh industrial environments
- Precise component alignment thanks to the smooth 4mm diameter shoulder with tight tolerance (-0.025 to 0 mm)
- High mechanical strength delivering 70,000 psi tensile strength and Rockwell B79 hardness for demanding applications
- Accurate and reliable fastening ensured by Class 6g thread fit and M3 x 0.5mm coarse pitch metric threading
- Easy installation and removal with standard hex socket (2mm drive) enabling high torque application in confined spaces
- Consistent 25mm shoulder length with minimal tolerance (0 to 0.05 mm) for repeatable positioning in assemblies
- Environmental and regulatory compliance meeting RoHS 3 and REACH standards for safe industrial use
Professional Applications & Engineering Value
This M3 shoulder screw in 316 stainless steel with passivated finish addresses critical engineering challenges in precision assemblies. The 25mm shoulder length provides exact spacing and pivot points in machinery, while the Class 6g thread fit ensures vibration-resistant fastening in dynamic applications. Its hex socket drive allows for secure installation in tight spaces common in industrial equipment, automation systems, and electronic enclosures. The combination of corrosion-resistant material and precise shoulder diameter tolerance makes it ideal for applications requiring minimal clearance and long-term reliability, reducing maintenance needs and assembly errors.
Specification Summary & Compliance
This metric shoulder screw features M3 x 0.5mm coarse thread with Class 6g thread fit per ISO standards. Shoulder diameter tolerance is -0.025 to 0 mm, and shoulder length tolerance is 0 to 0.05 mm, ensuring precise fit in demanding applications. Manufactured from 316 stainless steel with passivated finish, it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting international environmental and safety standards for industrial components.
