S-91273A336 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
- Corrosion-resistant performance with 18-8 stainless steel construction, ideal for harsh industrial environments
- Precise alignment and smooth rotation thanks to the 19mm shoulder with tight diameter tolerance (-0.04 to -0.01 mm)
- High-strength durability with 70,000 psi tensile strength and Rockwell B55 hardness for demanding applications
- Secure and efficient installation using a standard 2 mm hex drive and knurled head for enhanced grip
- Reliable thread engagement with Class 5g6g metric coarse thread (M3 x 0.5mm) ensuring consistent fit
- Versatile industrial compliance meeting RoHS 3 and REACH regulations for safe, sustainable use
- Optimized for precision assemblies with controlled shoulder length tolerance (0 to 0.25 mm) reducing play and vibration
Professional Applications & Engineering Value
This M3 shoulder screw is engineered to address common challenges in precision machinery, such as misalignment and component wear. The 19mm shoulder length provides a stable bearing surface, allowing for accurate positioning of moving parts like gears and pulleys without additional bushings. Made from 18-8 stainless steel, it resists corrosion in humid or chemical-exposed settings, extending service life. The coarse metric thread (M3 x 0.5mm) and Class 5g6g fit ensure quick assembly and reliable holding power in automated systems. With a knurled head and hex drive, installation is secure and tool-slip resistant, making it ideal for high-vibration applications in robotics, electronics, and automotive assemblies.
Specification Summary & Compliance
This shoulder screw features a metric M3 x 0.5mm coarse thread with Class 5g6g tolerance for precise fit. The shoulder diameter is manufactured to -0.04 to -0.01 mm tolerance, and shoulder length tolerance is 0 to 0.25 mm, ensuring dimensional accuracy. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free of restricted substances for industrial and international use.
