S-90323A441 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 18-8 stainless steel and passivated finish for long-lasting performance in harsh environments
- Precise alignment and smooth rotation due to controlled shoulder diameter tolerance (-0.025 to 0 mm) for reduced wear in assemblies
- High mechanical strength with 80,000 psi tensile strength and Rockwell B95 hardness to withstand heavy loads and vibrations
- Secure, low-profile installation using hex socket drive (2 mm) and low head design for space-constrained applications
- Reliable coarse thread engagement with M3x0.5 Class 6g thread fit for quick assembly and consistent clamping force
- Environmental compliance assurance meeting RoHS 3 and REACH standards for safe use in regulated industries
- Optimized shoulder length of 18 mm with tight length tolerance (0 to 0.05 mm) for accurate component positioning
Professional Applications & Engineering Value
This M3 shoulder screw delivers exceptional value in precision mechanical systems where alignment and durability are critical. The 18-8 stainless steel construction with passivated finish resists corrosion in industrial settings, while the precise shoulder fit ensures minimal radial play in rotating assemblies like bearings, gears, and linkages. The hex socket low head design allows for compact installations in machinery, automotive components, and electronic enclosures. With its Class 6g thread fit and coarse pitch, it enables rapid assembly and disassembly without compromising holding strength, reducing maintenance downtime and improving operational efficiency in industrial applications.
Specification Summary & Compliance
This metric shoulder screw features M3x0.5 coarse threads with Class 6g thread fit per ISO standards, ensuring dimensional accuracy. The shoulder diameter tolerance is -0.025 to 0 mm, and shoulder length tolerance is 0 to 0.05 mm for precise assembly. Manufactured from 18-8 stainless steel with a passivated finish, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance requirements for environmental safety.
