S-90278A313 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 construction for long-lasting performance in harsh industrial environments
- Precise component alignment ensured by the 6mm shoulder diameter with tight tolerances for reduced vibration and wear
- High-strength reliability with 70,000 psi tensile strength and Rockwell B55 hardness for demanding mechanical applications
- Secure, slip-resistant fastening using the 2mm hex socket drive for easy installation in confined spaces
- Consistent thread engagement with Class 6g metric coarse threads (M3x0.5) for quick assembly and vibration resistance
- Environmental compliance assurance meeting RoHS 3 and REACH standards for safe use in regulated industries
- Optimized shoulder design providing stable bearing surfaces for precise mechanical positioning
Professional Applications & Engineering Value
These M3 shoulder screws deliver critical engineering value in applications requiring exact alignment and durable fastening. The 18-8 stainless steel construction provides excellent corrosion resistance for machinery exposed to moisture, chemicals, or outdoor conditions. The precision shoulder diameter (6mm with tight tolerances) acts as a reliable locating dowel, eliminating misalignment in assemblies while the socket head design with 2mm hex drive enables secure installation in space-constrained environments. Commonly specified in precision equipment, automation systems, and mechanical assemblies, these metric shoulder screws solve alignment challenges while offering the strength (70,000 psi tensile) needed for high-stress applications. The coarse thread pitch (M3x0.5) ensures rapid assembly and maintains integrity in vibrating environments.
Specification Summary & Compliance
This M3x0.5 shoulder screw features Class 6g thread fit per metric standards with 4mm thread length. The shoulder maintains precise dimensions: 6mm shoulder length (0 to +0.05mm tolerance) and 4mm shoulder diameter (-0.025 to 0mm tolerance). Manufactured from 18-8 stainless steel with Rockwell B55 hardness and 70,000 psi tensile strength. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for industrial use.
