S-90265A186 M3 ISO 7379 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, ideal for harsh industrial environments
- Precise component alignment enabled by the 50mm shoulder with tight diameter tolerance for reduced assembly vibration
- High-strength performance with 70,000 psi tensile strength and 45,000 psi shear strength for demanding applications
- Enhanced torque transmission through the knurled socket head and 2mm hex drive, preventing tool slippage
- Reliable thread engagement with Class 5g6g metric coarse threads ensuring consistent fastening in high-vibration settings
- Global compliance readiness meeting ISO 7379 standards and RoHS 3/REACH environmental regulations
- Optimized durability from Rockwell B83 hardness, maintaining integrity under repeated mechanical stress
Professional Applications & Engineering Value
This M3 shoulder screw delivers critical engineering solutions where precise shaft positioning and rotational stability are paramount. The 50mm shoulder length acts as a built-in spacer, eliminating the need for additional bushings in assemblies like rotating shafts, pivots, and gear mechanisms. Manufactured from 18-8 stainless steel, it resists oxidation and chemical exposure in automotive, packaging machinery, and electronic enclosures. The knurled socket head with 2mm hex drive ensures maximum torque application without cam-out, while the coarse thread pitch and Class 5g6g thread fit provide vibration-resistant fastening. This combination directly addresses alignment inaccuracies, reduces component wear, and extends service life in precision-driven industries.
Specification Summary & Compliance
This shoulder screw features M3 x 0.5mm coarse pitch threads with Class 5g6g tolerance for consistent fit. The shoulder diameter is machined to -0.072 to -0.01 mm tolerance, and shoulder length is held within 0 to 0.25 mm tolerance. It conforms to ISO 7379 manufacturing specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards.
