S-91273A327 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, ideal for harsh industrial environments
- Precise component alignment ensured by the 11mm shoulder with controlled tolerances for stable assembly
- High torque transmission from the knurled hex socket head, reducing slippage during installation
- Excellent mechanical strength with 70,000 psi tensile and 35,000 psi shear strength for demanding applications
- Reliable thread engagement due to Class 5g6g thread fit and coarse M3 x 0.5mm pitch for quick assembly
- Durable performance backed by Rockwell B55 hardness, resisting wear and deformation
- Environmental compliance with RoHS 3 and REACH standards, ensuring safe use in regulated industries
Professional Applications & Engineering Value
This M3 shoulder screw is engineered to address critical alignment and durability challenges in precision assemblies. The 18-8 stainless steel material provides inherent corrosion resistance, making it suitable for machinery exposed to moisture or chemicals. The 11mm shoulder length with tight tolerances acts as a precise pivot or spacer, reducing wear on moving parts in applications like rotating shafts, gears, and electronic enclosures. The knurled hex socket head ensures efficient torque transfer, minimizing tool wear and installation errors. With a coarse thread pitch and Class 5g6g thread fit, it offers quick, secure fastening in automated production lines, enhancing assembly speed and reliability for industrial equipment manufacturers.
Specification Summary & Compliance
The screw features a Class 5g6g thread fit per metric standards, ensuring dimensional accuracy for the M3 x 0.5mm coarse thread. Shoulder diameter tolerance is -0.04 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, supporting precise engineering requirements. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to environmental and safety standards for industrial components.
