S-90265A128 M4 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 environments and long-term reliability.
- Precise component alignment and smooth rotation due to the 5mm diameter shoulder with controlled tolerances.
- High mechanical strength and durability with a tensile strength of 70,000 psi and Rockwell B55 hardness for demanding applications.
- Secure and non-slip fastening enabled by the knurled socket head and 2.5mm hex drive for reliable torque transmission.
- Accurate and reliable thread engagement ensured by the Class 5g6g thread fit and M4 x 0.7mm coarse pitch for quick assembly.
- Compliance with major environmental regulations including RoHS 3 and REACH, ensuring safe and responsible sourcing.
- Versatile industrial use with a standard right-hand metric thread and 8mm shoulder length for various mounting and pivoting needs.
Professional Applications & Engineering Value
This M4 shoulder screw is engineered to solve critical alignment and wear challenges in industrial assemblies. The 18-8 Stainless Steel material provides excellent resistance to rust and corrosion, making it suitable for machinery, automotive, and electronic enclosures exposed to moisture or chemicals. The precision 5mm shoulder diameter acts as a pivot or spacer, reducing wear on moving parts and ensuring accurate component positioning. Combined with the Class 5g6g thread fit and coarse pitch, it allows for rapid and secure fastening in high-vibration environments. The knurled socket head with a hex drive offers superior grip, preventing tool slippage during installation and maintenance, thereby enhancing assembly efficiency and product longevity.
Specification Summary & Compliance
The screw features a Class 5g6g thread for precise metric threading, with a shoulder diameter tolerance of -0.072 to -0.01 mm and shoulder length tolerance of 0 to 0.25 mm, ensuring high dimensional accuracy. It is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety standards for industrial fasteners.
