S-90269A528 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 316 Stainless Steel and Black Oxide finish, ideal for harsh industrial environments and chemical exposure
- Precise component alignment enabled by the 6mm shoulder with controlled diameter tolerance for smooth pivot and bearing applications
- High mechanical strength delivering 70,000 PSI tensile and 35,000 PSI shear strength for reliable performance under heavy loads
- Secure, non-slip installation with knurled head and 2.5mm hex socket drive preventing tool slippage during tightening
- Accurate thread engagement ensured by Class 5g6g metric thread fit, reducing the risk of cross-threading in assembly
- Durable surface protection through Rockwell B79 hardness, maintaining integrity in high-wear applications
- Global compliance assurance meeting RoHS 3 and REACH standards for safe use in regulated industries
Professional Applications & Engineering Value
This M4 shoulder screw is engineered to address critical alignment and corrosion challenges in precision assemblies. The 316 Stainless Steel construction, combined with a Black Oxide finish, provides exceptional resistance to chemicals, moisture, and oxidation, making it suitable for marine, food processing, and pharmaceutical equipment. The knurled head and hex socket drive ensure secure fastening in confined spaces, while the precisely machined shoulder acts as a reliable spacer or pivot point in machinery, reducing wear on moving parts. Its Class 5g6g thread fit guarantees consistent engagement, minimizing assembly errors and enhancing the longevity of high-stress industrial systems.
Specification Summary & Compliance
The screw features an M4 x 0.7mm coarse thread with Class 5g6g tolerance for precise fit, a shoulder diameter of 5 mm (tolerance: -0.072 to -0.01 mm), and shoulder length of 6 mm (tolerance: 0 to 0.25 mm). It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental and safety standards are met for industrial use.
