S-90265A636 M4 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
- Exceptional corrosion resistance with 18-8 stainless steel construction and black oxide finish, ideal for harsh industrial environments.
- High load-bearing capacity with 70,000 psi tensile strength and 45,000 psi shear strength for reliable performance in demanding applications.
- Precise alignment and smooth rotation due to the smooth, accurately machined shoulder with controlled diameter and length tolerances.
- Secure, tamper-resistant installation using the 3 mm hex socket drive, ensuring tight fastening in confined spaces.
- Consistent thread engagement and durability with Class 5g6g thread fit and coarse M4x0.7 thread pitch for quick assembly and reduced wear.
- Long-term reliability supported by Rockwell B83 hardness, resisting deformation under stress.
- Global compliance and safety meeting ISO 7379 standards, RoHS 3, and REACH regulations for environmentally responsible sourcing.
Professional Applications & Engineering Value
This M4 shoulder screw is engineered to address common industrial challenges such as misalignment, vibration loosening, and corrosion in machinery. The 18-8 stainless steel material, combined with a black oxide finish, provides superior resistance to rust and chemicals, making it suitable for automotive, aerospace, and electronic assembly applications. The precisely machined 25mm shoulder length acts as a pivot or spacer, ensuring accurate component positioning and reducing wear on moving parts. With its hex socket drive and coarse thread pitch, it enables quick, secure installation in high-vibration environments, enhancing operational efficiency and minimizing maintenance downtime in precision engineering systems.
Specification Summary & Compliance
This shoulder screw features a Class 5g6g thread fit with M4x0.7 coarse threads, ensuring dimensional accuracy per ISO 7379 standards. The shoulder diameter tolerance ranges from -0.072 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, providing reliable performance in precision assemblies. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental safety and material integrity for industrial use.
