S-90265A203 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
- Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments.
- High mechanical strength offering 70,000 psi tensile and 45,000 psi shear strength for demanding applications.
- Precise component alignment enabled by the 50mm shoulder with tight diameter tolerance for reduced assembly errors.
- Secure and easy installation with a hex socket drive and knurled head for improved grip and torque application.
- Reliable thread engagement due to Class 5g6g thread fit and coarse 0.7mm pitch for quick, stable fastening.
- Long-term durability backed by Rockwell B83 hardness, resisting wear and deformation under load.
- Global compliance assurance meeting ISO 7379 standards and RoHS 3/REACH regulations for safe, quality use.
Professional Applications & Engineering Value
This M4 shoulder screw is engineered to address critical alignment and strength needs in precision assemblies. The 18-8 stainless steel material provides excellent resistance to rust and chemicals, making it suitable for automotive, machinery, and electronic enclosures exposed to moisture. The 50mm shoulder length acts as a precise pivot or spacer, minimizing part misalignment and reducing stress on the M4 x 0.7mm coarse thread. With a hex socket drive and knurled head, it ensures secure handling in tight spaces, enhancing assembly speed and reliability. Ideal for jigs, rotating shafts, and bearing mounts, this screw delivers consistent performance where dimensional accuracy and high tensile strength are paramount.
Specification Summary & Compliance
The screw features a Class 5g6g thread fit per metric standards, with shoulder diameter tolerance of -0.072 to -0.01 mm and shoulder length tolerance of 0 to 0.25 mm for precise manufacturing. It conforms to ISO 7379 specifications and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring environmental safety and regulatory adherence in industrial applications.
