S-92981A335 M8 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 load-bearing capacity with 140,000 psi tensile strength and Rockwell C32 hardness for reliable performance in demanding applications.
- Enhanced corrosion resistance provided by the black oxide finish, extending service life in various industrial environments.
- Precise component alignment ensured by the 45mm shoulder with tight length tolerance (0 to 0.25 mm), reducing assembly errors.
- Secure and stable fit due to the Class 5g6g thread fit and 10mm shoulder diameter with controlled tolerance, minimizing loosening under vibration.
- Easy installation and removal with the 5mm hex socket drive, allowing for high torque application in confined spaces.
- Guaranteed dimensional consistency through compliance with ISO 7379 standards, ensuring interchangeability and reliability.
- Safe for regulated industries as it is RoHS 3 and REACH compliant, meeting strict environmental and health standards.
Professional Applications & Engineering Value
This M8 shoulder screw is engineered from alloy steel to address critical challenges in precision machinery and automation systems. The 45mm shoulder length provides a stable pivot or bearing surface, essential for accurate alignment in assemblies like rotating shafts, linkages, and guide mechanisms. The coarse 1.25mm pitch thread and Class 5g6g fit ensure quick assembly and reliable holding power, reducing the risk of thread stripping in high-vibration environments. Combined with the black oxide finish, it offers resistance to rust and wear, making it ideal for industrial equipment, automotive jigs, and packaging machinery where durability and precision are paramount.
Specification Summary & Compliance
This shoulder screw features an M8x1.25mm coarse thread with Class 5g6g thread fit and precise shoulder diameter tolerance of -0.072 to -0.01 mm. It is manufactured in accordance with ISO 7379 specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material reliability for global industrial use.