S-91273A399 M6 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 thanks to 18-8 stainless steel construction, ideal for harsh industrial environments.
- High mechanical strength and durability with 70,000 psi tensile strength and Rockwell B55 hardness for reliable performance under load.
- Precise alignment and secure positioning enabled by the 4mm shoulder with tight diameter tolerance (-0.04 to -0.01 mm).
- Easy and secure installation with a knurled hex socket head and 3mm hex drive, reducing tool slippage.
- Accurate and consistent thread engagement ensured by Class 5g6g thread fit and M6x1mm coarse pitch for quick assembly.
- Compliance with environmental regulations, being RoHS 3 and REACH compliant for safe use in regulated industries.
- Versatile industrial application due to metric dimensions and robust design suitable for machinery and equipment assembly.
Professional Applications & Engineering Value
This M6 shoulder screw is engineered to address common challenges in precision assembly, such as misalignment and component wear. The 18-8 stainless steel material offers excellent corrosion resistance, extending service life in moist or chemical-exposed settings. Its knurled hex socket head provides a firm grip for efficient torque application, minimizing installation errors. The 4mm shoulder with controlled tolerances ensures accurate part location, reducing vibration-induced failures in rotating machinery, automotive systems, and industrial equipment. With a coarse thread pitch and Class 5g6g thread fit, it facilitates rapid, secure fastening in high-volume production lines, enhancing overall engineering efficiency and reliability.
Specification Summary & Compliance
The screw features precise dimensional control, including a Class 5g6g thread fit per metric standards, shoulder diameter tolerance of -0.04 to -0.01 mm, and shoulder length tolerance of 0 to 0.25 mm. It adheres to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental safety and regulatory conformity for industrial applications.
