S-90269A558 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 or outdoor environments.
- Exceptional mechanical strength with 70,000 PSI tensile and 35,000 PSI shear strength for reliable performance under high stress.
- Precise alignment and pivot function enabled by the 20mm shoulder with controlled diameter tolerance for smooth rotational movement.
- Easy installation and removal using the standard hex socket drive, reducing assembly time and tool wear.
- Accurate and secure threading with Class 5g6g thread fit, ensuring consistent engagement and vibration resistance.
- Durable and long-lasting construction with Rockwell B79 hardness, maintaining integrity through repeated use.
- Compliant with global regulations including RoHS 3 and REACH, making it suitable for international industrial markets.
Professional Applications & Engineering Value
This M4 shoulder screw is engineered to address common industrial challenges such as misalignment, wear, and corrosion in machinery. The 316 stainless steel material, combined with a black oxide finish, provides excellent resistance to chemicals and moisture, extending service life in demanding settings like automotive assemblies, precision instruments, and marine equipment. The 20mm shoulder length acts as a precise spacer or pivot, reducing stress on threaded sections and preventing component shift. With a hex drive for secure torque application and coarse thread pitch for quick fastening, it enhances assembly efficiency while ensuring reliable performance in high-vibration environments.
Specification Summary & Compliance
This shoulder screw features M4 x 0.7mm metric coarse threads with a Class 5g6g thread fit for standard tolerance, ensuring compatibility with metric components. The shoulder diameter tolerance is -0.072 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, providing precise dimensional control. Manufactured to common industrial standards, it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental suitability for global supply chains.
