S-90278A506 M4 Shoulder Screws
Shoulder Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
- Precise component alignment enabled by the 40mm shoulder with tight tolerances for reduced assembly errors
- High-strength performance with 70,000 psi tensile strength and Rockwell B55 hardness for reliable load-bearing applications
- Secure, tamper-resistant installation using the 2.5mm hex socket drive that prevents tool slippage
- Consistent thread engagement with Class 6g fit and coarse M4 x 0.7mm thread for quick, stable fastening
- Environmental regulation compliance meeting RoHS 3 and REACH standards for safe, sustainable use
- Smooth head finish minimizes friction and wear during rotational movements in machinery
Professional Applications & Engineering Value
This M4 shoulder screw delivers critical engineering value in precision assemblies where exact alignment and rotational control are paramount. Manufactured from 18-8 stainless steel, it resists oxidation and chemical exposure in automotive, robotics, and conveyor systems. The 40mm shoulder length with precise tolerances acts as a dependable pivot or spacer, eliminating bushing needs and reducing part count. The hex socket head ensures high torque application without stripping, while the coarse metric thread and Class 6g fit provide vibration-resistant fastening. These attributes solve common issues like misalignment, corrosion-induced failure, and assembly inefficiency, making it a trusted precision shoulder screw for OEMs and maintenance teams.
Specification Summary & Compliance
The screw features a Class 6g thread fit per metric standards, with shoulder diameter tolerance of -0.025 to 0 mm and shoulder length tolerance of 0 to 0.05 mm for high dimensional accuracy. It conforms to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from restricted hazardous substances. The manufacturing adheres to industry-accepted specifications for metric coarse threads and stainless steel material properties.
