S-90278A739 M3.5 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, ensuring long-term reliability in harsh industrial environments
- Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B55 hardness for heavy-duty applications
- Precise component alignment through controlled shoulder diameter and length tolerances, reducing assembly errors
- Secure hex socket drive with 2.5mm hex key compatibility providing reliable torque transmission and reduced head stripping
- Optimized thread engagement with Class 6g thread fit ensuring consistent fastening performance
- Environmental compliance meeting RoHS 3 and REACH standards for global manufacturing requirements
- Right-hand coarse threading with M3.5x0.6mm configuration enabling quick installation in various materials
Professional Applications & Engineering Value
This precision shoulder screw delivers critical engineering value in applications requiring exact component positioning and rotational stability. The 18-8 stainless steel construction provides excellent corrosion resistance while maintaining high tensile strength for demanding environments. The 12mm shoulder length with precise diameter control serves as an accurate locating diameter in assemblies, eliminating the need for additional bushings or spacers. The hex socket drive allows for high-torque installation in confined spaces, making these metric shoulder bolts ideal for precision machinery, automation equipment, and electronic enclosures where vibration resistance and repeated disassembly are common requirements.
Specification Summary & Compliance
Manufactured to exacting standards with Class 6g thread tolerance and precise shoulder dimensions (shoulder diameter: 5mm with -0.025 to 0 mm tolerance, shoulder length: 12mm with 0 to 0.05 mm tolerance). The M3.5x0.6mm coarse thread configuration follows metric threading standards. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for use in restricted substance-sensitive applications.
