S-98451A123 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 and electrical conductivity from 360 Brass material, ideal for demanding industrial environments
- Precise component alignment and reduced assembly time with 16mm shoulder length and tight diameter tolerance
- High-strength performance under load with 40,000 psi tensile strength and Rockwell B55 hardness
- Secure, reliable fastening ensured by Class 6g thread fit and coarse 0.7mm pitch
- Easy installation in confined spaces with 2.5mm hex socket drive and smooth head texture
- Long-term durability and consistent performance from precisely manufactured shoulder and thread geometry
- Compliance with global environmental standards including RoHS 3 and REACH for responsible sourcing
Professional Applications & Engineering Value
This precision shoulder screw delivers exceptional value in mechanical assemblies requiring exact component positioning and rotational control. The 360 Brass construction offers excellent corrosion resistance and electrical properties, making it ideal for electrical enclosures, instrumentation, and marine applications. The 16mm shoulder length with precise diameter tolerance provides accurate alignment for gears, pulleys, and linkages, eliminating the need for additional bushings. The M4 x 0.7mm coarse thread with Class 6g fit ensures reliable engagement in various materials, while the hex socket drive allows for high-torque installation in space-constrained applications. These metric shoulder screws solve critical alignment and wear issues in precision machinery, automotive systems, and electronic devices.
Specification Summary & Compliance
This M4 shoulder screw features Class 6g thread fit with 0.7mm coarse pitch, ensuring standard metric compatibility. The shoulder maintains precise dimensions with diameter tolerance of -0.025 to 0 mm and length tolerance of 0 to 0.05 mm. Manufacturing follows standard metric specifications with RoHS 3 (2015/863/EU) compliance under exemption 6(c) for lead in copper alloy and full REACH (EC 1907/2006) compliance, meeting current environmental regulations for industrial components.
