S-95446A110 4-40 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 360 Brass construction, ideal for harsh environments and electrical applications
- Precise component alignment ensured by the smooth, precisely toleranced shoulder for reduced assembly errors
- High-strength performance with 40,000 psi tensile strength and Rockwell B55 hardness for reliable, durable fastening
- Effortless installation and removal using the 5/64" hex socket drive, providing secure tool engagement in confined spaces
- Consistent thread engagement with UNC coarse threading and Class 2A fit for quick assembly and vibration resistance
- Regulatory compliance assurance meeting RoHS 3 and REACH standards for safe use in regulated industries
- Optimized for high-volume assembly with right-hand coarse threads that speed up installation processes
Professional Applications & Engineering Value
This 4-40 UNC brass shoulder screw delivers exceptional engineering value in applications requiring precise axial positioning and electrical conductivity. The 360 Brass material offers excellent corrosion resistance while the smooth shoulder with tight diameter tolerance provides accurate component alignment in assemblies, eliminating the need for additional spacing components. The hex socket drive allows for high-torque installation in confined spaces, making it ideal for precision instruments, electrical enclosures, and machinery where Class 2A thread fit ensures consistent performance. The combination of 40,000 psi tensile strength and UNC coarse threading provides reliable fastening in vibration-prone environments, reducing maintenance requirements and improving product longevity.
Specification Summary & Compliance
This shoulder screw features precision Class 2A thread fit with UNC coarse threading (4-40), ensuring consistent engagement and assembly efficiency. The shoulder maintains precise dimensional control with diameter tolerance of -0.002" to 0" and length tolerance of 0" to 0.003". Manufacturing complies with RoHS 3 (2015/863/EU) with exemption 6(c) for lead in copper alloy and REACH (EC 1907/2006) compliance, meeting current environmental regulations for industrial applications.
