S-93985A304 1/4"-20 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 416 stainless steel construction, ideal for harsh industrial environments
- Precise component alignment with Class 2A thread fit and controlled shoulder diameter tolerance (-0.001" to 0")
- Exceptional mechanical strength delivering 120,000 psi tensile strength for heavy-duty applications
- Optimized torque transmission through hex socket drive design preventing tool slippage
- Reliable dimensional stability with Rockwell C26 hardness maintaining performance under stress
- Simplified assembly process with UNC coarse threads enabling faster installation
- Global compliance assurance meeting RoHS 3 and REACH environmental standards
Professional Applications & Engineering Value
This 416 stainless steel shoulder screw delivers critical engineering solutions where precise axial positioning and rotational stability are paramount. The 5/16" shoulder diameter with tight tolerance control ensures perfect alignment in assemblies, eliminating component wobble in machinery, automation systems, and precision instruments. The 1/4"-20 UNC coarse thread with Class 2A fit provides secure fastening while accommodating minor misalignments, significantly reducing assembly time in high-volume production. The hex socket head design allows for high-torque installation in confined spaces, making it ideal for robotics, aerospace components, and medical device manufacturing where reliability and precision are non-negotiable.
Specification Summary & Compliance
Manufactured to exacting standards with Class 2A thread fit and precise shoulder diameter tolerance of -0.001" to 0". Features UNC coarse threading (1/4"-20) with 7/16" thread length and 1/2" shoulder length. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe usage across global markets. Mechanical properties include Rockwell C26 hardness and 120,000 psi tensile strength for guaranteed performance in demanding applications.
