S-94361A343 5/16"-24 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
- Exceptional load-bearing capacity with 140,000 psi tensile strength for reliable performance in demanding applications
- Superior corrosion resistance provided by black oxide finish, extending service life in harsh industrial environments
- Precision thread engagement with Class 3A UNF fine threads ensuring secure fastening and vibration resistance
- Enhanced grip and handling through knurled head design, facilitating easier installation and removal
- Consistent dimensional accuracy with tight shoulder diameter and length tolerances for precise component alignment
- Durable alloy steel construction with Rockwell C32 hardness for long-term reliability and wear resistance
- Industry compliance assurance meeting RoHS 3 and REACH regulations for safe use in regulated environments
Professional Applications & Engineering Value
This alloy steel shoulder screw delivers critical engineering solutions for precision assembly applications where component alignment and rotational control are paramount. The Class 3A UNF fine threads provide superior clamping force and vibration resistance in machinery, automotive, and aerospace assemblies. The black oxide finish offers enhanced corrosion protection while maintaining dimensional stability. The precisely machined shoulder with tight tolerances (-0.004" to -0.002" diameter, -0.005" to 0.005" length) ensures accurate bearing surfaces and pivot points in rotating mechanisms. The combination of 140,000 psi tensile strength and Rockwell C32 hardness makes this socket head shoulder screw ideal for high-stress applications requiring repeated disassembly and reassembly without performance degradation.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 3A thread fit and UNF fine thread specifications (5/16"-24). Shoulder diameter maintained at 3/8" with tolerance of -0.004" to -0.002", while shoulder length measures 7/8" with tolerance of -0.005" to 0.005". Fully compliant with RoHS 3 (2015/863/EU) under exemption 6(a) for lead as an alloying element in steel and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and regulatory adherence for industrial applications.
