S-90337A462 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 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments
- Precise component alignment through accurately machined shoulder with tight diameter and length tolerances
- High-strength performance delivering 70,000 psi tensile strength and Rockwell B55 hardness for demanding applications
- Space-saving low-profile design with socket head allowing flush mounting in confined spaces
- Reliable thread engagement with Class 2A UNC coarse threads ensuring consistent fastening performance
- Easy installation and maintenance using standard 5/32" hex drive tools for efficient assembly
- Environmental compliance assurance meeting RoHS 3 and REACH regulations for global market acceptance
Professional Applications & Engineering Value
This precision shoulder screw addresses critical alignment challenges in industrial machinery and precision equipment assemblies. The 18-8 stainless steel construction with passivated finish provides exceptional corrosion resistance, while the precisely machined shoulder diameter and length ensure accurate component positioning without additional bushings or spacers. The low-profile socket head design minimizes protrusion in compact assemblies, and the UNC coarse threads with Class 2A fit deliver reliable fastening in high-vibration environments. With 70,000 psi tensile strength, this shoulder screw maintains structural integrity in demanding applications from automation systems to precision instruments, reducing maintenance frequency and improving equipment longevity.
Specification Summary & Compliance
This 1/4"-20 UNC shoulder screw features Class 2A thread fit with precise shoulder dimensions (5/16" diameter, 7/8" length) manufactured to tight tolerances. The fastener meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance requirements, ensuring environmental regulatory adherence for industrial applications worldwide. The combination of 18-8 stainless steel material, passivated surface treatment, and controlled dimensional accuracy provides consistent performance in precision assembly operations.
