S-91327A288 6-32 ASME B18.3 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
- Vibration-resistant locking with integrated nylon patch that maintains secure fastening in temperatures from -50° to 250°F
- Superior corrosion resistance through 18-8 stainless steel construction and passivated surface treatment
- Precision alignment capability with consistent 5/32" shoulder diameter and controlled length tolerances
- High-strength performance delivering 70,000 psi tensile strength and Rockwell B55 hardness for demanding applications
- Reliable thread engagement with Class 3A thread fit ensuring precise mating with UNC coarse threads
- Easy installation and removal using standard 3/32" hex drive tools for efficient maintenance
- Industry compliance assurance meeting ASME B18.3 specifications and environmental regulations
Professional Applications & Engineering Value
This 6-32 UNC shoulder screw with nylon patch locking addresses critical vibration-induced loosening in industrial machinery, automotive assemblies, and precision equipment. The 18-8 stainless steel construction combined with passivated finish provides exceptional corrosion resistance in harsh environments, while the precisely machined shoulder ensures accurate component alignment and spacing. The Class 3A thread fit guarantees consistent engagement with mating components, reducing assembly time and improving reliability. Engineered for high-torque applications where vibration resistance and positional accuracy are paramount, this shoulder screw delivers long-term performance in robotics, conveyor systems, and manufacturing equipment where maintenance downtime must be minimized.
Specification Summary & Compliance
Manufactured to ASME B18.3 standards with Class 3A thread fit precision, this shoulder screw features a 6-32 UNC coarse thread with 3/16" thread length and controlled shoulder diameter tolerance of -0.004" to -0.002". The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting international environmental regulations while maintaining 70,000 psi tensile strength and Rockwell B55 hardness specifications.
