S-91327A292 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 permanent nylon patch that maintains secure fastening in dynamic applications from -50° to 250°F
- Superior corrosion resistance through 18-8 stainless steel construction and passivated finish for extended service life in harsh environments
- Precision alignment capability with 3/4" shoulder length maintaining tight tolerances for accurate component positioning
- High-strength performance delivering 70,000 psi tensile strength and Rockwell B55 hardness for demanding industrial applications
- Reliable thread engagement with Class 3A fit UNC threads ensuring consistent, secure fastening in assembly operations
- Easy installation and removal via hex socket drive design providing superior torque transmission and accessibility
- Regulatory compliance assurance meeting ASME B18.3 standards and environmental regulations for global industrial use
Professional Applications & Engineering Value
Engineered for precision mechanical assemblies, these 6-32 UNC shoulder screws with nylon patch thread locker provide critical vibration resistance in rotating equipment, automation systems, and precision instruments. The 18-8 stainless steel construction with passivated finish ensures long-term corrosion protection in manufacturing environments, while the 3/4" shoulder length with tight diameter tolerances enables accurate bearing and component alignment. The Class 3A thread fit guarantees consistent engagement in high-volume production, and the hex socket drive allows for efficient installation in confined spaces. These features combine to reduce maintenance frequency and improve assembly reliability across industrial machinery, electronic enclosures, and automotive components.
Specification Summary & Compliance
This shoulder screw features 6-32 UNC coarse threads with Class 3A fit for precision engagement, manufactured to ASME B18.3 specifications. The shoulder maintains diameter tolerance of -0.004" to -0.002" and length tolerance of -0.005" to 0.005" for consistent alignment. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility in industrial applications worldwide.
