S-90298A535 10-24 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
- Superior corrosion resistance with 18-8 stainless steel and passivated finish for long-lasting performance in harsh environments
- Precise component alignment ensured by the 1/4" shoulder diameter with tight ±0.001" tolerance for minimal play
- High-strength construction delivers 70,000 psi tensile strength and Rockwell B55 hardness for demanding mechanical applications
- Secure installation and removal with hex socket drive and knurled head for superior torque transmission and grip
- Reliable thread engagement through Class 3A UNC coarse threads providing vibration resistance in right-hand applications
- Reduced assembly time with standardized 10-24 UNC thread and 3/8" shoulder length for consistent fit across equipment
- Regulatory compliance meets ASME B18.3 specifications and environmental standards for global industrial use
Professional Applications & Engineering Value
This 10-24 UNC shoulder screw delivers critical engineering solutions where precision alignment and rotational stability are paramount. The 18-8 stainless steel construction combined with passivated finish prevents galvanic corrosion in assemblies exposed to moisture, chemicals, or outdoor elements. The 1/4" shoulder diameter with minimal tolerance variation acts as a precise pivot or spacer in machinery, eliminating bushings in rotating assemblies and reducing component count. With 70,000 psi tensile strength and Class 3A thread fit, it maintains clamping force under vibration in automotive fixtures, conveyor systems, and robotic arms. The hex socket drive and knurled head provide secure tool engagement during high-torque installation in confined spaces, making it ideal for precision equipment maintenance and OEM manufacturing applications.
Specification Summary & Compliance
Manufactured to ASME B18.3 standards with Class 3A thread fit for precision Unified National Coarse threads. Shoulder diameter tolerance maintained at -0.001" to 0.001" with shoulder length tolerance of -0.005" to 0.005". Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for industrial use.
