S-97832A180 8-32 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
- Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and extended service life.
- Precise component alignment ensured by the 1/4" shoulder diameter with tight tolerance, reducing assembly errors and wear.
- High-strength performance delivering 70,000 psi tensile and 35,000 psi shear strength for demanding mechanical applications.
- Reliable thread engagement with Class 3A fit and coarse UNC threads, providing secure fastening and vibration resistance.
- Easy installation and grip thanks to the hex socket drive and knurled head texture, allowing for high-torque application without slippage.
- Durable and hard-wearing material with Rockwell B55 hardness, maintaining integrity under repeated use and stress.
- Compliance with industry standards including ASME B18.3, ensuring consistent quality and interchangeability in professional assemblies.
Professional Applications & Engineering Value
This 8-32 UNC shoulder screw is engineered to address critical alignment and load-bearing challenges in industrial machinery, automation systems, and precision equipment. The 18-8 Stainless Steel offers excellent corrosion resistance, making it suitable for environments exposed to moisture, chemicals, or outdoor conditions. The 1/4" shoulder diameter and 1/2" shoulder length provide a stable bearing surface, preventing lateral movement and reducing stress on threaded sections. With a Class 3A thread fit and coarse UNC threads, it ensures quick assembly and reliable performance in high-vibration applications. The socket head with knurled texture allows for secure tool engagement, facilitating efficient maintenance and reducing downtime in production lines.
Specification Summary & Compliance
This shoulder screw features precise dimensions including a shoulder diameter tolerance of -0.004" to -0.002" and shoulder length tolerance of -0.005" to 0.005". It complies with ASME B18.3 specifications for consistent manufacturing quality. The Class 3A thread fit ensures tight tolerances for reliable fastening. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for global industrial use.
