S-97345A411 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 316 stainless steel construction, ideal for harsh industrial environments and extended service life.
- High-strength performance offering 70,000 psi tensile and 35,000 psi shear strength for reliable load-bearing in demanding applications.
- Precision Class 3A thread fit ensures tight, secure fastening with minimal backlash and consistent assembly quality.
- Durable Rockwell B79 hardness provides excellent wear resistance and maintains thread integrity under repeated use.
- Secure hex socket drive with 1/8" size allows for high-torque installation and easy access in confined spaces.
- Non-slip knurled head enhances grip during manual adjustment or handling, improving operational safety.
- Standardized UNC coarse threads enable quick assembly and disassembly, reducing maintenance time and labor costs.
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw is engineered to address critical challenges in precision machinery, automation systems, and pivoting assemblies. The UNC coarse thread with Class 3A fit provides exceptional dimensional stability, preventing loosening under vibration and dynamic loads. The knurled socket head combined with a hex drive ensures reliable torque transmission, while the corrosion-resistant material withstands exposure to chemicals, moisture, and extreme temperatures. Ideal for mounting gears, bearings, and linkages, this screw delivers consistent shoulder diameter and length tolerances, ensuring precise alignment and reducing wear on connected components in industrial applications.
Specification Summary & Compliance
This shoulder screw features an 8-32 UNC thread with Class 3A precision fit, a shoulder diameter of 1/4" (tolerance: -0.004" to -0.002"), and shoulder length of 7/8" (tolerance: -0.005" to 0.005"). It is manufactured in compliance with ASME B18.3 specifications and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safety and regulatory adherence for global industrial use.
