S-94355A743 1/2"-13 x 1 1/2" ASME B18.3 Set Screws
Set 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
- Exceptional holding power with Class 3A thread fit for secure, vibration-resistant fastening in demanding applications
- Superior corrosion resistance from 18-8 stainless steel construction, ensuring long-term reliability in harsh environments
- Optimized installation torque with 1/4" hex drive design, preventing tool slippage and enabling precise tightening
- Enhanced material durability with Rockwell B80 hardness, providing excellent resistance to wear and deformation
- Reliable coarse threading (UNC 1/2"-13) for faster installation and reduced cross-threading risks in industrial assemblies
- Secure flat tip design that maximizes surface contact for improved grip and minimal component damage
- Full regulatory compliance with ASME B18.3, RoHS 3, and REACH standards for safe, globally accepted usage
Professional Applications & Engineering Value
This 1/2"-13 UNC Class 3A hex headless set screw delivers critical performance in machinery, automotive, and precision equipment where vibration resistance and positional security are paramount. The 18-8 stainless steel composition combats corrosive elements in industrial settings, while the coarse thread configuration ensures rapid assembly without compromising joint integrity. Engineered with a flat tip and Rockwell B80 hardness, it maintains consistent clamping force under dynamic loads, preventing loosening in high-stress applications like shaft collars, gears, and pulleys. Its headless design allows flush mounting in confined spaces, making it ideal for permanent or semi-permanent fastening solutions across manufacturing and maintenance operations.
Specification Summary & Compliance
This set screw features precision UNC 1/2"-13 coarse threads with Class 3A fit for tight tolerances and reliable engagement. Manufactured in compliance with ASME B18.3 specifications, it ensures dimensional accuracy and mechanical consistency. The product is verified as RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting international environmental and safety standards for industrial components.
