S-90289A192 8-32 x 3/8" 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
- Superior corrosion resistance with black-oxide coating on alloy steel, extending service life in demanding industrial environments.
- Exceptional holding power provided by serrations locking mechanism, preventing loosening under vibration and dynamic loads.
- Precision installation and high torque capability with 5/64" hex drive in a headless design, ideal for confined spaces.
- Reliable thread engagement due to Class 3A thread fit and UNC coarse thread, ensuring consistent clamping force.
- Enhanced surface penetration and component security from the cup tip design, minimizing damage to shafts and hubs.
- Long-term durability backed by Rockwell C45 hardness, maintaining mechanical integrity under repeated stress.
- Broad regulatory compliance including ASME B18.3, RoHS 3, and REACH, facilitating use in global markets.
Professional Applications & Engineering Value
This 8-32 UNC set screw is engineered to address critical challenges in precision assemblies, such as shaft-hub connections and adjustable components in machinery. The black-oxide alloy steel construction offers enhanced resistance to rust and wear, crucial for industrial settings with exposure to moisture or chemicals. Its headless hex drive and serrations locking mechanism provide secure, flush mounting that withstands vibrational forces, reducing maintenance needs. The coarse thread and Class 3A thread fit ensure quick, accurate installation with minimal risk of cross-threading, while the cup tip concentrates pressure for firm gripping without slippage. Ideal for applications in automotive, aerospace, and manufacturing equipment, this fastener delivers reliable performance where precision and durability are paramount.
Specification Summary & Compliance
This set screw adheres to Class 3A thread fit tolerances for high precision, with UNC coarse threads measuring 8-32 size and 3/8" length. It conforms to ASME B18.3 manufacturing specifications and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity.
