S-91375A176 8-32 x 1 1/4" ASME B18.3, ASTM F912 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 holding power with Class 3A thread fit for precise, vibration-resistant connections in demanding applications
- Deep material penetration from the cup point design ensures maximum grip and prevents component slippage
- Enhanced corrosion resistance with black-oxide coating on alloy steel for extended service life in harsh environments
- High-strength performance backed by Rockwell C45 hardness for reliable load-bearing capacity
- Easy installation and removal using standard 5/64" hex tools, reducing assembly time and maintenance costs
- Wide industrial compatibility with UNC coarse threads and right-hand direction for common machinery and equipment
- Regulatory compliance assurance meeting ASME B18.3, RoHS 3, and REACH standards for safe, global usage
Professional Applications & Engineering Value
This 8-32 UNC set screw delivers critical engineering solutions for industrial assemblies requiring secure shaft and component positioning. The black-oxide alloy steel construction provides excellent durability against wear and environmental exposure, while the cup point design bites deeply into materials to prevent rotational loosening under vibration—a common failure point in machinery. With its Class 3A thread fit and coarse UNC threading, it ensures quick assembly and reliable performance in pulleys, gears, and coupling applications. Ideal for heavy-duty set screw uses in manufacturing, automotive, and aerospace sectors, this fastener combines precision thread spacing with robust Rockwell C45 hardness to maintain clamp load integrity over time, reducing maintenance intervals and improving operational safety.
Specification Summary & Compliance
This set screw features precise 8-32 UNC coarse threads with Class 3A thread fit for tight tolerances and secure fastening. Manufacturing adheres to ASME B18.3 specifications (ASTM F912), ensuring dimensional accuracy and performance reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free of restricted hazardous substances and safe for industrial use worldwide.
