S-91385A183 1"-8 x 1" 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
- Vibration-resistant locking with nylon patch thread locker maintains secure fastening in high-stress environments
- Superior corrosion protection from black-oxide coating extends service life in demanding industrial conditions
- Precision Class 3A thread fit ensures consistent engagement and reliable torque performance
- High-strength alloy steel construction with Rockwell C45 hardness provides exceptional durability under heavy loads
- Wide temperature tolerance from -50°F to 250°F allows reliable operation in extreme thermal conditions
- Secure cup point design creates positive seating and prevents component slippage during operation
- Industry-standard compliance with ASME B18.3 ensures consistent quality and interchangeability
Professional Applications & Engineering Value
Engineered for demanding industrial applications, this black-oxide alloy steel set screw addresses critical challenges in machinery assembly and maintenance. The nylon patch locking technology provides reliable vibration resistance in rotating equipment, conveyor systems, and power transmission components where loosening could cause catastrophic failure. The 1"-8 UNC coarse thread configuration enables rapid installation while maintaining high clamping force, while the cup point design bites securely into mating surfaces to prevent relative movement. These headless set screws are particularly valuable in space-constrained assemblies where flush mounting is essential, offering superior performance in automotive, manufacturing, and heavy equipment applications where thermal cycling and mechanical stress are constant concerns.
Specification Summary & Compliance
This set screw features precision Class 3A thread fit with 1"-8 UNC coarse thread spacing and right-hand thread direction. Manufactured to ASME B18.3 specifications with Rockwell C45 hardness rating. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets. The hex drive design (9/16") provides secure tool engagement for precise torque application during installation.
