S-91375A851 3/4"-10 x 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, secure fastening in demanding applications.
- Exceptional durability from Rockwell C45 hardness alloy steel, resisting wear and deformation under high stress.
- Enhanced corrosion resistance with black-oxide coating, extending service life in harsh industrial environments.
- Reliable engagement via the cup tip design, which minimizes component surface damage while providing strong clamping force.
- Efficient installation and removal using the 3/8" hex drive, allowing for high torque application without head protrusion.
- Wide compatibility with 3/4"-10 UNC coarse threads, ensuring easy assembly and interchangeability in various machinery.
- Compliance with global standards including ASME B18.3, RoHS 3, and REACH, guaranteeing safety and environmental responsibility.
Professional Applications & Engineering Value
This 3/4"-10 UNC set screw is engineered to address critical challenges in industrial assemblies, such as shaft collars, gears, and pulleys, where vibration and heavy loads can cause loosening. The black-oxide alloy steel construction, combined with Rockwell C45 hardness, ensures high tensile strength and fatigue resistance, reducing maintenance needs. Its headless design and hex drive enable flush mounting in confined spaces, while the cup tip concentrates pressure for secure locking without marring surfaces. Ideal for automotive, machinery, and construction sectors, this heavy-duty set screw delivers reliable performance under extreme conditions, backed by ASME B18.3 specifications for consistent quality.
Specification Summary & Compliance
This set screw adheres to precise dimensional standards, including Class 3A thread fit for tight tolerances and UNC coarse threads with a 3/4"-10 size for robust engagement. Manufactured in compliance with ASME B18.3 and ASTM F912, it ensures reliability in mechanical systems. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for hazardous substances.
