S-91375A417 5/8"-11 x 4 1/2" 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 corrosion resistance from black-oxide coating on alloy steel, extending service life in harsh industrial environments
- Maximum holding power with Class 3A thread fit ensuring precise, vibration-resistant fastening in critical assemblies
- Exceptional durability backed by Rockwell C45 hardness, maintaining structural integrity under heavy loads
- Secure installation through hex drive design providing reliable torque transmission without head interference
- Enhanced grip with cup tip configuration concentrating clamping force for permanent component positioning
- Industry-standard compatibility with 5/8"-11 UNC coarse threads simplifying replacement and maintenance procedures
- Regulatory compliance meeting ASME B18.3 specifications with RoHS 3 and REACH environmental standards
Professional Applications & Engineering Value
Engineered for permanent component positioning in heavy-duty machinery, this black-oxide alloy steel set screw addresses critical vibration-induced loosening challenges in industrial equipment. The Class 3A thread fit maintains dimensional precision under extreme operational stress, while the cup tip design creates concentrated clamping force that prevents shaft slippage in power transmission systems. With 5/8"-11 UNC coarse threads, installation efficiency is maximized in automotive, manufacturing, and construction applications where headless hex drive configuration enables flush mounting in confined spaces. The Rockwell C45 hardness ensures consistent performance in high-torque scenarios, making it ideal for permanent gear, pulley, and coupling installations requiring reliable long-term fixation.
Specification Summary & Compliance
Manufactured to ASME B18.3 specifications with Class 3A thread fit precision and 5/8"-11 UNC coarse thread dimensions. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Material certification includes black-oxide alloy steel construction with Rockwell C45 hardness verification for consistent mechanical performance across industrial applications.
