S-91375A425 5/8"-11 x 6" 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, reliable engagement in demanding applications.
- Exceptional durability and corrosion resistance provided by the black-oxide finish on high-strength alloy steel.
- High-strength performance backed by a Rockwell C45 hardness rating, ensuring the screw withstands high stress and vibration.
- Secure, non-slip fastening enabled by the hex drive and headless design, allowing for flush installation and high torque application.
- Enhanced grip and component positioning from the cup tip design, which bites into the contact surface to prevent shifting.
- Broad industrial compatibility with 5/8"-11 UNC coarse threads, facilitating quick assembly and disassembly.
- Compliance with major industry standards including ASME B18.3, RoHS 3, and REACH, ensuring safety and environmental responsibility.
Professional Applications & Engineering Value
This heavy-duty hex headless set screw is engineered to solve critical challenges in industrial assembly, such as component slippage and fastener failure under high stress. Manufactured from black-oxide alloy steel, it offers excellent resistance to corrosion and wear, extending service life in harsh environments. The Class 3A thread fit and UNC coarse thread provide superior holding strength and faster installation, reducing assembly time. The cup tip design ensures a firm bite into shafts, collars, and pulleys, preventing rotational or axial movement in machinery, automotive, and heavy equipment applications. This makes it an ideal choice for permanent or semi-permanent set screw applications where reliability is paramount.
Specification Summary & Compliance
This set screw features a 5/8"-11 UNC coarse thread with a Class 3A thread fit, ensuring high precision and interchangeability. It is manufactured in compliance with ASME B18.3 specifications and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its suitability for use in regulated industries and global markets.
