S-91833A108 5/16"-18 Thumb Nuts
Thumb Nuts
Image may differ from product. See technical specification for details.
Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
Geometric Parameters
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Enhanced manual tightening efficiency with a knurled round head design for superior grip in high-vibration or gloved-hand applications
- Superior corrosion resistance from 18-8 stainless steel construction, ideal for humid, chemical, or outdoor industrial environments
- Reliable thread engagement with Class 2B thread fit ensuring consistent, precise mating with mating components
- Quick installation and adjustment through fully threaded UNC coarse threading, reducing assembly time in maintenance and prototyping
- Durable, long-lasting performance with a sturdy 1" head diameter and 5/8" height, supporting repeated hand-tightening without wear
- Compliance with global safety standards including REACH and RoHS 3, ensuring safe use in regulated industries
- Versatile inch-system compatibility with standard 5/16"-18 UNC threads, facilitating easy integration into existing equipment
Professional Applications & Engineering Value
This 18-8 stainless steel thumb nut addresses common challenges in industrial settings where tools are inaccessible or speed is critical. The knurled round head provides exceptional tactile grip, enabling secure hand-tightening even in oily conditions or when operators wear protective gloves. Its fully threaded UNC coarse thread design ensures rapid installation and removal, reducing downtime in assembly lines, machinery maintenance, and prototyping. Made from corrosion-resistant 18-8 stainless steel, it withstands harsh environments like marine, chemical processing, and food manufacturing, while the Class 2B thread fit guarantees reliable, slop-free connections. Ideal for applications in industrial equipment, electrical enclosures, and adjustable fixtures, this thumb nut combines ease of use with engineering durability.
Specification Summary & Compliance
This thumb nut features a 5/16"-18 UNC coarse thread with Class 2B thread fit for precise dimensional accuracy and smooth engagement. Key dimensions include a 1/2" collar diameter, 3/8" collar height, 1" head diameter, and 5/8" overall height. It complies with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) standards, ensuring adherence to environmental and safety regulations for industrial components.
