S-93015A218 5/16"-18 x 1" Thumb Screws
Thumb 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
- Effortless manual operation with a large 1 1/8" knurled head providing superior grip without tools.
- Exceptional corrosion resistance from 18-8 Stainless Steel, ideal for harsh or wash-down environments.
- Reliable fastening strength with 80,000 psi tensile strength and Rockwell B83 hardness for durable performance.
- Quick and easy coarse thread engagement with the 5/16"-18 UNC thread, reducing installation time.
- Secure and precise thread fit due to the Class 2A thread standard, minimizing cross-threading risks.
- Versatile low-profile design with a partially threaded shank and extended tip for easy alignment in various applications.
- Compliance with global environmental standards including RoHS 3 and REACH, ensuring safe and sustainable use.
Professional Applications & Engineering Value
This 18-8 Stainless Steel Thumb Screw is engineered to solve common industrial challenges where tool-less access, frequent adjustments, and corrosion resistance are critical. The knurled head offers a non-slip surface, enabling secure handling even with gloves or oily conditions, which is vital in maintenance panels, machinery guards, and electronic enclosures. Its coarse UNC thread ensures rapid installation and removal, reducing downtime in production lines or assembly stations. The low-profile round head and extended tip facilitate easy alignment in tight spaces, while the robust material withstands exposure to moisture, chemicals, and high-stress environments. Ideal for OEM equipment, automotive, and marine applications, this screw delivers consistent performance and longevity, minimizing replacement cycles and maintenance costs.
Specification Summary & Compliance
This thumb screw adheres to precise dimensional standards, including a Class 2A thread fit for consistent engagement and a 5/16"-18 UNC coarse thread with an 11/16" thread length. It is manufactured from 18-8 Stainless Steel and meets regulatory requirements such as RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring it is free from hazardous substances and suitable for global industrial use.
