S-91185A257 6-32 x 1/4" Thumb Screws
Thumb Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Enhanced grip and comfort with knurled acetal plastic head for easy manual tightening without tools
- Superior corrosion resistance from 18-8 stainless steel construction, ideal for humid or demanding environments
- Precise thread engagement with Class 3A fit and UNC coarse threads for reliable, vibration-resistant fastening
- Full-threaded design ensures maximum holding power and consistent performance across the entire length
- Wide temperature compatibility with head operating from 32° to 180° F for diverse industrial settings
- Low-profile round head minimizes protrusion, suitable for space-constrained applications
- Compliance with environmental standards including RoHS 3 and REACH for safe, sustainable use
Professional Applications & Engineering Value
This 6-32 UNC thumb screw combines the strength of 18-8 stainless steel with the ergonomic advantage of a knurled acetal plastic head, addressing common assembly challenges in industrial and electronic enclosures. The fully threaded design and Class 3A thread fit provide exceptional clamping force and resistance to loosening under vibration, making it ideal for frequent-access panels, machinery guards, and instrumentation. The low-profile round head reduces snagging risks while the coarse UNC threads enable quick installation in soft materials or pre-tapped holes. With a temperature-resistant head and compliance to RoHS 3 and REACH, this screw ensures durability and safety in regulated environments like medical devices, automotive controls, and consumer electronics.
Specification Summary & Compliance
This thumb screw adheres to UNC thread standards with a 6-32 thread size and Class 3A thread fit for high precision. The 1/4" length and fully threaded configuration ensure consistent performance. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, guaranteeing the absence of hazardous substances. The right-hand thread direction and coarse thread spacing align with industrial fastening requirements for reliable, repeatable use.
