S-91185A426 1/4"-20 x 1 3/4" 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 torque application with knurled acetal plastic head for secure hand-tightening without tools
- Superior corrosion resistance from 18-8 stainless steel construction, ideal for humid or washdown environments
- Precise thread engagement with Class 3A UNC coarse threads ensuring reliable fastening in industrial assemblies
- Space-saving low-profile design with 5/16" head height for applications with limited clearance
- Durable plastic-to-metal combination providing electrical insulation and reduced marring on contact surfaces
- Wide temperature compatibility (32° to 180°F) for stable performance across various operating conditions
- Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial use
Professional Applications & Engineering Value
This low-profile thumb screw combines the corrosion-resistant properties of 18-8 stainless steel with the excellent grip characteristics of a knurled acetal plastic head, solving critical assembly challenges in industrial settings. The Class 3A thread fit with UNC coarse threading provides superior engagement in soft materials and rapid installation for maintenance panels, access doors, and equipment covers. The partially threaded design allows for precise clamping force control while the 3/4" head diameter offers substantial surface area for comfortable manual operation. These industrial thumb screws are particularly valuable in electronics enclosures, medical devices, and food processing equipment where frequent access and corrosion resistance are paramount requirements.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 3A thread fit for superior engagement in UNC 1/4"-20 coarse threads. Features include right-hand thread direction, partial threading with minimum 1" thread length, and overall length of 1 3/4". Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations for restricted substances, ensuring environmental and safety standards are met for industrial applications worldwide.
