S-91830A742 1/2"-13 x 1 1/2" 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
- Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
- Excellent hand-tightening capability thanks to the large 1-3/8" knurled round head for secure grip without tools
- High load-bearing capacity with 80,000 psi tensile strength for demanding fastening applications
- Reliable thread engagement with Class 2A UNC coarse threads ensuring consistent performance
- Full-length threading provides maximum adjustment range and holding power
- Durable mechanical properties with Rockwell B83 hardness for long service life
- Regulatory compliance with RoHS 3 and REACH standards for safe use across industries
Professional Applications & Engineering Value
This heavy-duty thumb screw delivers exceptional value in applications requiring frequent adjustments or tool-free operation. The 18-8 stainless steel construction provides excellent corrosion resistance, making it suitable for outdoor equipment, marine environments, and chemical processing facilities. The knurled round head with raised profile offers superior grip even with gloved hands, while the 1/2"-13 UNC coarse threads ensure quick installation and removal. The fully threaded design allows for precise positioning in jigs, fixtures, and access panels. With its 80,000 psi tensile strength, this thumb screw maintains integrity under vibration and heavy loads, solving common fastening challenges in manufacturing, machinery, and electronic enclosures where reliability and ease of access are critical.
Specification Summary & Compliance
This thumb screw features Class 2A thread fit with 1/2"-13 UNC coarse threads in right-hand direction, manufactured to precise dimensional standards. The fastener maintains Rockwell B83 hardness and 80,000 psi tensile strength for consistent performance. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial applications worldwide.
