S-90200A547 1/4"-20 x 1" 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 round head design for secure hand-tightening without tools
- Superior corrosion resistance and durability thanks to black-oxide steel construction with Rockwell B84 hardness
- High load-bearing capacity with 70,000 psi tensile strength for demanding industrial applications
- Quick and reliable installation with 1/4"-20 UNC coarse threads and Class 2A fit ensuring smooth engagement
- Versatile low-profile design allowing use in confined spaces while maintaining full thread coverage
- Compliance with environmental safety standards including RoHS 3 and REACH for worry-free global sourcing
- Consistent performance in right-hand threaded assemblies with fully threaded shank for maximum adjustment range
Professional Applications & Engineering Value
This black-oxide steel thumb screw delivers exceptional value in industrial settings where frequent adjustments and tool-less operation are critical. The knurled head texture provides positive grip even with oily hands, eliminating slippage during tightening in machinery maintenance, electronic enclosures, and fixture applications. Engineered with 1/4"-20 UNC coarse threads and Class 2A thread fit, it ensures rapid installation and reliable holding power in steel frameworks and equipment assemblies. The combination of 70,000 psi tensile strength and corrosion-resistant finish makes it ideal for production environments, reducing replacement frequency and maintenance downtime while meeting strict regulatory requirements for industrial components.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2A thread fit and UNC coarse threading (1/4"-20) ensuring interchangeability with standard components. Full compliance with RoHS 3 (2015/863/EU) under exemption 6(a)-I and REACH (EC 1907/2006) regulations verified as of 01/17/2023. The fully threaded 1" length and right-hand thread direction provide consistent performance across industrial applications.
