S-90732A410 1/4"-20 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
- Enhanced corrosion resistance with black-oxide steel coating for extended service life in demanding environments
- Quick manual installation and removal through ergonomic thumb head with external hex drive requiring no tools
- Superior load-bearing capacity with 70,000 psi tensile strength and Rockwell B84 hardness for heavy-duty applications
- Reliable thread engagement with Class 2A UNC coarse threads ensuring consistent fastening performance
- Maximum grip length versatility from fully threaded 1" design accommodating various material thicknesses
- Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial use
- Simplified inventory management with standardized 1/4"-20 right-hand thread matching common equipment
Professional Applications & Engineering Value
These black-oxide steel thumb screws deliver exceptional value in industrial settings where frequent adjustments and reliable fastening are critical. The external hex drive combined with the thumb head design enables rapid manual operation without tools, significantly reducing maintenance downtime in assembly lines, machinery guards, and electronic enclosures. The UNC coarse thread configuration with Class 2A fit provides excellent resistance to vibration loosening while the fully threaded construction ensures maximum holding power across varying material thicknesses. Engineered with 70,000 psi tensile strength, these thumb screw fasteners maintain structural integrity under repeated cycling, making them ideal for manufacturing equipment, automotive fixtures, and telecommunications infrastructure where durability and compliance with RoHS 3 and REACH standards are mandatory.
Specification Summary & Compliance
Manufactured to precise inch system dimensions with 1/4"-20 UNC coarse thread maintaining Class 2A thread fit tolerances for consistent performance. The black-oxide steel construction delivers Rockwell B84 hardness and 70,000 psi tensile strength. Fully compliant with RoHS 3 (2015/863/EU) under exemption 6(a)-I and REACH (EC 1907/2006) regulations, ensuring environmental responsibility while providing reliable right-hand thread fastening solutions for industrial applications.
