S-97424A680 1/4"-80 x 2" 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
- Superior grip and torque application with knurled black acetal plastic head for reliable hand-tightening in various industrial environments
- Exceptional corrosion resistance provided by 18-8 stainless steel construction, ensuring long-term durability in demanding applications
- Precise thread engagement with Class 3A fit and ultra-fine 1/4"-80 thread spacing for secure fastening in delicate assemblies
- Enhanced installation efficiency through ball tip design that facilitates easier alignment and reduces cross-threading risks
- High mechanical strength with 60,000 psi tensile strength rating for reliable performance under substantial loads
- Wide temperature compatibility with head rated to 180°F, suitable for various operational environments
- Regulatory compliance assurance meeting RoHS 3 and REACH standards for environmentally conscious manufacturing operations
Professional Applications & Engineering Value
This precision thumb screw combines the corrosion-resistant properties of 18-8 stainless steel with the ergonomic advantages of a knurled acetal plastic head to solve critical industrial fastening challenges. The ultra-fine 1/4"-80 thread with Class 3A fit ensures precise engagement in applications requiring minimal thread pitch, such as optical equipment, electronic enclosures, and precision instruments. The ball tip design prevents damage to mating surfaces while facilitating quick alignment, reducing assembly time and improving production efficiency. The black knurled head provides excellent tactile grip even with gloved hands, making it ideal for maintenance panels, access doors, and frequently adjusted components across manufacturing, aerospace, and laboratory environments.
Specification Summary & Compliance
This thumb screw features precision UNS thread standard with Class 3A thread fit for superior dimensional accuracy. The ultra-fine thread spacing (1/4"-80) and 2" fully threaded length ensure consistent fastening performance. Manufacturing compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental responsibility and chemical safety standards for industrial applications worldwide.
