S-90210A318 3/8"-16 x 3" 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 1-1/4" knurled head for secure handling even with gloves
- Enhanced surface durability and corrosion resistance through black-oxide steel construction
- High-strength performance with 70,000 psi tensile strength for demanding industrial applications
- Precise alignment and reduced surface damage thanks to removable swivel tip with 10° maximum angle
- Reliable thread engagement with Class 2A UNC coarse threads ensuring consistent fastening
- Quick installation and adjustment with fully threaded 3" length and right-hand threading
- Environmental compliance meeting RoHS 3 standards for regulated industrial use
Professional Applications & Engineering Value
This heavy-duty thumb screw delivers exceptional engineering value for industrial applications requiring frequent adjustments and secure fastening. The black-oxide steel construction provides superior corrosion resistance while maintaining the 70,000 psi tensile strength needed for high-stress environments. The knurled head design ensures positive grip during torque application, eliminating slippage in production settings. The innovative removable swivel tip with 10° maximum angle prevents surface marring on delicate components while maintaining perfect alignment. With UNC coarse threads and Class 2A thread fit, this thumb screw offers reliable performance in machinery, equipment panels, and assembly fixtures where tool-less operation and precision fastening are critical.
Specification Summary & Compliance
This thumb screw features 3/8"-16 UNC coarse threads with Class 2A thread fit for precision tolerance, manufactured from black-oxide steel with fully threaded 3" length. The product is RoHS 3 (2015/863/EU) compliant with exemption 6(a)-I for lead as an alloying element in steel, ensuring regulatory compliance for industrial applications. The right-hand thread direction and low-profile round head design meet industry standards for thumb screw applications requiring reliable, repeatable fastening performance.
