S-90210A212 5/16"-18 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 a 1 1/8" diameter knurled head for easy hand-tightening without tools.
- Enhanced durability and corrosion resistance provided by the black-oxide steel finish, suitable for various industrial environments.
- High tensile strength of 70,000 psi ensures reliable performance in demanding applications and prevents fastener failure.
- Secure and adaptable fastening with a removable swivel tip that accommodates up to 10° angular misalignment, protecting surfaces.
- Precise and reliable threading with a 5/16"-18 UNC coarse thread and Class 2A fit for easy installation and consistent engagement.
- Full 2" length threading offers maximum adjustability and holding power along the entire shank.
- Compliance with RoHS 3 regulations ensures environmental safety and meets international standards for hazardous substances.
Professional Applications & Engineering Value
This heavy-duty thumb screw is engineered from black-oxide steel to solve common assembly challenges in industrial settings. The knurled head provides exceptional manual grip, reducing installation time and eliminating the need for tools in frequent-adjustment applications like machinery panels, electronic enclosures, and jigs. The removable swivel tip with a 10° maximum angle compensates for minor misalignments, preventing damage to components and ensuring even pressure distribution. With a 5/16"-18 UNC coarse thread and fully threaded 2" length, it delivers strong, reliable clamping force in right-hand thread configurations, making it ideal for maintenance-heavy environments where quick access and durability are critical.
Specification Summary & Compliance
This thumb screw adheres to UNC thread standards with a Class 2A thread fit for consistent precision and ease of use. It is manufactured from high-strength steel and features a low-profile round head design. The product is RoHS 3 (2015/863/EU) compliant with exemption 6(a)-I, confirming it meets environmental regulations for lead as an alloying element in steel.
