S-90282A233 3/8"-16 x 3" Thumb Screws

Key Features & Benefits at a Glance

• Enhanced grip and torque application with 1-1/4" diameter knurled head for secure manual operation without tools
• Superior corrosion resistance through black-oxide steel construction for extended service life in industrial environments
• High mechanical strength with 80,000 psi tensile strength and Rockwell B85 hardness for demanding applications
• Secure swivel tip engagement with permanent 3/8" tip maintaining 7.5° maximum angle for consistent surface contact
• Reliable thread performance featuring Class 2A UNC coarse threads for easy alignment and robust fastening
• Full-length threading providing maximum adjustment range and holding power across the entire 3" length
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for environmentally responsible manufacturing

Professional Applications & Engineering Value

This heavy-duty thumb screw delivers exceptional value in industrial settings where quick adjustments and reliable fastening are critical. The black-oxide steel construction provides superior corrosion resistance, while the knurled head design ensures positive grip even with greasy hands or when wearing gloves. The permanent swivel tip with 7.5° maximum angle prevents surface damage and maintains consistent pressure distribution, making it ideal for precision equipment, machinery guards, and access panels. The 3/8"-16 UNC coarse thread configuration enables rapid installation and removal, while the Class 2A thread fit guarantees consistent performance in high-vibration environments. These industrial thumb screws are engineered to withstand rigorous use while maintaining their mechanical integrity and fastening reliability.

Specification Summary & Compliance

This thumb screw features precision 3/8"-16 UNC coarse threads with Class 2A thread fit for optimal clearance and engagement. The fully threaded design spans the entire 3" length, while the low-profile round head measures 1-1/4" in diameter with 1/2" height. Manufacturing complies with RoHS 3 (2015/863/EU) with exemption 6(a)-I for lead as an alloying element in steel and REACH (EC 1907/2006) compliance as of 06/10/2022. The permanent swivel tip maintains dimensional stability with 5/16" diameter and 3/8" length, supporting right-hand thread direction for standard industrial applications.