S-91746A812 3/8"-16 x 2 1/2" Thumb Screws

Key Features & Benefits at a Glance

• Superior manual grip and torque application with a knurled round head design, ensuring easy hand-tightening without tools in tight spaces
• Exceptional corrosion resistance and durability from 18-8 stainless steel construction, ideal for harsh industrial environments
• High mechanical strength and load-bearing capacity with 80,000 psi tensile strength and Rockwell B83 hardness for reliable, long-term performance
• Precise and secure fastening thanks to UNC coarse threads and Class 2A thread fit, reducing cross-threading risks
• Versatile low-profile design allows use in confined areas while maintaining a sturdy 0.875" head diameter for ample surface contact
• Compliance with stringent environmental regulations including RoHS 3 and REACH, ensuring safe use in regulated industries
• Partially threaded shank provides optimal thread engagement and reduces material stress in assembly applications

Professional Applications & Engineering Value

This 3/8"-16 thumb screw is engineered to address common industrial challenges such as frequent adjustments, vibration loosening, and corrosion in demanding settings. The 18-8 stainless steel material offers excellent resistance to rust and chemicals, making it suitable for outdoor equipment, marine hardware, and food processing machinery. Its low-profile knurled head ensures a firm grip even with oily or gloved hands, enhancing operator safety and efficiency. The UNC coarse threads and Class 2A thread fit provide quick installation and reliable holding power, minimizing assembly time and maintenance needs in industrial thumb screw applications like panel fastening, machinery covers, and electronic enclosures.

Specification Summary & Compliance

This thumb screw adheres to UNC thread standards with a Class 2A thread fit for consistent dimensional accuracy. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances. The screw features a partially threaded design with a length of 2 1/2" and a coarse thread spacing, providing reliable performance in various industrial fastening tasks.