The 2791-H is a knurled scalloped clamping knob manufactured from thermoplastic material, designed for secure manual control in industrial machinery, medical equipment, and general industrial applications. It features a 1.88-inch diameter knob with a 0.84-inch height and a 1-inch hub, providing ergonomic control with a comfortable grip. The knob utilizes a projecting stud mounting type with a 3/8-16 thread specification and a 1.50-inch thread length, enabling reliable fastening to equipment. The black color and knurled scalloped design enhance grip and aesthetic appeal, while the soft thermoplastic construction with overmolded rubber-like top surface delivers a comfortable touch and sure grip for operators. This configuration is ideal for applications requiring extended thread engagement and secure, repeatable positioning in demanding industrial environments.