Check the listing for details. Knurled Clamping Knobs, M8 x 15mm Thread 32mm Head, Thumb Screw Bolt, 2-Pieces. Condition: New. Listed at 11.74 USD. Attributes:* Male Thread Size: M8 (1.25mm Pitch)* Thread Length: 15mm / 0.59"* Head Diameter: 32mm / 1.26"* Total Length: 35mm / 1.38"* Material: Plated Steel, Thermoset Plastic* Color: Black, Silver ToneWhat Is Included:* 2 Pieces x Knurled Clamping KnobsApplications & Features:--- The knurled clamping knobs are designed to provide a secure grip and quick adjustment, making it suitable for a variety of industrial applications. Widely used in lathes, drill presses, sawing machines, milling machine fixtures, packaging machinery, printing equipment, woodworking machinery, mechanical equipment, instrument equipment, food and industrial equipment.--- The knurled surface on knobs provides a non-slip grip, even with gloves or wet hands.