English Hand Turned Screw 6-32 UNC 4.5

Knurled Thumb Screws - Slotted/Plastic Knurled Thumb Screws, often simply referred to as Thumb Screws or a Knurled Screw, are among the most commonly used screw types and are highly important. This is due to their versatility, as they can be used across a plethora of industrial applications.