Enhance the functionality of your equipment with this Round Press Lock Thumb Screw Knob. Designed for effortless installation on a 1/4 screw, this knob features a sleek black finish that complements any setup. Crafted from durable Acetal material, it guarantees long-lasting performance. With a .750 OD and .313 in head height, it offers a comfortable grip for efficient operation. Rest assured, this knob is RoHS compliant, meeting the highest standards of environmental responsibility. Upgrade your machinery with this essential accessory.