T-screw is available in both imperial and metric specifications. The imperial standard is ACME, and the metric standard is Trapezoidal.
T-screws are typically used in instrument-grade applications that require smooth, precise, clean, and maintenance-free operation, and the nut is typically an internally lubricated polymer material. T-screw applications also include laboratory and life science equipment, such as DNA sampling equipment, scanning equipment, and fluid handling equipment. Other applications include engraving, rapid prototyping, inspection and data storage equipment.