Groov-Pin Corporation Welcome! Groov-Pin Corporation is a full service supplier of performance products: grooved pins, threaded inserts, and precision turned components used in commercial, military, and aerospace applications. Grooved Pins We manufacture press-fit fasteners that combine superior holding performance and extraordinary vibration resistance. Precision Turned Components Our PTC subsidiary manufactures a wide variety of connectors, fittings, and other complex parts that meet critical tolerance and finish requirements. Threaded Inserts We manufacture threaded inserts with superior ho