Thread taps - Import export

Self-tapping threaded inserts for making high-strength, wear-free, vibration resistant screw connections in materials with low shear strength such as aluminium and aluminium alloys, brass, bronze, cast iron, duro and thermoplastics. The threaded inserts are tapered at the bottom and have a cutting slot. By screwing in they cut their own threads inside a receiver hole. This guarantees a completely secure and firm anchoring in the host material. Internal thread D1 acc. to ISO 6H. The threaded inserts with cutting slot spring slightly inwards in the slot region in some materials. This results in a screw locking effect. If this is not desired, we recommend the threaded inserts with a cutting bore.

Our H guides can be adapted to many electric actuators of the market (with threaded rod or tapped rod). Also available in anticorroding version (AluStainless Steel)

Drillstar taper taps and die collars are manufactured from high-grade alloy steel and cemented to ensure the highest strength. They are available in a wide range of sizes, and can be equipped with different types of guides. Taper Taps Plain type Drillstar taper taps are either plain or fluted, with four longitudinal grooves which allow the easy evacuation of cuttings. The hardened cutting teeth (wickers) are available with either right-hand or left-hand spiral. Over a meter in length, the taps offer two particular advantages : First, they can be screwed into the washover subs, thus allowing the tap to be guided by an external tube. Secondly, due to the fine tapering of the threads, the tap can be screwed further into the fish head and will accept considerable pull without releasing the fish. Skirted type For difficult fishing operations, Drillstar Industries has developed a skirted taper tap. This rugged tool is composed of 3 pieces : 1.A taper tap with an upper pin thread. 2.A sk