Ordinary steel wire nut

1, Increasing connection strength
2, Increasing the force surface
3, To improve connectivity and conditions

Wire Thread Insert

   wire thread insert, referred to as silk cover, is a new type of threaded fasteners inside, usually with high-strength, high-precision, smooth surface of the diamond-shaped stainless steel wire precision cold-rolled thread forming coils for high-precision internal and external thread concentric body. It is mainly applied to high precision fasteners, or need to soft substrate materials to enhance strength thread, the thread repeated in order to increase the frequency of use. Post-steel screw set a good standard can form a line with the corresponding high-precision internal thread, its performance is better than tapping directly on the body on the formation of internal thread. Wire thread insert installed within a screw threaded hole tolerance zone depends on the wire surface dwelling size manufacturing tolerances and wire screw sleeve threaded mounting hole tolerance zone, the latter mainly depends on the wire thread insert installation of Bottom of the power wire precision, often forming 6H-class accuracy is high up to 5H, 4H-class tolerance zone, uniform thread accuracy 2B, 3B. Wire thread insert according to the required tolerance zone the user can choose wire thread insert special tap, tapping method (hand and attack aircraft attack), and lubrication, so as to ensure the achievement of your examination degrees and use requirements.