These are the longer versions of the Series 29 & Series 30 Short Inserts for higher torque and pull-out resistance. The Series 29 & 30 Long Inserts are designed with a wide center knurl coupled with two smaller knurls and deep undercuts on both ends to maximize torque and pull out performance. The Series 29 Long is symmetrical for ease of orientation, and the generous pilot facilitates installation into the hole. The Series 30 Long has the exact same body style as the Series 29 Long - with the addition of a head for more bearing surface for the mating component to prevent jack-out. The Series 29 & Series 30 Long Inserts are available in inch threads ranging from 2-56 up to 5/16-18.
If you would like assistance in selecting the most appropriate Insert for your application, please contact SPIROL for complimentary technical support.