What is the best way to create the hole to install Invert-A-Bolt™ fasteners?
Thread milling is probably the fastest way to thread the holes if there are a great number of them. Otherwise, a tap is adequate for producing the thread. We sell left-hand taps as a convenience. Recommendations and step-by-step instructions can be obtained here. Also, drilling, milling and thread mill programs can be obtained here. For applications in which excessive vibration is an issue, a Spiralock® tap should be used to create the receiving side hole used to accept the stud.
