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Performance Details

The use of self-tapping inserts has significant advantages over pre-tapped holes, moulded-in inserts and wire thread inserts. They eliminate close tolerance holes required for tapping directly into the base material, damaged tools and low productivity resulting from moulded-in inserts and the time consuming process of placing wire thread inserts into pre-tapped holes. The use of a self-tapping insert can result in a reduction in thread size required because of the insert’s large effective shear surface saving material and reducing cost and weight.

External Thread Interference

For a work-piece made of a light alloy, this diagram illustrates clearly that whilst correct hole sizes are important for product reliability, the self-tapping insert 302 ifezekisa phantse ubuninzi bokutsalwa ngaphandle kuphela 30% ukuphazamiseka komsonto wangaphandle.

I-Pullout Resistance

Kwi-alloy ekhanyayo, i-self-tapping steel insert imelana ne-draut force in excess yenqaku lesivuno se 8.8 ibholithi yebakala.