From the first article Company of Self Tapping Screws I, you can understand the defination of Self Tapping Screws and some brief information of Bose Company. In order to have a further understanding of it, I give the second article to let you know more about this.

A Graphical User Interface (GUI) was constructed in MATLABr to offer a user-friendly technique of producing a torque curve for any set of supplies with numerous properties. The authors of collected experimental information at BOSE and compared it using the theoretical outcomes from the model. Although there was pretty great agreement in between the model and experimental information, there had been some noticable variations about the Self Tapping Screws.

Feasible factors for these discrepencies had been presented in, and included the heat generated by friction. The objective of this project would be to rerne the model in thrst by calculating maximum allowable tightening torque prior to materials failure, after which by relaxing the assumption that heat generated by fricion is negligible. We predict that factoring in heat will assist to much better it the torque curve to the actual information also as much better predict the maximum allowable torque prior to tightening the Self Tapping Screws.

From the passage above, you can know a lot of the information about the Self Tapping Screws and some brief information of the Bose Company.