The determination of the sewing thread consumption is an important basis for the norm of thread in garment industry. There is a basis to calculate product costs, prepare properly and enough sewing threads for production and contribute to saving sewing threads. This article presents the results of determining the effect of several important sewing parameters on the thread consumption and the optimal models to calculate the consumption only for the 301, 504 and 516 seams, that are built from experimental data using BMA (Bayesian Model Average) technique. The thread consumptions for the experimental seams are determined with these stitches on the Pe/Co 65/35 fabric and the sewing machines JUKI DDL 5500N and MO-6816 SS. Thread consumptions for 301, 504, and 516 stitches are estimated based on multivariate linear models of stitch length, stitch density and fabric thickness have been determined with a determination coefficients R2 = 0.931 to 0.934.

Keywords: Thread consumption, 301 seam, 504 seam 516 seam, BMA technique.