the jaw 22 and the clip 11 are designed to automatically clamp and hold the web material the jaws movement is a limited pivotal movement about the axis 23 of the jaw pivot pin 21 which is nonrotatably secured to the jaw 22 by a transverse pin 24 extending through aligned bores in the pin 21 and the jaw 22 referring to fig3 u2013 7 the process for manufacture of the jaw pivot pin 22 is illustrated by showing the steps of manufacture fig3 shows the pin 22 after the pin is rough finished to a predetermined oversize diameter and a pair of reduced diameter recesses 31 32 are formed near its axially opposite ends the recesses 31 32 having an axial dimension matching the bearing surfaces of the arms 17 18 of the tender clip 11 fig4 shows the pin 22 after the reduced diameter surface of the recesses 31 32 have been knurled fig5 shows the pin 22 after sleeves 34 36 of high temperature resistant plastic such as polytetraflouraethylene has been applied by injection molding to the reduced diameter areas 31 32 of the pin 22 the oversized pin 22 is next machined by centerless grinding to a desired finished diameter as illustrated in fig6 and 7 fig8 and 9 illustrate the centerless grinding step the shaft 22 is supported by a work blade 41 and.