Accessories Shell Mill Adapter Lock Screws (SM Lock Screws continued) I.D. drive external size thread size SM Round Lock Screw • Metric external I.D. order number catalog number thread size D2 L LTHD drive size 4078806 KLSS27M M12X1.75 35,0 30,9 22,0 10mm 4078807 KLSS32M M16X2.0 42,0 37,9 26,0 14mm 4078808 KLSS40M M20X2.5 52,0 44,9 30,0 17mm I.D. drive external size thread size SM Lock Screw • Inch external I.D. order number catalog number thread size D2 L LTHD drive size 1020548 KLS05 .250-28 UNF .656 1.000 .656 3/16 1020550 KLS07 .375 - 24 UNF .875 1.062 .687 1/4 1020552 KLS10 .500 - 20 UNF 1.188 1.187 .812 5/16 1020574 KLS12 .625 - 18 UNF 1.500 1.535 1.040 5/16 1020576 KLS15 3/4 - 16 UNF 1.875 1.516 1.016 3/8 1020578 KLS20 1.000 - 14 UNS — — — 9/16 WWW.WIDIA.COM J25 Accessories