PIPER COMANCHE SERVICE MANt'AL TABLE II-II. RECOMMP'OEO ~CT TORQl'ES (I~CH-POL1~OS) (cont.) CHART A CHART B "APPLICABLE TO COARSE THREADS ONLY HANDLING AND SERVIn. REVISED: 11/1/82 IB20 BOLT SIZE FRICTION DRAG TORQUE flNLBS ) S" 10 1/4 5/16 3/8 7/16 15 18 30 60 80 100 COARSE THREAD SERIES BOLTS St.1 T.nsion AN 3 thru AN 20 AN 42 thru AN 49 AN 73 thru AN Bl AN 173 thru AN 186 MS 20033 thru MS 20046 MS 20073 MS 20074 AN 509 NK9 MS24694 AN S25 NK525 MS 27039 NUTS SteelT.nlion Steel Sh..r AN 310 AN 320 AN 315 AN 364 P.N 363 NAS 1022 AN 365 MS 17826 NAS 1021 MS20364. MS 17825 MS 21045 MS 2036S MS 20500 NAS 679 Nut-bolt Torqu. Limits TorQu.Limits lil' in-lb. in-Ibs Min. M.ll. Min. Mill.
8 -32 12 lS 7 9 10 -24 20 25 12 15 114-20 40 SO 25 30 5116-18 80 90 48 5S 3/8-16 160 185 95 110 7/16-14 23S 255 140 155 112-13 400 480 240 290 9/16-12 500 700 300 420 5'8-11 700 900 420 540 3'4-10 1.150 1,GOO 700 950 7/8- 9 2,200 3,000 1,300 1.800 1 -8 3.700 5.000 2,200 3.000 1-118-8 5.500 6.500 3,300 4,000 1-114-8 6,500 8.000 4.000 5,000 BOLTS St.1 T.nsion AN 3 thru AN 20 AN 42 thru AN 49 AN 73 thru AN Bl AN 173 thru AN 186 MS 20033 thru MS 20046 MS 20073 MS 20074 AN 509 NK9 MS24694 AN S25 NK525 MS 27039 NUTS SteelT.nlion Steel Sh..r