公制美制英制螺紋對(duì)照表

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1、公制/美制/英制螺紋對(duì)照表A型美制螺紋（UNF）常用規(guī)格^WZcM#~TL?????外螺紋??內(nèi)螺紋wA0$d?-4??9/16"-19牙??14.28??13.08Vz"Ja?-6??11/16''-16??17.46??16.1%,l+
?fF?-8??13/16''-16??20.64??19.28,r&:C48dI?-10??1''-14??25.40??23.57cWdKi?-12??1(3/16)''-12??30.00??28.32-R~!N#y?-16??1(7/16)''-12??36.51??34.673Ishe
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2、20??1(11/16)''-12??42.86??41.0236NENzK?0>?C型JIC37度美制UNF螺紋常用規(guī)格#B;~i6h]?-4??7/16”-20??11.11??10.03:YZqrcr}?-5??1/2”-20??12.70??11.32_K4Igq?-6??9/16”-18??14.28??13.08/M:R

3、91:_?-8??3/4”-16??19.00??17.68GI&XL'K&?-10??7/8”-14??22.22??20.68[d(@lbV0?-12??1(1/16)"-12??26.98??25.15])d

4、_B)Kck?-16??1(5/16)"-12??33.33??31.5W?a{3B?-20??1(5/8)"-12??41.28??39.442"31k2H[?-24??1(7/8)"-12??47.62??45.8dQ4VpR9

5、;?-32??2(1/2)"-12??63.5??61.67ogcEv>0?J3oEN'
8S?英制圓柱管螺紋（BSPP）常用規(guī)格8>Y?-4??1/4”-19??13.157??11.55#cG7h(!?-6??3/8”-19??16.662??14.95_j$"fg?-8??1/2”-14??20.955??18

6、.637Ao9MF-?-12??3/4”-14??26.441??24.11`Yk~2t"V?-16??1”-11??33.249??30.29e):jQite
?-20??1(1/4)''-11??41.91??38.95gB4&p
PN?J~=bW^I?英制圓錐管螺紋（BSPT）常用規(guī)格)>_xHc??????基面大徑??基準(zhǔn)距離/RVy?)hVT#???1/4”-19??13.157??6r5

7&F`{???3/8”-19??16.662??6.4~d0:>8zQR???1/2”-14??20.955??8.29q+I???3/4”-14??2

7、6.441??9.5L1'PQV???1”-11??33.249??10.4SM57bN???1(1/4)''-11??41.91??12.7AcZ{B

8、kGp~???1/8”-27??10.24??4c-`'`L^J???1/4”-18??13.60??4q1a*6*YB???3/8”-18??17.04??4.32rSgOQ???1/2”-14??21.22??4.48`i`F$;?

9、??3/4”-14??26.57??4.757DZZdH$Fm???1”-11(1/2)”??33.22??4.6*^3&Y@???1(1/4)”-11.5??41.96??4.83美制外螺紋（2A）常用規(guī)格極限尺寸表（粗牙）打印

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11、評(píng)分2007-4-2016:33美制外螺紋（2A）常用規(guī)格極限尺寸表（粗牙）公稱尺寸和每英寸牙數(shù)螺紋系列代號(hào)大徑極限中徑極限小徑max螺胚直徑最小最大最小最大最小最大8-32UNC0.15710.16310.13990.14280.12483.583.61(0.164-32)3.99034.14273.55353.62713.169910-2

12、40.18180.18900.15860.16190.13794.074.10(0.190-24)4.61774.80064.02844.11233.502712-240.20780.21500.18450.18790.16394.724.75(0.216-24)5.27815.46104.68634.77274.16311/4-200.24080.24890.21270.21640.18765.455.48(0.250-20)6.11636.32215.