1、紧固件螺纹直径与螺距对照表6紧固件螺纹直径与螺距对照表 螺纹规格M3M4M5M6M8M10M12M14M16M18M20M22M24M27M30M33M36M39M42M45M48M52M56M60M64粗牙螺距0.50.70.81.01.251.51.752.02.02.52.52.53.03.03.53.54.04.04.54.55.05.05.55.56.0细牙螺距-1.01.0-1.251.5-1.251.51.51.52.0-1.52.02.02.02.02.03.03.03.03.03.04.04.04.04.0螺栓、螺钉、螺柱公称长度表6810121620253035404550
2、(55)60(65)7075808590(95)100105110115120125130140150160170180190200220240260280300注：尽量不采用括号尺寸螺栓、螺钉、螺柱螺纹的公称长度螺纹规格M3M4M5M6M8M10M12M14M16M18M20M22M24M27M30M33M36M39M42M45M48M52M56M60M64粗牙螺距1214161822263034384246505460667278849096102-注：公称长度1 螺纹长度b,则：1125 b=2d+6 1125200 b=2d+2 1200 b=2d+5 公、英制对照表、紧固件常用尺寸规
3、格规 格牙 距规 格称呼径牙 数粗牙细牙极细牙粗 牙细 牙韦氏牙M30.50.354#2.94048M40.70.56#3.53240M50.80.58#4.23236M61.00.7510#4.82432M71.00.7512#5.52428M81.251.00.751/46.35202820M101.51.251.05/167.94182418M121.751.51.253/89.53162416M142.01.51.07/1611.11142014M162.01.51.01/212.7132012M182.52.01.59/1614.29121812M202.52.01.55/815.8
4、6111811M222.52.01.53/419.05101610M243.02.01.57/822.239149M273.02.01.5125.408128M303.53.02.0规格英寸毫米规格英寸毫米No.00000.02100.53341/40.25006.3500No.0000.03400.86365/160.31257.9375No.000.04701.19383/80.37509.5250No.00.06001.52407/160.437511.1125No.10.07301.85421/20.500012.7000No.20.08602.18449/160.562514.287
5、5No.30.09902.51465/80.625015.8750No.40.11202.84483/40.750019.0500No.50.12503.17507/80.87522.2250No.60.13803.505211.000025.4000No.70.15103.83541-1/81.125028.5750No.80.16404.15661-1/41.250031.7500No.90.17704.49581-3/81.375034.9250No.100.19004.82601-1/21.500038.1000No.120.21605.48641-5/81.625041.2750No
6、.140.24206.14681-3/41.750044.4500No.160.26806.80721-7/81.875047.6250No.180.29407.467622.000050.8000No.200.32008.1280 No.240.37209.4488 公称直径与螺距系列表 GB193-63 公称直径d(毫米) 螺 距 l(毫米) 公称直径d(毫米) 螺 距 l(毫米) 第一 系列 第二 系列 第三 系列 粗牙 细 牙 第一 系列 第二 系列 第三 系列 粗牙 细 牙 (28) 2 1.5 1 1 0.25 0.2 30 3.5 (3) 2 1.5 1 0.75 1.1 0.2
7、5 0.2 (32) 2 1.5 1.2 0.25 0.2 33 3.5 (3) 2 1.5 1 0.75 1.4 0.3 0.2 35 (1.5) 1.6 0.35 0.2 36 4 3 2 1.5 1 1.8 0.35 0.2 (38) 1.5 2 0.4 0.25 39 4 3 2 1.5 1 2.2 0.45 0.25 40 (3) (2) 1.5 2.5 0.45 0.35 42 4.5 (4) 3 2 1.5 1 3 0.5 0.35 45 4.5 (4) 3 2 1.5 1 3.5 (0.6) 0.35 48 5 (4) 3 2 1.5 1 4 0.7 0.5 50 (3) (2
8、) 1.5 4.5 (0.75) 0.5 52 5 (4) 3 2 1.5 1 5 0.8 0.5 55 (4) (3) 2 1.5 (5.5) 0.5 56 5.5 4 3 2 1.5 1 6 1 0.75 0.5 58 (4) (3) 2 1.5 7 1 0.75 0.5 60 (5.5) 4 3 2 1.5 1 8 1.25 1 0.75 0.5 62 (4) (3) 2 1.5 9 (1.25) 1 0.75 0.5 64 6 4 3 2 1.5 1 10 1.5 1.25 1 0.75 0.5 65 (4) (3) 1.5 11 (1.5) 1 0.75 0.5 68 6 4 3 1.5 1 12 1.75 1.5 1.25 1 0.75 0.5
