m1-m45螺纹的螺距

Question

细牙和粗牙要区别的。。。。谢谢

Answer 1

螺纹直径与螺距对照表：

在圆柱或圆锥母体表面上制出的螺旋线形的、具有特定截面的连续凸起部分。螺纹按其母体形状分为圆柱螺纹和圆锥螺纹；按其在母体所处位置分为外螺纹、内螺纹，按其截面形状（牙型）分为三角形螺纹、矩形螺纹、梯形螺纹、锯齿形螺纹及其他特殊形状螺纹。

螺距，螺纹上相邻两牙对应点之间的轴向距离。航模/直升机航模中的螺距：螺旋桨旋转过程中，同一片桨叶旋转一圈所形成的螺旋的距离。

Answer 2

公制Metric美制UNC美制UNF
尺寸
Size标准牙
Standardd底孔
Hole细牙
Fine特细牙
ExtraFine尺寸
Size标准牙数
Threads/in底孔
Hole尺寸
Size标准牙数
Threads/in底孔
Hole
M10.250.75#1641.55#0801.30
M20.401.60#2561.83#1721.60
M2.50.452.05#3482.10#2641.90
M30.502.50#4402.35#3562.10
M40.703.30#5402.65#4482.40
M50.804.20#6322.85#5442.70
M61.005.00#8323.50#6403.00
M71.006.00#10243.90#8363.50
M81.256.801.00#12244.50#10324.10
M91.257.801.001/4"205.20#12284.70
M101.508.501.251.005/16"186.601/4"285.50
M121.7510.201.501.253/8"168.005/16"246.90
M142.0012.001.507/16"149.403/8"248.50
M162.0014.001.501/2"1310.807/16"209.90
M182.5015.501.509/16"1212.201/2"2011.50
M202.5017.501.505/8"1113.509/16"1812.90
M222.5019.502.003/4"1016.505/8"1814.50
M243.0021.002.001.507/8"919.503/4"1617.50
M273.0024.002.001.501"822.257/8"1420.25
M303.5026.502.0011/8"725.001"1223.25
M333.5029.502.001.5011/4"728.2511/8"1226.50
M364.0032.0013/8"630.7511/4"1229.50
M424.5037.5011/2"634.0013/8"1232.50
M485.0043.0013/4"539.5011/2"1236.00
2"41/245.00

Answer 3

公制 Metric 美制 UNC 美制 UNF
尺寸
Size 标准牙
Standard d 底孔
Hole 细牙
Fine 特细牙
Extra Fine 尺寸
Size 标准牙数
Threads/in 底孔
Hole 尺寸
Size 标准牙数
Threads/in 底孔
Hole
M1 0.25 0.75 # 1 64 1.55 # 0 80 1.30
M2 0.40 1.60 # 2 56 1.83 # 1 72 1.60
M2.5 0.45 2.05 # 3 48 2.10 # 2 64 1.90
M3 0.50 2.50 # 4 40 2.35 # 3 56 2.10
M4 0.70 3.30 # 5 40 2.65 # 4 48 2.40
M5 0.80 4.20 # 6 32 2.85 # 5 44 2.70
M6 1.00 5.00 # 8 32 3.50 # 6 40 3.00
M7 1.00 6.00 # 10 24 3.90 # 8 36 3.50
M8 1.25 6.80 1.00 # 12 24 4.50 # 10 32 4.10
M9 1.25 7.80 1.00 1/4" 20 5.20 # 12 28 4.70
M10 1.50 8.50 1.25 1.00 5/16" 18 6.60 1/4" 28 5.50
M12 1.75 10.20 1.50 1.25 3/8" 16 8.00 5/16" 24 6.90
M14 2.00 12.00 1.50 7/16" 14 9.40 3/8" 24 8.50
M16 2.00 14.00 1.50 1/2" 13 10.80 7/16" 20 9.90
M18 2.50 15.50 1.50 9/16" 12 12.20 1/2" 20 11.50
M20 2.50 17.50 1.50 5/8" 11 13.50 9/16" 18 12.90
M22 2.50 19.50 2.00 3/4" 10 16.50 5/8" 18 14.50
M24 3.00 21.00 2.00 1.50 7/8" 9 19.50 3/4" 16 17.50
M27 3.00 24.00 2.00 1.50 1" 8 22.25 7/8" 14 20.25
M30 3.50 26.50 2.00 1 1/8" 7 25.00 1" 12 23.25
M33 3.50 29.50 2.00 1.50 1 1/4" 7 28.25 1 1/8" 12 26.50
M36 4.00 32.00 1 3/8" 6 30.75 1 1/4" 12 29.50
M42 4.50 37.50 1 1/2" 6 34.00 1 3/8" 12 32.50
M48 5.00 43.00 1 3/4" 5 39.50 1 1/2" 12 36.00
2" 4 1/2 45.00