攻牙底孔尺寸计算器
为大多数常用的螺钉计算合适的钻孔尺寸。
首选的量度制
公制
英制
螺钉类型
螺纹类型
M
MF
UNC
UNF
UNEF
BSW
BSF
螺纹尺寸
选择
M1.0x0.2
M1.1x0.2
M1.2x0.2
M1.4x0.2
M1.6x0.2
M1.8x0.2
M2x0.25
M2.2x0.25
M2.5x0.35
M3x0.35
M3.5x0.35
M4x0.5
M4.5x0.5
M5x0.5
M6x0.75
M7x0.75
M8x0.75
M8x1
M9x0.75
M9x1
M10x0.75
M10x1
M10x1.25
M11x0.75
M11x1
M12x1
M12x1.25
M12x1.5
M14x1
M14x1.25
M14x1.5
M15x1
M15x1.5
M16x1
M16x1.5
M17x1
M17x1.5
M18x1
M18x1.5
M18x2
M20x1
M20x1.5
M20x2
M22x1
M22x1.5
M22x2
M24x1
M24x1.5
M24x2
M25x1
M25x1.5
M25x2
M27x1
M27x1.5
M27x2
M28x1
M28x1.5
M28x2
M30x1
M30x1.5
M30x2
M30x3
M32x1.5
M32x2
M33x1.5
M33x2
M33x3
M35x1.5
M35x2
M36x1.5
M36x2
M36x3
M39x1.5
M39x2
M39x3
M40x1.5
M40x2
M40x3
M42x1.5
M42x2
M42x3
M42x4
M45x1.5
M45x2
M45x3
M45x4
M48x1.5
M48x2
M48x3
M48x4
M50x1.5
M50x2
M52x1.5
M52x2
M52x3
M52x4
M55x1.5
M55x2
M55x3
M55x4
M56x1.5
M56x2
M56x3
M56x4
M58x1.5
M58x2
M58x3
M58x4
M60x1.5
M60x2
M60x3
M60x4
M62x1.5
M62x2
M62x3
M62x4
M64x1.5
M64x2
M64x3
M64x4
M65x1.5
M65x2
M65x3
M65x4
M68x1.5
M68x2
M68x3
M68x4
选择
M 1
M 1.2
M 1.4
M 1.6
M 1.8
M 2
M 2.5
M 3
M 3.5
M 4
M 4.5
M 5
M 6
M 7
M 8
M 10
M 12
M 14
M 16
M 18
M 20
M 22
M 24
M 27
M 30
M 33
M 36
M 39
M 42
M 45
M 48
M 52
M 56
M 60
M 64
M 68
选择
#1-64 UNC
#2-56 UNC
#3-48 UNC
#4-40 UNC
#5-40 UNC
#6-32 UNC
#8-32 UNC
#10-24 UNC
#12-24 UNC
1/4-20 UNC
5/16-18 UNC
3/8-16 UNC
7/16-14 UNC
1/2-13 UNC
9/16-12 UNC
5/8-11 UNC
3/4-10 UNC
7/8-9 UNC
1-8 UNC
1 1/8-7 UNC
1 1/4- 7 UNC
1 3/8-6 UNC
1 1/2-6 UNC
1 3/4-5 UNC
2-4 1/2 UNC
2 1/4-4 1/2 UNC
2 1/2-4 UNC
2 3/4-4 UNC
3-4 UNC
3 1/4-4 UNC
3 1/2-4 UNC
3 3/4-4 UNC
4-4 UNC
选择
#0-80 UNF
#1-72 UNF
#2-64 UNF
#3-56 UNF
#4-48 UNF
#5-44 UNF
#6-40 UNF
#8-36 UNF
#10-32 UNF
#12-28 UNF
1/4-28 UNF
5/16-24 UNF
3/8-24 UNF
7/16-20 UNF
1/2-20 UNF
9/16-18 UNF
5/8-18 UNF
3/4-16 UNF
7/8-14 UNF
1-12 UNF
1 1/8-12 UNF
1 1/4-12 UNF
1 3/8-12 UNF
1 1/2-12 UNF
选择
#12-32 UNEF
1/4-32 UNEF
5/16-32 UNEF
3/8-32 UNEF
7/16-28 UNEF
1/2-28 UNEF
9/16-24 UNEF
5/8-24 UNEF
11/16-24 UNEF
3/4-20 UNEF
13/16-20 UNEF
7/8-20 UNEF
15/16-20 UNEF
1-20 UNEF
1 1/16-18 UNEF
1 1/8-18 UNEF
1 1/4-18 UNEF
1 5/16-18 UNEF
1 3/8-18 UNEF
1 7/16-18 UNEF
1 1/2-18 UNEF
1 9/16-18 UNEF
1 5/8-18 UNEF
1 11/16-18 UNEF
选择
1/16 BSW
3/32 BSW
1/8 BSW
5/32 BSW
3/16 BSW
7/32 BSW
1/4 BSW
5/16 BSW
3/8 BSW
7/16 BSW
1/2 BSW
5/8 BSW
3/4 BSW
7/8 BSW
1 BSW
1-1/8 BSW
1-1/4 BSW
1-3/8 BSW
1-1/2 BSW
1-5/8 BSW
1-3/4 BSW
1-7/8 BSW
2 BSW
2-1/4 BSW
2-1/2 BSW
2-3/4 BSW
3 BSW
3-1/4 BSW
3-1/2 BSW
3-3/4 BSW
4 BSW
4-1/4 BSW
4-1/2 BSW
4-3/4 BSW
5 BSW
5-1/4 BSW
5-1/2 BSW
5-3/4 BSW
6 BSW
选择
3/16 BSF
7/32 BSF
1/4 BSF
9/32 BSF
5/16 BSF
3/8 BSF
7/16 BSF
1/2 BSF
9/16 BSF
5/8 BSF
11/16 BSF
3/4 BSF
13/16 BSF
7/8 BSF
1 BSF
1-1/8 BSF
1-1/4 BSF
1-3/8 BSF
1-1/2 BSF
1-5/8 BSF
1-3/4 BSF
2 BSF
2-1/4 BSF
2-1/2 BSF
2-3/4 BSF
3 BSF
3-1/4 BSF
3-1/2 BSF
3-3/4 BSF
4 BSF
4-1/4 BSF
全螺纹 %
50
55
60
65
70
75
80
85
90
95
100
计算所需数据
公制粗牙
标称直径
mm
in
螺距 P
mm
in
每英寸的螺纹
钻孔尺寸
D
=
mm
in