Thread tables

Thread tables

,
Metric thread£®M£© Metric thread fine£®M£©
Thread Pitch/mm Fdrill diameter Thread Pitch/mm Fdrill diameter
M 2 0.4 1.8 M 4 0.5 3.8
M 2.5 0.45 2.3 M 5 0.5 4.8
M 3 0.5 2.7 M 6 0.75 5.6
M 4 0.7 3.7 M 6 0.5 5.8
M 5 0.8 4.5 M 8 1 7.5
M 6 1 5.3(5.4) M 8 0.75 7.6
M 8 1.25 7.3(7.4) M 10 1.25 9.3
M 10 1.5 9.2(9.3) M 10 1 9.5
M 12 1.75 10.9 M 12 1.5 11.2
M 16 2 14.8 M 12 1 11.5
M 20 2.5 18.7 M 16 1.5 15.2
M 16 1 15.5
M 20 1.5 19.2
M 20 1 19.5
US thread UNF US thread UNC
Thread Thread perinch Fdrill diameter Thread Thread perinch Fdrill diameter
No. 4 48 2.6 No. 4 40 2.5
No. 5 44 2.9 No. 5 40 2.9
No. 6 40 3.2 No. 6 32 3.1
No. 8 36 3.9 No. 8 32 3.8
No. 10 32 4.4 No. 10 24 4.3
No. 12 28 5 No. 12 24 4.9
1/4 28 5.9 1/4 20 5.7
5/16 24 7.4 5/16 18 7.2
3/8 24 9 3/8 16 8.7
7/16 20 10.4 7/16 14 10.2
1/2 20 12.1 1/2 13 11.7
9/16 18 13.6 9/16 12 13.2
5/8 18 15.2 5/8 11 14.7
3/4 16 18.3 3/4 10 17.8
BSP thread US thread NPT
Thread Thread perinch Fdrill diameter ThreadThread perinch Fdrill diameter
G1/16" 28 7.3 1/16" 27 7
G1/8" 28 9.2 1/8" 27 9.4
G1/4" 19 12.4 1/4" 18 12.4
G3/8" 19 15.9 3/8" 18 15.8
G1/2" 14 19.9 1/2" 14 19.6
G3/4" 14 25.4 3/4" 14 24.9
G1" 11 31.9 1" 11.5 31.4

Zhuzhou Fdrill Industry and Trade Co., Ltd. Address: Hetang District,Zhuzhou City, Hunan Province, China
Tel :+86-731-22960026 Fax :+86-731-22961166 E-mail:fdrill@fdrill.com Website: www.fdrill.com


Copyright © Zhuzhou Fdrill Industry and Trade Co., Ltd. All rights reserved