Standard No.:	GB/T 9144-2025
English Name:	General purpose metric screw threads—Preferable plan
Chinese Name:	普通螺纹 优选系列
Chinese Classification:	J04    Basic standards and general methods
Professional Classification:	GB    National Standard
ICS Classification:	21.040.10 21.040.10    Metric screw threads 21.040.10
Source Content Issued by:	SAMR; SAC
Issued on:	2025-05-30
Implemented on:	2025-12-1
Status:	valid
Superseding:	GB/T 9144-2003 General purpose metric screw threads―Preferable plan
Target Language:	English
File Format:	PDF
Word Count:	7000 words
Translation Price(USD):	210.0
Delivery:	via email in 1~3 business day

本文件规定了普通螺纹（一般用途米制螺纹M）的优选系列，此系列是从GB/T 193所规定的普通螺纹标准系列中优选出来的，其公称直径范围为1 mm ~ 100 mm，普通螺纹的牙型符合GB/T 192的规定。
本文件适用于螺栓、螺钉、螺柱和螺母及一般机械工程所选用的米制紧固螺纹。