標(biāo)準(zhǔn)編號(hào):	GB/T 12-1988
中文名稱:	半圓頭方頸螺栓
英文名稱:	Cup head square neck bolts
行業(yè)分類:	GB    國(guó)家標(biāo)準(zhǔn)
發(fā)布機(jī)構(gòu):	中國(guó)機(jī)械工業(yè)聯(lián)合會(huì)
發(fā)布日期:	1988-6-24
實(shí)施日期:	1989-7-1
標(biāo)準(zhǔn)狀態(tài):	superseded
被新標(biāo)準(zhǔn)替代:	GB/T 12-2013 圓頭方頸螺栓
被替代日期:	2014-3-1
翻譯語言:	英文
文件格式:	PDF
中文字符數(shù):	2000 字
翻譯價(jià)格(元):	60.0
交付時(shí)間:	付款后 1 個(gè)工作日

1 Subject Content This standard specifies that thread specification shall be M 6~M 20 step bolts of C level. Notes: varieties of commodity fastening pieces shall be given priority. 2 Normative References GB 196 General Purpose Metric Screw Threads-Basic Dimensions GB 197 General Purpose Screw Threads-Tolerances and Fits GB 2 Fasteners-Ends of Parts with External Thread GB 3098.1 Mechanical Properties of Fasteners-Bolts, Screws and Studs GB 3103.1 Tolerances for Fasteners--Bolts, Screws, Studs and Nuts GB 5267 Electroplated Coatings on Threaded Fasteners GB 1237 Designation System for Fasteners GB 90 Acceptance Inspection, Marking and Packaging of Fasteners 3 Dimensions See the following drawing and Table 1 for the dimension.