GB/T 28253-2012 English PDF

US$399.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 28253-2012: Thread forming tap
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 28253-2012	399	Add to Cart	3 days	Thread forming tap	Valid

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Basic data

Standard ID: GB/T 28253-2012 (GB/T28253-2012)
Description (Translated English): Thread forming tap
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J41
Classification of International Standard: 25.100.50
Word Count Estimation: 17,119
Quoted Standard: GB/T 192; GB/T 193; GB/T 196; GB/T 197; GB/T 4267
Regulation (derived from): Announcement of Newly Approved National Standards No. 1 of 2012
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the extrusion tap (high -level and ordinary level) of the type size, thread tolerance, technical requirements, marking and packaging of the basic requirements. This standard applies to the non-ferrous metal and low intensity black

GB/T 28253-2012: Thread forming tap

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Thread forming tap ICS 25.100.50 J41 National Standards of People's Republic of China Squeeze taps 2012-03-09 release 2012-07-01 Implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed by the China Machinery Industry Federation. This standard is under the jurisdiction of the National Tool Standardization Technical Committee (SAC/TC91). The drafting of this standard. Shanghai Tools Factory Co., Ltd. The main drafters of this standard. Yu Mao Di. Squeeze taps

1 Scope

This standard specifies the type, size, thread tolerances, technical requirements, marking and packaging of extruded tap (high performance grade and general grade) This requirement. This standard applies to non-ferrous metals and low-strength ferrous metal parts on the nominal diameter of 1mm ~ 27mm ordinary thread (GB/T 192, GB/T 193, GB/T 196, GB/T 197). When the thread is machined, the dimensions of the prefabricated hole are shown in Fig Appendix B. The standard taper thread tolerance zone of this standard is divided into H1, H2, H3, H4, where H4 is usually a non-polished taps.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. GB/T 192 General thread basic tooth type Common thread diameter and pitch series GB/T GB/T 196 Common thread basic dimensions Common thread tolerances GB/T 197 GB/T 4267 Straight handle rotary tool Shank diameter and size of the drive head

3 Taps of the type and size

3.1 thick handle squeeze taps in accordance with the provisions of Figure 1 and Table 1, Table 2. figure 1 ......

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