Standard No.:	GB/T 14-2013
English Name:	Mushroom head square neck bolts
Chinese Name:	扁圆头方颈螺栓
Chinese Classification:	J13    Fastener
Professional Classification:	GB    National Standard
ICS Classification:	21.060.10 21.060.10    Bolts, screws, studs 21.060.10
Source Content Issued by:	AQSIQ;SAC
Issued on:	2013-6-9
Implemented on:	2014-3-1
Status:	valid
Superseding:	GB/T 14-1998 head square neck bolts with large head - Product grade C
Target Language:	English
File Format:	PDF
Word Count:	4000 words
Translation Price(USD):	100.0
Delivery:	via email in 1 business day

Mushroom head square neck bolts 1 Scope This standard specifies mushroom head square neck bolts with threads from M5 up to and including M20, of product grade C. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 2 Fasteners - Ends of parts with external thread GB/T 90.1 Fasteners - Acceptance inspection GB/T 90.2 Fasteners - Marking and packaging GB/T 196 General purpose metric screw threads - Basic dimensions GB/T 197 General purpose metric screw threads - Tolerances GB/T 1237 Designation system for fasteners GB/T 3098.1 Mechanical properties of fasteners - Blots, screws and studs GB/T 3098.6 Mechanical properties of fasteners - Stainless steel Bolts, screws and studs GB/T 3103.1 Tolerances for fasteners - Bolts, screws, studs and nuts GB/T 5267.1 Fasteners - Electroplated coatings GB/T 5267.3 Fasteners - Hot dip galvanized coatings GB/T 5276 Fasteners - Bolts, screws, studs and nuts - Symbols and descriptions of dimensions GB/T 16938 Fasteners - General requirements for bolts, screws, studs and nuts 3 Dimensions See Figure 1 and Table 1 for the type dimensions. Symbols and designation method of dimensions shall meet the requirements of GB/T 5276.

Foreword i 1 Scope 2 Normative references 3 Dimensions 4 Technical conditions and normative references 5 Designation