Standard No.:	GB/T 13681-1992
English Name:	weld nuts
Chinese Name:	焊接 六角螺母
Chinese Classification:	J13    Fastener
Professional Classification:	GB    National Standard
ICS Classification:	21.060.20 21.060.20    Nuts 21.060.20
Issued by:	AQSIQ
Issued on:	1992-9-22
Implemented on:	1993-6-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	2000 words
Price(USD):	60.00
Delivery:	via email in 1 business day

Hexagon weld nuts



1 Subject content and application scope



This standard specifies the types, dimensions and technical conditions of hexagon weld nuts with thread specifications of M4~M16.



This standard is applicable to weld nuts for connection of weldable steel plates.



2 Normative references



GB 90 Acceptance inspection, marking and packaging of fasteners

GB 196 General purpose screw threads - Basic dimensions for diameter from 1 to 600mm

GB 197 General purpose screw threads - Tolerances and fits for diameter from 1 to 355mm

GB 1237 Designation system for fasteners

GB 3098.2 Mechanical properties of fasteners - Nuts

GB 3103.1 Tolerances for fasteners - Bolts, screws and nuts

GB 5267 Electroplated coatings on threaded fasteners

GB 5779.2 Fasteners - Surface discontinuities - Nuts - General requirements

GB 12212 Technical drawings - Dimensions, proportions and simplified representation for welding symbols



3 Types and dimensions



Types and dimensions are as specified in Figure 1 and Table 1.

1 Subject content and application scope
2 Normative references
3 Types and dimensions
4 Technical conditions
5 Representation method of weld nuts
6 Steel plates for welding
7 Marking
Annex A Weight of hexagon weld nuts (Informative)