GB/T 802.5-2009Prevailing torque type hexagon acorn nuts with non-metallic insert -- Welding type (English PDF)

Foreword

This section is one of the national standard "cap nut" series. The series includes.

a) GB/T 802.1 domed cap nut;

b) GB/T 802.2 hex cap nut welded;

c) GB/T 802.3 hex flange cap nut welded;

d) GB/T 802.4 Hexagon low spherical cap nut welded;

e) GB/T 802.5 metallic insert hexagon cap nut welded;

f) GB/T 923 Hexagon cap nut.

This section is GB/T 802 - Part 5.

The partial modification using DIN986:2000 "metallic insert Prevailing torque type hexagon cap nut" (in English), the main repair Changed as follows.

--- Normative reference document, with instead of equivalent or modify our standard German or international standards adopted (Chapter 2);

--- DIN986 nut cover thickness delta unspecified size, the provisions of this section shall be (see Figure 1, Table 1);

--- DIN986 unspecified packaging technology requirements, the provisions of this section shall be (see Table 2);

--- DIN986 unspecified simplified mark, according to this part of GB/T 1237 presents a simplified markup example (see 5.2).

This section is GB/T 802 - Part 5.

This part is proposed by China Machinery Industry Federation.

This part of the National Standardization Technical Committee under the jurisdiction of the fastener.

This section is responsible for drafting units. the machine Productivity Promotion Center, Zhangjiagang City Arts Co., Ltd.

Non-metallic insert hexagon cap nut welded

1 Scope

This section GB/T 802 specifies the thread size is M4 ~ M20, property class 5,6,8,10 level, product grade A and B the welded metallic insert hexagon cap nut. A grade for D<=16mm; class B for D > 16mm nut.

2 Normative references

The following documents contain provisions which, through reference GB/T 802 of this text, constitute provisions of this section. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section.

GB/T 90.1 fasteners acceptance inspection (GB/T 90.1-2002, ISO 3269:2000, IDT) GB/T 90.2 Fasteners marking and packaging GB/T 196 common thread basic size (GB/T 196-2003, ISO 724:1993, ISO generalpurposemetric screwthreads-Basicdimensions, MOD) GB/T 197 common thread tolerance (GB/T 197-2003, ISO 965-1:1998, ISO generalpurposemetric screwthreads-Tolerances-Part 1. Principlesbasicdata, MOD) GB/T 1237 fasteners labeling method (GB/T 1237-2000, eqv ISO 8991. 1986) GB/T 3098.2 Mechanical properties of fasteners - Nuts - Coarse thread (GB/T 3098.2-2000, idt ISO 898-2:1992) GB/T 3098.4 Mechanical properties of fasteners fine thread (GB/T 3098.4-2000, idt ISO 898-6:1994) GB/T 3098.9 Mechanical properties of fasteners torque type steel hexagon nuts (GB/T 3098.9-2002, idt ISO 2320.

1997)

GB/T 3103.1 Tolerances for fasteners - Bolts, screws and nuts (GB/T 3103.1-2002, ISO 4759-1:2000, IDT) GB/T 5267.1 fasteners plating layer (GB/T 5267.1-2002, ISO 4042:1999, IDT) GB/T 5267.2 fasteners non-electrolytic zinc flake coating (GB/T 5267.2-2002, ISO 10683:2000, IDT) GB/T 5276 Fasteners Bolts, screws, studs and nuts - Symbols and designations size (GB/T 5276-1985, eqv ISO 225.

1983)

GB/T 5779.2 nut fastener surface defects (GB/T 5779.2-2000, idt ISO 6157-2:1995) GB/T 16938 Fasteners Bolts, screws, studs and nuts - General technical conditions (GB/T 16938-2008, ISO 8992.

2005, IDT)

3 Dimensions

Nut pattern dimensions shown in Figure 1 and Table 1.

Size code and labeling in line with GB/T 5276.