{"id":416551,"date":"2024-10-20T06:11:22","date_gmt":"2024-10-20T06:11:22","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iso-898-22022-tc\/"},"modified":"2024-10-26T11:29:55","modified_gmt":"2024-10-26T11:29:55","slug":"bs-en-iso-898-22022-tc","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iso-898-22022-tc\/","title":{"rendered":"BS EN ISO 898-2:2022 – TC"},"content":{"rendered":"

This document specifies the mechanical and physical properties of nuts made of non-alloy steel or alloy steel, when tested at the ambient temperature range of 10 \u00b0C to 35 \u00b0C. This document applies to nuts: \u2014    with ISO metric thread (see ISO 68-1), \u2014    with diameter\/pitch combinations according to ISO 261 and ISO 262, \u2014    with coarse pitch thread M5 to M39, and fine pitch thread M8\u00d71 to M39\u00d73, \u2014    with thread tolerances according to ISO 965-1, ISO 965-2 or ISO 965-5, \u2014    with specified property classes 04, 05, 5, 6, 8, 10 and 12 including proof load, \u2014    of three different nut styles (see 5.1): regular nuts (style 1), high nuts (style 2) and thin nuts (style 0), \u2014    with a minimum outside diameter or width across flats s ? 1,45D, \u2014    able to mate with bolts, screws and studs with property classes in accordance with ISO 898-1 (see Annex B), and \u2014    intended to be used in applications ranging from \u201350 \u00b0C to +150 \u00b0C, or up to +300 \u00b0C. WARNING \u2014 Nuts conforming to the requirements of this document are tested at the ambient temperature range of 10 \u00b0C to 35 \u00b0C and are used in applications ranging from \u201350 \u00b0C to +150 \u00b0C; however, these nuts are also used outside this range and up to +300 \u00b0C for specific applications. It is possible that they do not retain the specified mechanical and physical properties at lower and\/or elevated temperatures. Therefore, it is the responsibility of the user to determine the appropriate choices based on the service environment conditions of the assembly (see also 7.1). For additional specifications applicable to hot dip galvanized nuts, see ISO 10684. For nuts designed for particular applications, see ISO\/TR 16224. This document does not specify requirements for functional properties such as: \u2014    prevailing torque properties (see ISO 2320), \u2014    torque\/clamp force properties (see ISO 16047 for test method), \u2014    weldability, or \u2014    corrosion resistance.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\ncompares BS EN ISO 898-2:2022 <\/td>\n<\/tr>\n
2<\/td>\nTRACKED CHANGES
Text example 1 \u2014 indicates added text (in green) <\/td>\n<\/tr>\n
3<\/td>\nNational foreword
This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.
Contractual and legal considerations
Compliance with a British Standard cannot confer immunity from legal obligations. <\/td>\n<\/tr>\n
5<\/td>\nForewordEuropean foreword
Endorsement notice <\/td>\n<\/tr>\n
8<\/td>\nForeword <\/td>\n<\/tr>\n
11<\/td>\nIntroduction <\/td>\n<\/tr>\n
12<\/td>\nFasteners \u2014 Mechanical properties of fasteners made of carbon steel and alloy steel \u2014
Nuts with specified property classes \u2014 Coarse thread and fine pitch thread
1 Scope <\/td>\n<\/tr>\n
13<\/td>\nWARNING \u2014 Nuts conforming to the requirements of this document are tested at the ambient temperature range of 10 C to 35 C and are used in applications ranging from \u201350 C to +150 C; however, these nuts are also used outside this range and up to +3…
2 Normative references <\/td>\n<\/tr>\n
14<\/td>\n3 Terms and definitions
4.2.1 General
4.2.2 Regular nuts (style 1) and high nuts (style 2) <\/td>\n<\/tr>\n
15<\/td>\n4.2.3 Thin nuts (style 0)
Table 1 \u2014 Ranges of nominal diameters in relation to nut style and property class
5.1 Nut styles <\/td>\n<\/tr>\n
16<\/td>\n5.2 Property classes
5.2.1 Regular nuts (style 1) and high nuts (style 2)
5.2.2 Thin nuts (style 0) <\/td>\n<\/tr>\n
17<\/td>\n56 Design of bolt and nut assemblies
Table 2 \u2014 Combination of regular nuts (style 1) and high nuts (style 2) with bolt, screw, stud property classes
6 Materials <\/td>\n<\/tr>\n
18<\/td>\nTable 3 \u2014 Steels
7 Material, heat treatment, chemical composition and steel microstructure
7.1 General <\/td>\n<\/tr>\n
19<\/td>\n7.2 Heat treatment
7.3 Chemical composition <\/td>\n<\/tr>\n
21<\/td>\n7.4 Steel microstructure
7.4.1 Non\u2011quenched and tempered nuts
7.4.2 Quenched and tempered nuts <\/td>\n<\/tr>\n
22<\/td>\n7 Mechanical properties
Table 4 \u2014 Proof load values for nuts with coarse thread <\/td>\n<\/tr>\n
23<\/td>\nTable 5 \u2014 Proof load values for nuts with fine pitch thread
Table 6 \u2014 Hardness properties for nuts with coarse thread <\/td>\n<\/tr>\n
24<\/td>\nTable 7 \u2014 Hardness properties for nuts with fine pitch thread
8 Mechanical and physical properties
8.1 General
8.2 Proof load <\/td>\n<\/tr>\n
26<\/td>\n8.3 Hardness <\/td>\n<\/tr>\n
28<\/td>\n8.4 Surface integrity
89 Inspection
8.19.1 Manufacturer’s inspection
8.29.2 Supplier’s inspection
8.39.3 Purchaser’s inspection <\/td>\n<\/tr>\n
29<\/td>\n9.4 Delivery of test results
910 Test methods
9.110.1 Proof load test
9.1.110.1.1 General
9.1.210.1.2 Applicability
9.1.310.1.3 Apparatus
9.1.410.1.4 Testing device <\/td>\n<\/tr>\n
30<\/td>\nFigure 1 \u2014 Axial tensile test <\/td>\n<\/tr>\n
31<\/td>\nTable 8 \u2014 Hole diameter for the grip
Dimensions in millimetres <\/td>\n<\/tr>\n
32<\/td>\n9.1.510.1.5 Test procedure
9.1.610.1.6 Test results and requirements
9.1.7 Requirements <\/td>\n<\/tr>\n
33<\/td>\n9.210.2 Hardness testtests
9.2.1 Applicability
9.2.2 Test methods
9.2.3 Test procedures
9.2.3.1 Test load for hardness determination
9.2.3.2 Hardness determined on a surface
9.2.3.3 Hardness determined on a longitudinal section <\/td>\n<\/tr>\n
34<\/td>\n9.2.4 Requirements
9.2.4.1 Quenched and tempered nuts
9.2.4.2 Non-quenched and tempered nuts
10.2.1 General
Table 12 \u2014 Summary of hardness requirements
10.2.2 Applicability <\/td>\n<\/tr>\n
35<\/td>\n10.2.3 Test methods
10.2.4 Test procedures for routine inspection
a) Hardness determined on the bearing surface
b) Hardness determined on the transverse section <\/td>\n<\/tr>\n
36<\/td>\nFigure 4 \u2014 Hardness determination on the transverse section
10.2.5 Hardness determined in the thread
Table 13 \u2014 Selection of appropriate test force for Vickers hardness test <\/td>\n<\/tr>\n
37<\/td>\n10.2.6 Hardness determined in the core <\/td>\n<\/tr>\n
38<\/td>\nFigure 6 \u2014 Hardness determination in the core
10.2.7 Uniformity of hardness for quenched and tempered nuts (QT)
10.2.8 Requirements for non\u2011quenched and tempered nuts (NQT)
10.2.9 Requirements for quenched and tempered nuts (QT) <\/td>\n<\/tr>\n
39<\/td>\n10.3 Steel microstructure
10.3.1 General
10.3.2 Applicability
10.3.3 Test method
10.3.4 Test results and requirements
10.4 Retempering test
10.4.1 General
10.4.2 Test procedure
10.4.3 Test results and requirements <\/td>\n<\/tr>\n
40<\/td>\n10.5 Surface discontinuity inspection
10 Marking
10.1 General
10.2 Identification mark of the manufacturer
10.3 Marking of property classes
10.3.1 General
10.3.2 Regular nuts (style 1) and high nuts (style 2)
Table 9 \u2014 Marking symbols of property classes for regular nuts (style 1) and high nuts (style 2) <\/td>\n<\/tr>\n
41<\/td>\n10.3.3 Thin nuts (style 0)
Table 10 \u2014 Marking symbols of property classes for thin nuts (style 0)
10.4.1 Hexagon nuts
Figure 5 \u2014 Examples of marking with clock-face system (alternative marking) <\/td>\n<\/tr>\n
42<\/td>\n10.4.2 Other type of nuts
Figure 6 \u2014 Marking of left-hand thread
Figure 7 \u2014 Alternative marking of left-hand thread
11 Marking and labelling
11.1 General requirements <\/td>\n<\/tr>\n
43<\/td>\n11.2 Property class marking symbols for nuts with full loadability <\/td>\n<\/tr>\n
44<\/td>\n11.3 Property class marking symbols for nuts with reduced loadability
Table 15 \u2014 Property class marking symbols for nuts with reduced loadability (e.g. thin nuts)
11.4 Manufacturer\u2019s identification mark
11.5 Nut marking
Figure 7 \u2014 Examples of marking for hexagon nuts with full loadability <\/td>\n<\/tr>\n
45<\/td>\nFigure 9 \u2014 Examples of marking for hexagon nuts with reduced loadability
Figure 10 \u2014 Examples of marking for left\u2011hand thread <\/td>\n<\/tr>\n
46<\/td>\n11.6 Marking of the packages (labelling) <\/td>\n<\/tr>\n
48<\/td>\nTable A.1 \u2014 Minimum heights of hexagon nuts
Table A.2 \u2014 Minimum Vickers hardness suggested for regular nuts (style 1) with D < M5 <\/td>\n<\/tr>\n
50<\/td>\nAnnex A
Thread dimensions of the test mandrel
Table A.1 \u2014 Thread dimensions of the proof load test mandrel \u2014 Coarse pitch thread <\/td>\n<\/tr>\n
51<\/td>\nTable A.2 \u2014 Thread dimensions of the proof load test mandrel \u2014 Fine pitch thread <\/td>\n<\/tr>\n
52<\/td>\nTable B.1 \u2014 Thread dimensions of the proof load test mandrel \u2014 Coarse thread <\/td>\n<\/tr>\n
53<\/td>\nTable B.2 \u2014 Thread dimensions of the proof load test mandrel \u2014 Fine pitch thread <\/td>\n<\/tr>\n
54<\/td>\nAnnex B
Design principles for nuts
B.1 Basic design principles for nuts
WARNING \u2014 Nuts on the market showing vertical bars on each side of the property class symbol (e.g. |8| ) do not fulfil the requirements of this document. <\/td>\n<\/tr>\n
55<\/td>\nTable B.1 \u2014 Minimum height of standard hexagon nuts (without flange and without prevailing torque feature)
B.2 Nuts with diameters D 39 mm <\/td>\n<\/tr>\n
56<\/td>\nAnnex C
Stress under proof load, SP
Table C.1 \u2014 Stress under proof load, SP \u2014 Coarse pitch thread <\/td>\n<\/tr>\n
58<\/td>\nBibliography <\/td>\n<\/tr>\n
62<\/td>\nNational foreword <\/td>\n<\/tr>\n
64<\/td>\nEuropean foreword <\/td>\n<\/tr>\n
67<\/td>\nForeword <\/td>\n<\/tr>\n
69<\/td>\nIntroduction <\/td>\n<\/tr>\n
71<\/td>\n1 Scope <\/td>\n<\/tr>\n
72<\/td>\n2 Normative references
3 Terms and definitions
4 Symbols <\/td>\n<\/tr>\n
73<\/td>\n5 Designation systems
5.1 Nut styles
5.2 Property classes
5.2.1 Regular nuts (style 1) and high nuts (style 2) <\/td>\n<\/tr>\n
74<\/td>\n5.2.2 Thin nuts (style 0)
6 Design of bolt and nut assemblies
7 Material, heat treatment, chemical composition and steel microstructure
7.1 General <\/td>\n<\/tr>\n
75<\/td>\n7.2 Heat treatment
7.3 Chemical composition <\/td>\n<\/tr>\n
77<\/td>\n7.4 Steel microstructure
7.4.1 Non-quenched and tempered nuts
7.4.2 Quenched and tempered nuts
8 Mechanical and physical properties
8.1 General
8.2 Proof load <\/td>\n<\/tr>\n
78<\/td>\n8.3 Hardness <\/td>\n<\/tr>\n
80<\/td>\n8.4 Surface integrity
9 Inspection
9.1 Manufacturer’s inspection
9.2 Supplier’s inspection
9.3 Purchaser’s inspection <\/td>\n<\/tr>\n
81<\/td>\n9.4 Delivery of test results
10 Test methods
10.1 Proof load test
10.1.1 General
10.1.2 Applicability
10.1.3 Apparatus
10.1.4 Testing device <\/td>\n<\/tr>\n
82<\/td>\n10.1.5 Test procedure <\/td>\n<\/tr>\n
83<\/td>\n10.1.6 Test results and requirements
10.2 Hardness tests
10.2.1 General
10.2.2 Applicability
10.2.3 Test methods
10.2.4 Test procedures for routine inspection <\/td>\n<\/tr>\n
85<\/td>\n10.2.5 Hardness determined in the thread <\/td>\n<\/tr>\n
86<\/td>\n10.2.6 Hardness determined in the core <\/td>\n<\/tr>\n
87<\/td>\n10.2.7 Uniformity of hardness for quenched and tempered nuts (QT)
10.2.8 Requirements for non-quenched and tempered nuts (NQT)
10.2.9 Requirements for quenched and tempered nuts (QT)
10.3 Steel microstructure
10.3.1 General
10.3.2 Applicability
10.3.3 Test method <\/td>\n<\/tr>\n
88<\/td>\n10.3.4 Test results and requirements
10.4 Retempering test
10.4.1 General
10.4.2 Test procedure
10.4.3 Test results and requirements
10.5 Surface discontinuity inspection
11 Marking and labelling
11.1 General requirements <\/td>\n<\/tr>\n
89<\/td>\n11.2 Property class marking symbols for nuts with full loadability <\/td>\n<\/tr>\n
90<\/td>\n11.3 Property class marking symbols for nuts with reduced loadability
11.4 Manufacturer\u2019s identification mark
11.5 Nut marking <\/td>\n<\/tr>\n
92<\/td>\n11.6 Marking of the packages (labelling) <\/td>\n<\/tr>\n
93<\/td>\nAnnex A (normative) Thread dimensions of the test mandrel <\/td>\n<\/tr>\n
95<\/td>\nAnnex B (informative) Design principles for nuts <\/td>\n<\/tr>\n
97<\/td>\nAnnex C (informative) Stress under proof load, SP <\/td>\n<\/tr>\n
99<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Tracked Changes. Fasteners. Mechanical properties of fasteners made of carbon steel and alloy steel – Part 2: Nuts with specified property classes<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2022<\/td>\n100<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":416561,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[305,2641],"product_tag":[],"class_list":{"0":"post-416551","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-21-060-20","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/416551","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/416561"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=416551"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=416551"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=416551"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}