BS 6948:1989

Foreword
Committees responsible
Section one. General requirements
0 Introduction
1 Scope
2 Definitions and graphical symbols
3 Testing machines
4 Test programme
5 Selection of materials
6 Test specimens
7 Conditioning before test
8 Conditions at test
9 Determination of moisture content and relative
    density after test
10 Test report
Section two. Determination of withdrawal strength of
                category A fasteners
11 General
12 Testing machines
13 Test programme
14 Test specimens
15 Conditions at test
16 Procedure
17 Expression of results
18 Test report
Section three. Determination of pull-through strength
                of category A fasteners
19 General
20 Testing machine
21 Testing programme
22 Test specimens
23 Conditions at test
24 Procedure
25 Expression of results
26 Test report
Section four. General requirements for determination
                of lateral strength and stiffness
27 General
28 Testing machine
29 Test specimens
30 Procedure
31 Expression of results
Section five. Determination of lateral strength and
                stiffness of category A fasteners
32 General
33 Testing machine
34 Test programme
35 Test specimens
36 Conditions at test
37 Procedure
38 Expression of results
39 Test report
Section six. Determination of lateral strength and
                stiffness of category B fasteners
40 General
41 Test machine
42 Test programme
43 Test specimens
44 Conditions at test
45 Procedure
46 Expression of results
47 Test report
Section seven. Determination of lateral strength and
                stiffness of category C fasteners in
                timber
48 General
49 Test machine
50 Test programme
51 Test specimens
52 Conditions at test
53 Procedure
54 Expression of results
55 Test report
Section eight. Determination of lateral strength and
                stiffness of category D fasteners in
                timber
56 General
57 Test machine
58 Test programme
59 Test specimens
60 Conditions at test
61 Procedure
62 Expression of results
63 Test report
Appendix
A Advisory procedure for the selection and matching of
    timber for category C and D fasteners
Tables
1 Categories of fasteners
2 Fastener spacings for standard withdrawal test
    specimens
3 Member thicknesses and fastener lengths for lateral
    loading of category A fasteners
4 Standard thicknesses for joint members with category
    B fasteners
5 Standard end and edge distances for category B
    fasteners
Figures
1 Specimens for withdrawal tests
2 Suitable arrangement for withdrawal tests for nails
    and screws
3 Suitable arrangement for pull-through tests
4 Loading procedure
5 Idealized load-slip curve and measurements
6 Timber to timber specimens for lateral loading tests
    on category A fasteners
7 Wood-based board to timber specimens for lateral
    loading tests on category A fasteners
8 Timber to timber specimens for lateral tests on
    category B fasteners
9 Specimens for four bolt tests
10 Arrangement of tension test specimens for fasteners
    of categories C and D. Basic investigation: load
    applied parallel to length of fastener (alpha = 0
    degrees)
11 Arrangement of tension test specimens for fasteners
    of categories C and D: fastener orientation
    investigation
12 Arrangement of shear test specimens for fasteners of
    categories C and D
13 Load cross-head movement curves for shear test
14 Typical matching and cutting plan for members of
    tension test specimens for categories C and D
    fasteners

Determination of the strength and stiffness of mechanical fasteners when used to make joints in timber and/or wood-based materials. Covers the withdrawal strength, pull-through strength and lateral strength of joints and the tension strength and sheer strength of punched metal fasteners.