BS 3951-1.2:1985

National foreword
Committees responsible
Specification
0. Introduction
1. Scope and field of application
2. References
3. Dimensional requirements
4. Strength requirements
5. Design requirements
6. Minimum bearing area - Top corner fitting
7. Corner fitting marking
Annexes
A. Examples of overall dimensions of box-shaped
    corner fittings
B. Typical examples of twistlock lifting devices
C. Guide on the choice of sizes for, and the
    positioning of, twistlock tie-down devices for
    securing series 1 freight containers to carrying
    vehicles
Tables
1. Nominal centre-to-centre distances for positioning
    of twistlock collars
2. Tolerance (tst) on the longitudinal centre-to-centre
    distance between collars (St) and the tolerance (tpt)
    on the lateral centre-to-centre distance between
    collars (Pt)
3. 'Practical' dimensions proposed by the USA
4. Dimensions and tolerances of arrangements for a
    gooseneck chassis
5. Basic data
6. Twistlock collars (spigots) having length (diameter)
    95.0 mm, width 55.0 mm, v = 13.0 mm, w = 4.0 mm
7. Twistlock collars (spigots) having length (diameter)
    97.0 mm, width 56.0 mm, v = 12.0 mm, w = 3.5 mm
8. Twistlock collars (spigots) having length (diameter)
    100.0 mm, width 56.0 mm, v = 10.5 mm, w = 3.5 mm
Figures
1. Top corner fitting - Dimensions in millimetres
2. Top corner fitting - Dimensions in inches
3. Bottom corner fitting - Dimensions in millimetres
4. Bottom corner fitting - Dimensions in inches
5. Limits of loads due to lashing and securing
6. Bottom view of bottom corner fitting showing contact
    area (shaded) for misgather (push-up) load
7. Example of tape-sided twistlock
8. Example of parallel-sided twistlock
9. Typical four twistlock chassis
10. Typical gooseneck container chassis
11. 1AA, 1A and 1AX gooseneck chassis interface
    dimensions