Generally used in storage structures to tie a centre upright to four horizontal tubes, all at 90° to the upright.

Consideration must be given to the grub screw at loads greater than 900kg.

BS 1387

Storage Fittings

The following ratings tables indicate:,Table 1: Beam loading (kg),Table 2: Upright load table (fixed) (kg),Table 3: Upright load table (un-fixed) (kg).,Table 1 indicates the safe uniformly distributed load in kg. that may be carried by a shelf supported by a pair of tubes when used as continuous beams.,Tables 2 and 3 indicate the safe loads in kg that may be carried by single fixed, or single un-fixed upright tubes to BS1387 (ISO 65). Safety factor 1.74