Flat discs with central steel inserts.
10mm(or larger) mounting holes
Thickness 26mm . . . . . . . . . Zincsmart Home
Zinc Order Codes:-
D3 76mm dia. Wt 950g
. . . Price £8.42
D4 105mm Wt 1.45Kg
. . . Price £11.86
D5 128mm Wt 2.54Kg
. . . Price £17.47
D6 154mm Wt 3.2Kg
. . . Price £23.40
Also Aluminium versions of the above
D3 £5.40, D4 £8.10, D5 £12.78, D6 £16.92

D9 (228mm) x 26mm thick Wt 7.5Kg. (similar to ZD55)
with recessed insert . . . . . . . . . . . . Price £55.44
D9H . . . 38mm thick 10.3 Kg. . . . Price £68.56
D9XH . . 44mm thick 12.1 Kg. . . . Price £79.38
11" sizes available.