These units provides a very handy method of making a negative / earth commoning block 

Machined from solid brass which is then nickel plated

Accepts cables up to 6.50mm diameter in the larger apertures on either side
(16 way has 4 x 6.50mm apertures, 8 way has 2 x 6.50mm apertures. The hole centres are at 9mm intervals)

Accepts cables up to 5.50mm diameter in the remaining apertures.

 Two 5.00mm countersunk holes are provided for securing the unit to a flat surface

16 way dimensions :-

Length 88.00mm

Width 18.50mm

Height 12.00mm (excluding screws)

8 way dimensions:-

Length 52.00mm

Width 18.50mm

Height 12.00mm (excluding screws)