The dimensions are as follows:
Length: Lower rod; 9 5/8" (approx 247 mm) x 5/16" (approx 8mm) diameter of which 2" (approx 50 mm) is externally threaded M8 x 1.25 pitch at the tailpiece end - the other (heel) end of the co-ordinator rod is externally threaded M8 x 1.25 pitch
This rod comes with a 1 ¼" (approx 32mm) long nut which is 11mm AF size and is internally threaded M5 x 0.8 pitch at one end, M8 x 1.25 pitch at the other.The long nut secures the lower M5 lag bolt to the heel end of the lower lag bolt
Length: Upper rod; 9 5/8" long (approx 247mm) x 5/16" (approx 8mm) diameter of which 1" (approx 25 mm) is externally threaded M8 x 1.25 pitch - the other end of the co-ordinator rod is tapped M5 x 0.8 pitch to a depth of about 1 ½" (approx 37 mm)
The standard lag bolt is 2 " (approx 50mm) long - ¾" (approx 19mm) of the length is externally threaded M5 x 0.8 pitch, ½" (approx13mm) is plain and the remainder has a coarse wood-screw thread (about a #12 woodscrew); pilot hole between 3.5 mm and 4.5 mm required, depending on the type of timber.
The rods are supplied with 2 lag bolts, 2 x M5 (approx 10mm diameter) thrust washers, 3 x M8 external nuts (13 mm AF) and 3 x M8 external washers (approx 17 mm diameter)
Tailpiece brackets to fit over these rods will be found further down this list with the spare lag bolts and other odds & ends