Notes :
Head + screw + base
head for 4-mm joints - tabs h 12 mm
25/37/4: adjustable from h 25 to 37 mm
37/61/4: adjustable from h 37 to 61 mm
60/105/4: adjustable from h 60 to 105 mm
94/169/4: adjustable from 94 to 169 mm
150/280/4: adjustable from 150 to 280 mm
239/320/4: adjustable from 239 to 320 mm
