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