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