The vast majority of our holds are ‘dual-fixing’ and can be used as screw-on or bolt-on. This great versatility allows setters to place the holds exactly where they’re needed in order to create their envisioned masterpiece.
The holds take both countersunk and cap-head M10 bolts. On thinner holds, we advise the use of countersunk bolts over cap-head, as they help to evenly distribute any stress which may be applied to the hold whilst setting.
If using a bolt, we recommend that one of the screw holes be used to pin the hold to stop it rotating. A 5mm screw, with a full-length thread, should be used. We recommend that the bolt protrudes at least 25mm from the back of the hold when seated in the countersink or on the flathead.
The surface to which you fix the hold should be flat. If it isn’t the hold may rotate or break.
Bolts in small and medium sized holds should be tightened to 25Nm.
Bolts in larger holds should be tightened to 35Nm.
For smaller ‘screw ons’ we recommend that you don’t use an impact driver as this runs the risk of breaking the hold.