For SA2015 helmets, the Snell foundation has required all helmets to have an M6 nutwasher installed in the helmet. This allows helmet makers to permanently bond a nutwasher inside their helmets. This makes attaching a HANS Device helmet anchor easier as you simply screw the anchor into the helmet. As you know from past anchors, the point of the post anchor and the tethers of the HANS Click Quick anchors should point rearward after installation. Older helmets with a moveable nutwasher inside the helmet can orient the anchor by rotating this inner nutwasher. As this is not possible with the SA2015 fixed nutwashers, HANS has designed a collar system that can be rotated from outside the helmet. These anchors ship with a small wrench designed to facilitate this feature.
If you have an SA2005 or SA2010-rated helmet (not SA2015 rated), you can use the collar-style anchors but will most likely require the nutwashers that need to be installed inside the helmet. If the holes in your helmet are threaded, you should not need the nutwashers – call us if you have questions!