Image 1 of 3
Image 2 of 3
Image 3 of 3
GRAF utilizes state of the art “HI-LO” screws for the toe section of blades, combined with standard pan head sheet metal screws for the heel, to best secure most blades to GRAF boots with GRAF’s UL Outsoles.
Specifically designed for use with carbon fiber, plastic and other materials, the “HI-LO” screw creates a “double thread” designed to optimize blade mounting in most materials. The customary self-tapping screws are used in the heel where the screws have more depth to secure into the material. The “Hi-Lo” screws are designed to approximate and simulate that adhesion in a much thinner section, as in the toe bed of a figure skating boot by providing twice the thread in a similar length of a single thread screw.
Though we try to provide a screw length which corresponds to most total thicknesses of blade and sole combinations, interior penetration may occur and will need to be adjusted by a professional fitter who can make the appropriate adjustments.
The “Hi-Lo” screws are not “self-tapping” or pointed so the holes must be aligned and predrilled before mounting a blade. Additionally, in situations where blade and sole of boot do not instantly align to form a flat surface, the “Hi-Lo” thread facilitates this.
GRAF “Hi-Lo” screws are state of the art. Made of lightweight alloys, they screw in securely and are rust resistant.
Certain blade mounting plates such as carbon fiber-top ice blades may require different or longer screws. Please see our INSTRUCTION SHEET for recommendations and contact a professional skate tech with any questions.
