RAIMONDI RAI-FIX SAFETY WITHHOLDING HOOKS 8MMMechanical support system for minimum 3/8" thick tile/slab - 5/16" Wing SizeThe safety withholding hook, of RAI-FIX is made of stainless steel and can be used with tile slabs with a minimum thickness of 1/4" (6mm)It is the perfect solution because it is completely invisible once the facade is installes.When installing tiles/slabs bigger that 12" (being them in ceramic, porcelain or natural stone) in façade with adhesive, it is required to use a mechanical safety system which prevents the tile / slab to fall down in the event of detachment of the adhesive.*Indeed adhesives guarantee perfect anchorage of the tile/slab only if perfectly applied. But this is not always the case.In addition to that, it is hard to predict the strains the tile/slab will have to bear because of building's settlement as well as expansion for temperature range, extreme weather conditions, earthquake and so on…Aesthetically speaking, RAI-FIX is the perfect solution since it is completely invisible once the façade is done. In fact RAI-FIX has to be placed between the tile / slab and the wall and therefore it is 100% hidden.-- Tensile strength laboratory tests gave the following result: 163 lbs. -- With 10 holes Ø 5/16" and one hole Ø 9 1/3" for inserting the anchor screw. -- Made in premium quality stainless steel. -- With the RAI-FIX installation of large tiles and slabs on a vertical surface is very simple and carried out directly on the job site. -- The safety withholding hook is a simple and effective device that prevents the tile of slab from falling down in the event of detachment. -- The safety withholding hook, of RAI-FIX is made of stainless steel and can be used with tile slabs with a minimum thickness of 3/8" (8mm)