Alumina ceramic fasteners are now available from mechanical drive components specialist, Rino Industries Ltd of Chesterfield.
This special material enables continuous use at 1500ºC offering excellent electrical insulation and resistance against heat and chemicals. They may be used in heat resistant applications such as hot water and chemical pumps as well as electronic applications such as electrical transformers and computer equipment but as heat and chemical resistance varies with the usage environment, it is necessary to test in advance under actual conditions. As with all ceramics, care must be taken when handling, as ceramic screws do break easily the company states.
Slotted flat fillister head machine screws, hexagon headed bolts, hexagon and Dihedral nuts are all available as standard and sizes range from M3 to M10.
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