External use lock washers (also called star washers) have teeth made to bite into the bearing surface. an external tooth lock washer is designed to provide stronger holds than internal-tooth washers as the teeth bite into a larger radius, and are best suited to large screws. a tooth lock washer can leave scratches on their attaching surfaces.
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Grade 5 screws are used in small engines. grade 8 screws provide high tensile strength. one advantage cap screw fasteners have over welds or rivets is that they allow for easy disassembly for repairs and maintenance. ... stainless steel (3053) steel ... no results found. a2 (684) a4 (566) b7 (24) 18-8 (1134) 316 (692) a307a (187) 316h5 (23 ...
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