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Factory supply fasteners carbon steel antiskid-...
This product is composed of antisked shark fin pipe, one expansion bolt, one hex nut, one spring washer and one flat washer. The material of this product is Iron or Carbon steel, which the grad has 4.8, 6.8, 8.8, and 10.9. The color always is yellow and furface treatment with zinc,but also can according to customer’s requirements.