... Material:carbon steel 2. Grade:4.6, 4.8 3. Finish:plain, black, zinc, hdg Boat Spike, also named Dog Spike or ... world. 1.Raw Materialcarbon steel, stainless steel, alloy, brass2. Grade4.6, 4.83. Finishplain, black, zinc, hdg4. CertificateISO 9001-2000 Looking ...