SPEC: Black Carbon Steel Eye Bolt Used: Used for industry and constructions Standards: DIN & ANSI & JIS & IFI Material: carbon steel, alloy steel, stainless steel Size: M4-M36,3/8"--7/8" SURFACE: ZINC ,HDG, PLAIN,DAC,GOEMET Thread: unc unf metric Quality control : ISO 9001 Package : Small box ,POLY BAG,Carton+Pallet Payment Term : TT ,LC Or Weston Union Delivery: 20 days or depend on the qty