The Screw pin chain dee shackle,meet the standard of US FED SPEC RRC-271D,It is Dee type with Screw pin ,used for lifting,the material is Carbon steel & alloy steel .
The bolt shackle,meet the standard of US FED SPEC RRC-271D,It is Dee shackle with Safety bolt pin ,used for lifting ,it is forged alloy high tensile ,the material is Carbon steel & alloy steel .