Stainless Steel Type 316 Commercial Marine Grade excellent for Indoor and Outdoor,Superior strength & rust resistance over grade 304, Galvanized and Cast Iron. Strong and durable
The shackle wire diameter about body and pin are same size 5/16"
These wide D shackles have a large gate opening which makes attaching to the adjustment clasp, or other equipment very easy
The small shackle inside width is 18mm,the length is 29mm.