Type XHB-013 Container bolt seals Material A3 Steel and ABS plastic. Size 1.8mm diameter steel perch. The height of male and female: 86mm X 37mm The bottom size of both male and female: 21mm X 21mm 2.Strengh: Dia:8.0mm Test Strength:F>1480KG(14.5KN) 3.Removable by bolt cutters. http://www.xhseals.com/