Scaffolding Formwork Tie Tod Wing Nut for Construction

1).materail: ductile iron material 40-50 or cast iron

2).Surface treatment: black or galvanized

3).weight:430g,470g,550g,600g and so on

4).base plate: 80mm 90mm 100mm OR 110mm

5).hole diameter:17mm or 15mm 

6).two wings or three wings