Square head machine bolt
1> Decription: Square Bolt 
2> Material: Steel, stainless steel 
3> Surface: HDG, Zinc plated

4> Size: M10 up to M16(5/8") 
5> Length: Up to 150mm 
6> Mechanical Properties: Class6, 8 Grade 2, 5 
7> Packing: Poly bags or carton with pallet or per as you requirement 

Customer's Design and Logo are Welcome 

Our company are with the a corresponding procedures for dealing with customers' complaint. We have the responsible QC, Engineers and after sale worker to deal with such things. In case this thing happened, we will deliver the right things free of charges under normal conditions.