Ball Head Hinge 1)Materials:Iron 2)3.5"*3" Ball head/0BB 3)Loose pin 4)Usage:Steel doors hinge Ball Head Hinge Hinges Model SizethicknessBall BearingTip3.5''×3'' 2.0mm/2.5mm/2.8mm/ 3.0mm 0BB/1BB/2BB Ball/Flat/Crown/etc. 0 ball bearing hinge, Ball Head Tip Loose pin other types are also available.Surface Treatment:SN/GP/GB/AC/AB/BN/CP etc.Pin:Fixed pin/Loose pin. delivery time:30-45daysWelcome ...