[APPLICATION] Fits for Northbridge. Used for over 90% radiator and cooling block. [MATERIAL] Made of stainless steel material, sturdy and durable. [BUCKLE SIZE] Length: 83mm/3.27inch; Mounting Hole Distance (Approx.): 29-80mm/1.14-3.15inch. [SCREW & NUTS SIZE] Screw Size: M3 x 36mm (Thread SizeLength); Round Nut Size: M2 x 4mm (Thread SizeThickness); Hex Nut Size: M3 x 2mm (Thread Size*Thickness). [PACKAGE CONTENT] 1 x Layering Buckle; 2 x Screws; 2 x Round Nuts; 2 x Hex Nuts; 2 x Spring; 4 x O Ring.