Performance Ball Race Hinges - Solid Brass - Bronze (Pack 2) Performance ball raced hinges are made to the highest specification from solid drawn brass and brass pins to guarantee no rust and a long lasting finish. They are ideal for heavy high quality doors in domestic applications. Featuring 4 ball bearing raced knuckles to prevent knuckle wear and provide a lifetime of silent, smooth door operation. Fixings included. Specification MOQ Increment 1 Thickness (mm) 2.5 Corrosion Rating (1-5) 4 - Urban & industrial areas with a moderate salt atmosphere Pack Dimensions L x W x H (mm) 120 x 44 x 20 L (inch) 3 Corner Type Square L (mm) 76 Length x Width (mm) 76 x 50 Max. Door Weight (kg) 40 Rec. Screw Ø (mm) 4 Rec. Screw Gauge (imp.) 8 Screw Size (imp.) 8 x 1 MOQ 1 Knuckle Ø (mm) 8 Hole Ø (mm) 5.2 Knuckle Type Ball Bearing Finish Bronze Pack Weight (kg) 0.22 Screw Size (mm) 4.0 x 25 Material Solid Brass Packs per Carton 80 Brand TIMCO