Two standard backsets are 2-3/8” and 2-3/4”. Stud Size: 1/2-RH Hub Center Bore: 78.3 Offset: L > Bolt Pattern Details and Matching Vehicles OEM Wheel Size(s): 15 X 6 15 X 7 Look-up: Spacers ~ Adapters ~ Wheels/Tires Torque Sequence: 1, 3, 5, 2, 4 75 to 85 lb-ft. 8 Turns Minimum Find which cars have a specific PCD and center bore. Hub Diameter: Also called the center bore, this is the measurement of the hole at the center of the wheel. Most custom and aftermarket wheels are created with a center opening that will fit a variety of automobiles. Select your vehicle to find the bolt pattern and the centre bore size. When shopping for wheels or hub centric rings, it’s important to know the center bore … Center bore is the hole at the middle of the wheel on the hub of the car. I went and drove ~100km/hour on the perimeter to test her out ran with no wobles.should I be concerned? Advertisement. Nominal ½ inch or 5/8 carburetor, center to center 1 13/16 on mounting bolts, bore size approximately 13/16 inch. iPhone App. Advertisement. [citation needed] Always check your owner's manual or call your local car dealership to confirm the bolt pattern on your vehicle.Over the years, over 30 different bolt patterns have been used by car manufacturers, with most of the different bolt patterns being … Search by PCD. ANSI Hardware Design Guides ISO Metric Hardware Design Guides. Wheels are manufactured in huge numbers, they are not made with any vehicle’s center bore in mind, hence hub rings are always recommended. Just bought the set of rims/tires from steve,but when mounting them I noticed there is a bout 2-3mm of play i.e. Some of the most common BCD values are 100 mm (≈3.94 inches), 112 mm (≈4.41 inches), and 114.3 mm (4.5 inches). The center bore measurement of a wheel is the size of the hole on the backside of the wheel, usually measured in millimeters (mm). Other backsets include 2”, used by National and Lori Lock, and 5” used by Weiser, Weslock, Kwikset and others. Two standard backsets are 2-3/8” and 2-3/4”. The more common sizes found on automobiles are listed below. Bore size is listed as approximate, as some carburetors were much more efficient than others. Advertisement. The center bore indicates the size of the center circle of the hub of the rim. by the make and model of your car. Center Bore. ... angularity between the axis of the tapped hole and that of the hole for the shank, differences in center distances of the mating holes, etc. Drill and Counterbore Sizes for Socket Head Cap Screws per. Backset The distance from the edge of the door to the center of the lock bore. Some wheels are designed to fit multiple vehicle models and will use a centering ring system to reduce the bore size to match the hubs of different vehicles. In some countries, this is also referred to as spigot size. 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