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Thread Calculator
Tools
Bolt Circle Calculator
Calculate exact Cartesian (X/Y) coordinates for a bolt hole pattern.
Inputs
Bolt Circle Diameter (PCD)
Number of Holes
Start Angle (Deg)
Center X
Center Y
Calculate
Reset
Details:
Start angle of 0° corresponds to the 3 o'clock position (positive X-axis if center is 0,0). Angles progress counter-clockwise.
Hole Coordinates
Hole
X Dim
Y Dim