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Alloy Wheel Nuts & Bolts Sizing Guide: Thread Pitch, Seating & Hex
Master wheel fastener sizing and seating geometry. Comprehensive guide covering M12 vs M14 thread pitch, 60-degree taper vs radius vs flat captive washers, Ford Transit commercial van specs (M14x2.0), Peugeot/Citroen flat-seat bolts, and extended spacer calculations.