Dimensions for Form D Washers

Bolt Size	Inside Diameter	Outside Diameter	Thickness
M6	6.4mm	14.0mm	0.8mm
M8	8.4mm	21mm	1.0mm
M10	10.5mm	24mm	1.25mm
M12	13mm	28mm	1.6mm
M14	15mm	30mm	1.6mm
M16	17mm	34mm	2.0mm
M18	19mm	37mm	2.0mm
M20	21mm	39mm	2.0mm
M24	25mm	50mm	2.5mm