Part Number 1	Part Number 2	F Flange Head Thickness (in)	Thread Size	Thread Size 2	Price
12FL5K-12MJ90	G60911-1212	0.27	1 1/16-12	1 1/16-12	$63.67 As low as $53.06
16FL5K-12MJ90	G60911-1612	0.32	1 1/16-12	1 1/16-12	$65.63 As low as $54.69
16FL5K-16MJ90	G60911-1616	0.32	1 5/16-12	1 5/16-12	$57.06 As low as $47.73
20FL4K-16MJ90	G60911-2016	0.32	1 1/4	1 5/16-12	$69.38 As low as $57.81
20FL4K-20MJ90	G60911-2020	0.32	1 1/4	1 5/8-12	$154.05 As low as $131.47