Home / Retail Showroom / 1/2in-20 Plain Flanged Nut 12N 1/2in-20 Plain Flanged Nut 12N 1/2″-20 plain flanged nut. This nut is used on many standard 1/2 u-bolts. • 1/2″-20 Category: Retail Showroom Product ID: 3128 Related products CASTLE® POWER STEERING FLUID & CONDITIONER Buy now DEXTER 23-106 ELECTRIC BRAKE ASSEMBLY RH 12″ 6K Buy now 1.719 x 2.565 3.5-4.4k Grease Seal Dbl Lip 10-19 Buy now DEXTER 23-27 ELECTRIC BRAKE ASSEMBLY RH 10″ 3.5K Buy now