Quick view Add to Wishlist Keystone Threaded Products 100 1-3/8 - 16 Int Thread, 1" Bar Diam, 2.76" Flange OD x 0.52" Thickness Precision Acme Mounting Flange 1-3/8 - 16 Int Thread, 1" Bar Diam, 2.76" Flange OD x 0.52" Thickness Precision Acme Mounting Flange 4 Mounting Holes, Black Oxide Finish, Carbon Steel MSRP: $48.00 Add to Cart The item has been added Compare