Seachoice Roller Shaft w/2 Pal Nuts 5/8"x6-5/8" 50-55751 by Seachoice $8.76 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Seachoice Trailer Roller Shaft #50-55751 Size: 5/8" x 6-5/8" Roller Size: 5" & 5-1/4" Zinc Plated Steel Roller Shaft Comes Complete With 2 Pal Nuts.