12″ Keel Pad Fits 3″ Wide Crossmembers. SKU: 1313 Categories: Keel, Rollers Related products 4″ Poly V Block Bow Stop $17.95 Part #:1196 Fits 4" Wide Tabs. Add To Order Form 12″ Poly Keel Roller Call For Price Part #:1192 Actual Roller Measurement Is 11 1/2" Long. It's Recommended That You Use A 12" Stainless Steel Roller Rod Part #191, And 2) Stainless Steel Cotter Pins Part #3121. 4″ Bow Roller Kit Call For Price Part #:3112 Fits 4" Wide Tabs. Galvanized 8″ Panel Keel Roller Bracket Call For Price Part #:2371 Fits All Rollers Designated as 8". For The 8" Galvanized Rod Part #1180, And For The 8" Stainless Steel Rod Part #212.