Shop › Carriage Rail Screw Image 1 of 2 Image 2 of 2 Carriage Rail Screw $4.00 Complete your Oliver with an original carriage rail screw. Model: 3 / 4 5 / 6 / 7 / 8 / 9 / L-10 / 10 / 11 / L-12 / L-13 / 12 / 15 / 16 Quantity: Add To Cart Added! Complete your Oliver with an original carriage rail screw.