Click to expand Tap to zoom 1/4-20 X 1/2” Guide Lubrication Screw by Cutting Edge Tooling Sale $2.40 SKU GS-25-500-625 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart 1/4-20 X 1/2” Guide Lubrication Screw with 1/16” ported hole (STEEL)