Home / Products tagged “2X Oversize Tapping Thread” 2X Oversize Tapping Thread Showing all 2 results Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low Sort by PN PN D7827K Drain Plug 1/2”-20 Double Oversize Piggy-Back. Includes Gasket $1.67 Part Number: D7827KAdd to Cart PN D8034K Drain Plug 1/2”-20 Double Oversize Head. Includes Gasket $1.35 Part Number: D8034KAdd to Cart