Simpson 10d x 3" 31°-34° Ring-Shank Nail, 304 Stainless Steel 1000PkModel No. S11A300P31 Coating Material. Type 304 Stainless Steel Penny Size. 10d Length (in.) 3 Head Diameter (in.) 9 32 Shank Diameter (in.) 0. 120 Shank Type. Annular Ring Shank Head Type. Full Round Head Head Pattern. Checkered Packaging Qty. 1000 The Simpson 3134 Plastic Strip, Full Round Head, Ring Shank Nails feature an annular ring shank for increased withdrawal resistance to provide a secure attachment. Check for tool compatibility. Key