5-pack Three-Prong Wing Nut Package Contents: 5-pack (5/16/18) Threaded Through-Hole Inserts Applications: Heavy-duty clamping operations, T-slot assemblies, hand tools, feathering boards, saw rails, drills, woodworking clamp making kits, and tooling fixtures, etc. Premium Materials: Black thermoplastic construction, matte black finish, made of galvanized steel. Easy Installation: Tool-free, perfectly triangular design for easy rotation and installation. ASIN B0GXVKBNY9 Brand LYHADGV Color Black Model 5/16 -18 Set Name 5-Pack 5/16 -18 Three-Prong Wing Nut Set Size Name 5/16 -18 Part Number 1T-H8C8-7TFC Thread Size 5/16 -18 Thread Type Unified National Coarse Finish Types Matte Manufacturer LYHADGV Fastener Type Wing Item Diameter 2 inches Material Type Acrylic Exterior Finish Black Item Dimensions 0.01 x 0.01 x 0.01 inches Number Of Items 1 Number of Pieces 5 Outside Diameter 2 inches Screw Head Style Three-Prong Inside Thread Size 5/16 -18 Included Components Cover