Platte River 812564, Fasteners, Knock Down (kd), 70mm Small Head Connector Bolt Bronze, 10-pack Make solid permanent or knockdown joints. Specifications: Drive=4 mm, Finish=STATUARY BRONZE, Head Diameter=13 mm Specifications: Head Diameter=13 in, Head Style=WAFER mm, Hole Diameter=1/4 Specifications: Length=70 mm, Material=STEEL mm, Threads=1/4-20