Giant Nuts & Bolts Educational Toys for Kids | Shape & Color Matching Educational Kids Toys
Amazon.com: Stainless M8-1.25 x 14mm Fully Threaded Hex Head Bolts (12mm to 60mm Length in Listing), DIN 933, 18-8 Stainless Steel, 20 Pieces (M8-1.25 x 14mm) : Industrial & Scientific