The 412-PB from Sioux Chief is a 1/4” x 2-1/4” Log Snap-it Bass Closet Bolts Kit. They are used to secure the toilet bowl to the closet flange. Kit includes (2) 1/4" x 2-1/4" long solid brass closet bolts, (2) nickel-plated steel acorn nuts and (2) zinc-plated washers. Bolts feature snap off tip - no need to cut. Captive washer keeps bolt upright and prevents it from falling.