Vintage-style Hardware Classic & Traditional Timeline Style: Timeless classic style – Early 20th Century, up to Modern style interiors Made of genuine glass – Clear color glass Silver pan-head screw comes thru glass knob & includes a square nut for fastening May shorten the thru-bolt for accommodation of the material thickness Available in 1\”, 1-1/4\”, & 1-1/2\” knob sizes For matching clear glass pulls See here Product Description Specs A classic & original-style fluted glass cabinet knob in a clear color with a silver pan head thru-bolt. This reproduction of the classic glass knob has been a perennial favorite since the early 20th century on furniture & cabinets of all kinds & is great for use in the kitchen, bathroom, bedroom, & everywhere else in the home. The silver bolt is inserted from the front through the head of the knob, & comes with a square nut for the back. The bolt is smooth-headed & nickel-plated, just as in the old days. Add some character to your home with these very classic & stylish glass knobs. Available in 1\”, 1-1/4\”, & 1-1/2\” knob sizes. For matching clear glass pulls See here. Use only hand tools to install glass knobs on your cabinets. Power tools (or even wrenches) may cause damage to the thread or to the knobs. Insert bolt through head of knob. To tighten, hand turn only the nut on the back of the screw (this is one reason that the heads of the screws are smooth on top and do not have a slot.) Do not turn the knob itself as it may cause breakage. Tighten carefully but do not over-tighten – remember they are made of glass & are by their nature, fragile. We will not replace broken knobs due to over tightening or mishandling. Hardwick & Sons is pleased to offer vintage-style hardware for the many people who desire to fashion their homes with charm, quality, & style. The traditional-style hardware that we showcase are true & faithful reproductions of classic hardware pieces found in the many homes from across America throughout the past century. Product Knob Diameter Projection Length of Thru-Bolt Thru-Bolt & Nut Thread Model # Classic Fluted Glass Knob ~ Clear ~ 1\” 1\” 1\” 2-1/2\” 8-32 BMH5206X Classic Fluted Glass Knob ~ Clear ~ 1-1/4\” 1-1/4\” 1-1/4\” 2-1/2\” 8-32 BMH5207X Classic Fluted Glass Knob ~ Clear ~ 1-1/2\” 1-1/2\” 1-3/8\” 3\” 8-32 BMH5208X For California Residents: WARNING: Cancer & Reproductive Harm – www.P65Warnings.ca.gov WARNING: Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to www.P65Warnings.ca.gov/wood