Knuckle Length

Knuckle length is the nominal or typical dimension of the knuckle measured parallel to the pin. Most hinges have an odd number of knuckles, which helps them interconnect for the smooth opening and closing motion that builders love so much.

Your needed knuckle length largely depends on the engineering specs of your project. Ideally, the hinge should smoothly operate the two surfaces that the hinge connects. You want a knuckle length that is the correct size for your project. With practice, you will grow a general instinct for what size works best for each project. A hinge on a jewelry box door will not have the ability to open your kitchen door, and the same is true vice versa.

Larger surfaces require larger hinges. The length of any part of a hinge, whether it is the leaves or the knuckle length, is determined by the material and the diameter of the materials you are using; larger hinges have more weight-bearing surface than smaller hinges. The bigger the project you are making, the bigger the hinge and hinge parts you need, including knuckle length.

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Marlboro Manufacturing, Inc., home of Marlboro Hinge, has a reputation for quality that extends nationally and internationally. We ship orders same day. Our extensive warehouse of hinges makes us unique. Not only do we already carry countless varieties of continuous hinges, butt hinges, slip joint hinges and strap hinges, but we also custom design hinges to your specifications. If you need something that we don’t have, just let us know, and we can collaborate with your designs to create a product perfect for you.

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With over fifty years of experience, Marlboro Hinge & Laser knows the best hinge you need for your project. Our reputation for excellent hinges extends nationally and internationally. We don’t just sell premade hinges – we can customize them to your specific needs. Contact us for a quick ship order from our inventory or an estimate on your custom hinge project today!

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