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Diameter, pitch and length in millimeters define the size of a metric screw. Metric screws have pitches of coarse, fine or extra fine. Carriage and stove screws are coarse threaded. Machine screws are either coarse threa... More »

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CSGNetwork.com provides a metric chart for machine screw sizes and EngineersEdge.com offers a list of links to metric size charts for various types of screw and fastener sizes. In addition to a drill screw metric size ch... More »

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There are around 23 to 27 standard screw thread sizes in the United States. The 0 gauge has a major diameter of 0.06 inches with 80 threads per inch in the Unified National Fine series, the 1 gauge has a major diameter o... More »

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A thread pitch diameter calculator calculates the diameter of a screw, at which the width of the thread running in a helix along the screw and the width of the spaces between threads are equal. This diameter is one of th... More »

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To calculate the roof rafter length, determine the roof's pitch and the direction in which the rafters rise from the opposite exterior walls till the ridge, find out the measurements of the opposing shorter walls of the ... More »

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To make a birdsmouth cut, first calculate the size and orientation of the cut based on the pitch of the roof. Then make the cut, using a chisel and a hand saw or power saw. The cut should measure no more than one-third o... More »

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Roofing estimates are determined by the cost of materials, how accessible the roof is, the size of the roof and its pitch. Before hiring a roofing contractor or company, one should first check to make sure the contractor... More »

www.reference.com Home & Garden Home Maintenance Carpentry