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SHOP ONLINE KNOWLEDGE CENTER                              Construction            Concrete Finishing Footings Calculating Cubic Volumes Recommended Slab Thickness DIY Tips & Techniques Masonry Concrete Drywall Tilesetting General Construction Dumping Angles Hand Signals ADA Guide for Small Businesses Introduction Public Accomadations Existing Facilities Removing Barriers Parking Entrances Doors Turnstiles & Security Gates Shelves & Maneuvering Sales & Service Counters Serving Counters Seating & Tables Policies & Procedures Customer Communication Tax Credits New Construction & Alterations ADA Information Sources Masonry Arch Construction Arch Types Bonds Brickwork Detail Brick Positions Chimney & Fireplace Construction Chimney Construction Fireplace Construction Fireplace Diagram Fireplace_Dimensions Mortar Joints Paving Patterns Restoration Slate Roof TOOLS & MATERIALS Hardware Bolt and Srew Head Styles Bolt and Srew Drive Styles Nail Types Nail Sizes Wood Screw Types Wood Screw Gauges Materials Brick Texture Brick Tolerances Brick Types & Sizes Block Types & Sizes Heat Transfer Mortar Types Mortar Mixing Concrete Portland Concrete Mixing Insulation Values Rebar Diameters Tools Diamond Blades How Diamond Blades Work Choosing a Diamond Blade Identifying Type of Concrete Operating Speeds Maximum Cutting Depths Troubleshooting Brush Fibers Carbide Tool Care Weights, Measures and Formulas Estimating Brick in Walls Concrete per Slab Materials for Block Walls Materials for Brick Walls Mortar Required Weights and Measures Decimal Values Stockpile Volume & Weight Temperature Conversions U.S Units Metric Units Metric Conversions Miscellaneous Units Geometric Formulas OTHER                        Abbreviations Codes & Alphabets Braille Alphabet & Numerals Radio Codes Roman Numerals Glossary of Terms	WOOD SCREW GAUGES   Wood screws are available in lengths from one quarter inch to 6 inches in gauge numbers from 0 to 24, 24 representing the largest available diameter. The available gauge numbers vary for any given screw length. As illustrated in the chart below, a screw one-quarter inch long is available in gauge numbers from 0 to 3, while a three-eighths inch screw is available in gauge numbers from 2 to 7. From one gauge number to the next, the wood screw changes by 13/1000 of an inch. Use the following formula to determine the diameter of a given gauge number or the gauge number of a given diameter. N = Gauge Number/D = Diameter D = (NX0.013)+0.06 N = (D-0.06)/0.013 Send this info to a friend Printer friendly version RELATED INFORMATION Wood Screw Types SHOP RELATED PRODUCTS Tool Bags & Pouches   For example, a screw with a gauge number of 2 has a diameter of 0.086. As indicated in the formula. (2x0.013) + 0.06 = 0.086. COMMON WOOD SCREWS Length Available Gauge Numbers 1/4 inch 0 1 2 3                             3/8 inch     2 3 4 5 6 7                     1/2 inch     2 3 4 5 6 7 8                   5/8 inch       3 4 5 6 7 8 9 10               3/4 inch         4 5 6 7 8 9 10 11             7/8 inch             6 7 8 9 10 11 12           1 inch             6 7 8 9 10 11 12 14         1-1/4 inch               7 8 9 10 11 12 14 16       1-1/2 inch             6 7 8 9 10 11 12 14 16 18     1-3/4 inch                 8 9 10 11 12 14 16 18 20   2 inch                 8 9 10 11 12 14 16 18 20   2-1/4 inch                   9 10 11 12 14 16 18 20   2-1/2 inch                         12 14 16 18 20   2-3/4 inch                           14 16 18 20   3 inch                             16 18 20   3-1/2 inch                               18 20 24 4 inch                               18 20 24   Bon Tool Co. has made a serious effort to provide exact and current information, but does not guarantee the accuracy of the data. Bon Tool Co. cannot assume responsibility for the application of information nor guarantee results.
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