{"id":2686,"date":"2011-10-25T15:31:13","date_gmt":"2011-10-25T22:31:13","guid":{"rendered":"http:\/\/mikesenese.com\/DOIT\/?p=2686"},"modified":"2026-03-08T22:24:01","modified_gmt":"2026-03-09T05:24:01","slug":"visual-glossary-of-screws-nuts-and-washers","status":"publish","type":"post","link":"https:\/\/www.mikesenese.com\/DOIT\/2011\/10\/visual-glossary-of-screws-nuts-and-washers\/","title":{"rendered":"Visual Glossary Of Screws, Nuts and Washers"},"content":{"rendered":"<p>(Makers and DIY&#8217;ers: Make sure to <a href=\"http:\/\/twitter.com\/msenese\" target=\"_blank\" rel=\"noopener noreferrer\">add me on twitter<\/a> and <a href=\"http:\/\/mikesenese.com\/DOIT\/feed\" target=\"_blank\" rel=\"noopener noreferrer\">subscribe to my feed<\/a>.)<\/p>\n<p>BoltDepot has a great selection of <a href=\"http:\/\/web.archive.org\/web\/20231120080715\/https:\/\/www.boltdepot.com\/Fastener-Information\/Identifying-Fasteners.aspx\" target=\"_blank\" rel=\"noopener noreferrer\">charts<\/a> used to identify and explain the wide variety of screws, bolts, nuts, washers and other pieces used for building just about every project you can imagine. Wood screws, machine screws, carriage bolts, lag bolts, square heads, torx, ogee washers and more.<\/p>\n<p>There&#8217;s even a section about the <a href=\"http:\/\/web.archive.org\/web\/20251226103246\/https:\/\/boltdepot.com\/Fastener-Information\/Materials-and-Grades\" target=\"_blank\" rel=\"noopener noreferrer\">grade\/strength types<\/a> of the different materials used for the fasteners. Very handy indeed.<\/p>\n<h2>Types of Screws<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-2687\" title=\"Types-of-Screws\" src=\"http:\/\/mikesenese.com\/DOIT\/wp-content\/uploads\/2011\/10\/Types-of-Screws-580x779.png\" alt=\"\" width=\"580\" height=\"779\" srcset=\"https:\/\/www.mikesenese.com\/DOIT\/wp-content\/uploads\/2011\/10\/Types-of-Screws-580x779.png 580w, https:\/\/www.mikesenese.com\/DOIT\/wp-content\/uploads\/2011\/10\/Types-of-Screws-107x145.png 107w, https:\/\/www.mikesenese.com\/DOIT\/wp-content\/uploads\/2011\/10\/Types-of-Screws-285x383.png 285w, https:\/\/www.mikesenese.com\/DOIT\/wp-content\/uploads\/2011\/10\/Types-of-Screws.png 700w\" sizes=\"auto, (max-width: 580px) 100vw, 580px\" \/><!--more--><\/p>\n<h2><span style=\"font-size: 1.6em;\">Types and Styles of Screw Heads<\/span><\/h2>\n<div class=\"ggnoads\">\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-2688\" title=\"Screw-Head-Types\" src=\"http:\/\/mikesenese.com\/DOIT\/wp-content\/uploads\/2011\/10\/Screw-Head-Types-580x340.png\" alt=\"\" width=\"580\" height=\"340\" srcset=\"https:\/\/www.mikesenese.com\/DOIT\/wp-content\/uploads\/2011\/10\/Screw-Head-Types-580x340.png 580w, https:\/\/www.mikesenese.com\/DOIT\/wp-content\/uploads\/2011\/10\/Screw-Head-Types-145x85.png 145w, https:\/\/www.mikesenese.com\/DOIT\/wp-content\/uploads\/2011\/10\/Screw-Head-Types-285x167.png 285w, https:\/\/www.mikesenese.com\/DOIT\/wp-content\/uploads\/2011\/10\/Screw-Head-Types.png 700w\" sizes=\"auto, (max-width: 580px) 100vw, 580px\" \/><\/p>\n<h2>Screw Drive Types<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-2689\" title=\"Screw-Drive-Types\" src=\"http:\/\/mikesenese.com\/DOIT\/wp-content\/uploads\/2011\/10\/Screw-Drive-Types-580x218.png\" alt=\"\" width=\"580\" height=\"218\" srcset=\"https:\/\/www.mikesenese.com\/DOIT\/wp-content\/uploads\/2011\/10\/Screw-Drive-Types-580x218.png 580w, https:\/\/www.mikesenese.com\/DOIT\/wp-content\/uploads\/2011\/10\/Screw-Drive-Types-145x54.png 145w, https:\/\/www.mikesenese.com\/DOIT\/wp-content\/uploads\/2011\/10\/Screw-Drive-Types-285x107.png 285w, https:\/\/www.mikesenese.com\/DOIT\/wp-content\/uploads\/2011\/10\/Screw-Drive-Types.png 744w\" sizes=\"auto, (max-width: 580px) 100vw, 580px\" \/><\/p>\n<h2>Nut Types<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-2691\" title=\"Nut-Types\" src=\"http:\/\/mikesenese.com\/DOIT\/wp-content\/uploads\/2011\/10\/Nut-Types-580x515.png\" alt=\"\" width=\"580\" height=\"515\" srcset=\"https:\/\/www.mikesenese.com\/DOIT\/wp-content\/uploads\/2011\/10\/Nut-Types-580x515.png 580w, https:\/\/www.mikesenese.com\/DOIT\/wp-content\/uploads\/2011\/10\/Nut-Types-145x128.png 145w, https:\/\/www.mikesenese.com\/DOIT\/wp-content\/uploads\/2011\/10\/Nut-Types-285x253.png 285w, https:\/\/www.mikesenese.com\/DOIT\/wp-content\/uploads\/2011\/10\/Nut-Types.png 700w\" sizes=\"auto, (max-width: 580px) 100vw, 580px\" \/><\/p>\n<\/div>\n<p><!--more--><\/p>\n<p><!--more--><\/p>\n<p><!--more--><\/p>\n<h2>Washer Type<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-2690\" title=\"Power tools\" src=\"http:\/\/mikesenese.com\/DOIT\/wp-content\/uploads\/2011\/10\/Washer-Types-580x375.png\" alt=\"Various washer types that are used with screws, nuts and bolts when building and constructing.\" width=\"580\" height=\"375\" srcset=\"https:\/\/www.mikesenese.com\/DOIT\/wp-content\/uploads\/2011\/10\/Washer-Types-580x375.png 580w, https:\/\/www.mikesenese.com\/DOIT\/wp-content\/uploads\/2011\/10\/Washer-Types-145x93.png 145w, https:\/\/www.mikesenese.com\/DOIT\/wp-content\/uploads\/2011\/10\/Washer-Types-285x184.png 285w, https:\/\/www.mikesenese.com\/DOIT\/wp-content\/uploads\/2011\/10\/Washer-Types.png 700w\" sizes=\"auto, (max-width: 580px) 100vw, 580px\" \/><\/p>\n<blockquote>\n<h2>Measuring<\/h2>\n<p>There are several different locations on a fastener where one can measure the diameter.<\/p>\n<p>The most commonly used diameters are:<\/p>\n<ul>\n<li><strong>Thread Diameter<\/strong>\u00a0(T). Also called major diameter.<\/li>\n<li><strong>Shank Diameter<\/strong>\u00a0(S).<\/li>\n<li><strong>Root Diameter<\/strong>\u00a0(R). Also called minor diameter.<\/li>\n<\/ul>\n<\/blockquote>\n<div>\n<blockquote><p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2692\" title=\"Measuring-Bolts-and-Screws\" src=\"http:\/\/mikesenese.com\/DOIT\/wp-content\/uploads\/2011\/10\/Measuring-Bolts-and-Screws.png\" alt=\"\" width=\"482\" height=\"132\" srcset=\"https:\/\/www.mikesenese.com\/DOIT\/wp-content\/uploads\/2011\/10\/Measuring-Bolts-and-Screws.png 482w, https:\/\/www.mikesenese.com\/DOIT\/wp-content\/uploads\/2011\/10\/Measuring-Bolts-and-Screws-145x39.png 145w, https:\/\/www.mikesenese.com\/DOIT\/wp-content\/uploads\/2011\/10\/Measuring-Bolts-and-Screws-285x78.png 285w\" sizes=\"auto, (max-width: 482px) 100vw, 482px\" \/><\/p>\n<h3>Nuts and Washers<\/h3>\n<div>\n<p>Both nuts and washers are sized by the fastener they fit. For example a 1\/2 inch nut fits a 1\/2 inch bolt and a 1\/2 inch washer fits the same bolt.<\/p>\n<p><em>Note:<\/em>\u00a0When purchasing nuts the Thread Count or Pitch must also match that of the bolt. For more information please see our\u00a0<a href=\"http:\/\/web.archive.org\/web\/20231003113041\/https:\/\/www.boltdepot.com\/fastener-information\/measuring\/tpiandpitch.aspx\">About Thread Pitch and TPI<\/a>\u00a0page and or\u00a0How Fastener Measurements are Notated\u00a0page.<\/p>\n<\/div>\n<h3>Specific Types<\/h3>\n<\/blockquote>\n<div>\n<blockquote><p><strong>Hex Bolts<\/strong><br \/>\nThe diameter of a hex bolt is the Shank diameter, expressed in inches for US bolts and Millimeters for Metric Bolts. Because this is approximately the same as the Major or Thread diameter the thread diameter measurement can be used for fully threaded bolts.<\/p>\n<p><strong>Machine Screws<\/strong><br \/>\nMachine screws are measured in the same way as hex bolts above.<br \/>\nUS machine screws under 1\/4 inch are then cross referenced to a size number. See our\u00a0US Machine Screw Diameter Table.<\/p>\n<p><strong>Socket Head Screws<\/strong><br \/>\nSocket head screw diameter is measured in the same way as machine screws.<\/p>\n<p><strong>Carriage Bolts<\/strong><br \/>\nCarriage bolt diameter is measured in the same way as hex bolts.<\/p>\n<p><strong>Lag Bolts<\/strong><br \/>\nLag bolt diameter is measured in the same way as hex bolts.<\/p>\n<p><strong>Wood Screws<\/strong><br \/>\nThread diameter is used when measuring wood screws. The measurement is then cross referenced to a size number. See our\u00a0<a href=\"http:\/\/web.archive.org\/web\/20230530170541\/https:\/\/www.boltdepot.com\/Fastener-Information\/Wood-Screws\/Wood-Screw-Diameter.aspx\">Wood Screw Diameter Table<\/a>.<\/p>\n<p><strong>Sheet Metal Screws<\/strong><br \/>\nThread diameter is used when measuring sheet metal screws. The measurement is then cross referenced to a size number. See our\u00a0<a href=\"http:\/\/web.archive.org\/web\/20231206113343\/https:\/\/www.boltdepot.com\/fastener-information\/Sheet-Metal-Screws\/Sheet-Metal-Screw-Diameter.aspx\">Sheet Metal Screw Diameter Table<\/a>.<\/p>\n<p><strong>Shoulder Bolts<\/strong><br \/>\nOnly the shoulder diameter is used when measuring shoulder bolts.<\/p><\/blockquote>\n<p>Also: don&#8217;t forget about the $38 (and free shipping) <a href=\"https:\/\/www.amazon.com\/LEATHERMAN-Skeletool-Lightweight-Minimalist-Multi-tool\/dp\/B01ACC8ZFW\/ref=sr_1_1?dib=eyJ2IjoiMSJ9.PtyoBz4zduEszGuJI7ufEqu-_6J4Jv1TQnYNpb9HwZEwhaGgJ39HIcT_nEMXfqQ-reNy3eXBlYvk1PsQONHBb0TNqoOmhbpB2Psrs9Lh7BGQGY0L5LeIwxh-2IvIrvf4daV7s82VY75wtfSYlOQgy5uarQaDUMzlq265EWUKy71FhGwdHlHDLSqYC9YXjmHscskTJVeQisYH1X1X6iRLrttHqlvdUQCfUkgLlfL4b2Z-vNdAsyJ3canMlrCFYHEG4mF-8U_uNK0s1NbzK6imu9xv0pINvlMiWh2xnDzJqG4.vmI2X1eedRSBUBcuw2FSi8-lhPTS6A5Qh5Tv9v-uc5s&amp;dib_tag=se&amp;keywords=leatherman%2Bskeletool&amp;qid=1773033705&amp;sr=8-1&amp;th=1&amp;tag=mjsdoit-20\" target=\"_blank\" rel=\"noopener noreferrer\">Leatherman Skeletool <\/a>offer on Amazon. I love that one &#8212; still can&#8217;t believe how cheap they&#8217;re selling it.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>(Makers and DIY&#8217;ers: Make sure to add me on twitter and subscribe to my feed.) BoltDepot has a great selection of charts used to identify and explain the wide variety of screws, bolts, nuts, washers and other pieces used for building just about every&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-2686","post","type-post","status-publish","format-standard","hentry","category-diy"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Visual Glossary Of Screws, Nuts and Washers &#8212; DO IT: Projects, Plans, and How-tos<\/title>\n<meta name=\"description\" content=\"Identify the right screws, nuts and washers for your DIY projects with this visual glossary. 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