6 screw diameter Higher numbers indicate larger diameters. Hardware Sizes: Metric Screw Thread This section contains tables of sizes for metric thread hardware. Screw gauges measure the head size and shaft size, and while they are roughly linear, they do not have a 1:1 relationship. 034 00-90 #62 . screw sizes, providing insight into both their decimal representations in inches and their equivalents in metric units. This detailed guide covers matching screw size, testing, sizing chart consultation, drill bit selection, depth considerations, and safety precautions. Sep 24, 2024 · In Canada, the standard screw sizes are described in the inch series, which includes the diameter, number of threads per inch, and length in inches. Metric clearance hole sizes for bolts and screws per ASME B18. 6 up to M68. ANSI Socket Head Screw Engineering Dimensional Data Table Chart - Engineers Edge Hardware ANSI Engineering Data ANSI Socket Head Screw Engineering Dimensional Data Table Chart per ASME / ANSI B18. This specific drill bit size is suggested for achieving 75% thread engagement when tapping a #6-32 screw. It’s a #6 diameter with 32 threads per inch (approximately double the normal thread count for a standard wood screw), and it’s an inch and a half long. S. Fastener Thread Designations and Definitions Pitch, Minor, Major Diameters Standard External Metric Thread and Fastener Sizes M 0. 3 and ASTM A574. The UTS system measures screw sizes in inches, with the most common types of screws including wood screws Jul 30, 2024 · Reading metric screw size charts helps when you're buying screw packages, to help you save time and get the right dimensions you need. For example, in the screw size 10-24, the first digit refers to the thread diameter, the and second digit is threads . A size 32 screw was given a head diameter of one inch and a shank diameter of half inch. For example, a #6 screw is designed for small crafts, hinges, and drawer slides, while a #10 screw is more suitable for general construction and heavy-duty Screw Size Chart Email Id: sales@dalloyedfasteners. Sep 22, 2024 · "A master guide to screw sizes with a detailed map for easy reference. The most common size for wood screws is the 8-gauge screw, which is 4mm in diameter. Machine screws are designed for pre-threaded holes or to be used with nuts, and are commonly used in metal-on-metal applications. the major diameter of a #6 screw is 0. Screw gauges are a measure of the head size and shaft size, and while they are roughly linear, there is not a 1:1 Aug 3, 2024 · Sheet metal screw sizes are categorised by head styles and three numbers that represent the screw's diameter, length and thread count. See the anatomy of a wood screw and the important dimensions. Jun 8, 2025 · Here's how to use a wood screw size chart for all your wood projects. See the M1. Oct 3, 2024 · For tapping a #6-32 screw, a #36 drill bit is recommended When it comes to tapping a #6-32 screw, the recommended drill bit size is #36. Unlock a clearer understanding of screw dimensions, types, and functions. A gage number like "6" is the diameter and the length is the length of the screw that goes into the wood not inclusive of the head unless it's a flat head. Gauge, threads per inch, and shaft length in inches are the three basic measurements for screws. In this case, #6 is a #6-size screw. Mar 23, 2022 · Using materials too thin to tap and rivets won't work; use sheet metal screws. 35). Tolerance Grades: Indicates thread fit precision (e. 25 - M 1. Always confirm application requirements first. The #6-32 screw is commonly used for fastening components of tools, appliances, machines, and electronic devices. Learn about its dimensions, applications, and compatibility with other hardware. Thread sizes in inches are specified by diameter and threads per inch. M3, M4, M5 and so on. Mar 18, 2022 · A #6 gauge is 0. Understand the measurements, thread types, and applications of these screws to ensure you select the right one for your project. Learn how to choose the right drill bit size for a secure fit and avoid stripping threads. A size 0000 has a head diameter of 108/1000 of an inch and a shank diameter of 54/1000 of an inch. 270 inches to a minimum of 0. Hinges, drawer slides, light-duty fixtures, and other minor tasks typically use them. Feb 2, 2021 · Thread sizes are given in nominal sizes, not in actual measurement. Jan 25, 2024 · Download a comprehensive sheet metal screw size chart PDF for free. 13′′ (9/64th of an inch). The number "6" in this case refers to the screw size, which is a measure of the head size and shaft size. Screw sizes are usually indicated by a number and a measurement of length, for example, 6 x 3/4. Whether you’re selecting hardware for a prototype or replacing components in existing equipment, having a reliable machine screw size chart on hand can save time and prevent costly errors. Nov 14, 2018 · Screwdrivers come in all shapes and sizes. The Size Dimension pertains to diameter of screws, bolts, & pins and inner diameter of nuts and washers. Screw gauges are a measure of the head size and shaft size, and are roughly linear but not quite a 1:1 relationship (a #8 screw is a little less than twice the diameter of a #4 screw). Popular internal searches in the Engineering ToolBox #6 - 32 UNC : Basic Thread Dimensions (Pitch, minor & major diameters, depth, lead), Tolerance range for all applicable classes and much more Copyright © Bolt Depot 2000-2025 Bolt Depot, Inc. ) refer to the diameter of the screw, with higher numbers indicating larger diameters. 6 nuts and washers. " Nov 29, 2022 · For example, an ANSI Inch 1/2″ flat head screw with a normal fit countersunk hole will require a pilot hole diameter of 9/16″, a countersunk diameter of 1″, and a countersunk angle of 82°. Oct 30, 2024 · A #6 screw is a standard size of the fastener used in construction and other applications. Sheet Metal Screws Cont. Screw sizes are typically denoted by a number and a length, with the number referring to the diameter of the screw. 8 corresponds to 0. A higher gauge number means a thicker screw. 6 screw size chart with head heights, diameters, drive sizes, and thread pitch (M1. 138 (3. Oct 12, 2025 · Key Features of ISO Metric Screw Threads Major Diameter (D): The largest diameter of the thread. Aug 11, 2024 · A comprehensive guide to understanding screw sizes, covering everything from screw types to thread measurements, driver sizes, and selecting the right screw for your project. 140625 in. Machine Screw, Bolt, and Thread Sizes into fractions, decimals, and even millimeters including fine thread and coarse thread. This screw size chart will give you the diameter and hole diameter or different size screws, as well as links to drill size calculators. 778 mm. 6 size, covering head diameter, head height, and more. #6 screws are available in lengths ranging from 12′′ to 1-112′′. Our user-friendly metric thread chart offers comprehensive specification data for various metric screw sizes. Choose from our selection of no. Jul 15, 2022 · Screw sizes are explained in this guide (metric in millimetres and imperial - gauge and inches) which contains conversion charts between metric and imperial. Find the perfect screw for your project with our easy-to-use guide. A screw sizes chart is a standardized reference table that outlines the key dimensions and specifications of various types of screws. Nov 12, 2024 · Get a comprehensive guide to understanding screw sizes, specifically focusing on the No. 256 inches. 6 drive screws, including socket head screws, rounded head screws, and more. For example, a #6 screw has a diameter of 3/16, while a #10 screw has a diameter of 5/32. Here you can use our sheet metal screw sizes chart to get the right ones Related: ANSI Inch Unit Hardware Design Guide Length of Screw Thread Engagement per. ASME B1. Sep 4, 2024 · Get it right the first time. 1312 inches at its minimum. It includes screw gauges, major diameters in inches and millimeters, and recommended drill bit sizes. Below are Dec 25, 2023 · Dive into the intricacies of fasteners with our detailed screw size chart guide. Nov 24, 2024 · Discover the perfect drill bit size for 6 machine screws in DIY projects. Same and Next Day Delivery. Feb 26, 2025 · The standard diameter of a 6 screw is approximately 0. Sep 20, 2024 · Get a comprehensive guide to understanding screw sizes and learn how to convert between metric and imperial measurements. Dec 8, 2022 · Therefore, a size 6 gauge screw has a head almost equal to 6 mm wide. Screw Gauges and Conversion The diameters of some screws (especially woodscrews and self-tapping screws for metal) can be described with gauge numbers, rather than metric diameters. Sep 4, 2024 · Learn about screw sizes and major diameter measurements. The screw’s diameter tells you how wide the shaft is. Related: ANSI Inch Unit Hardware Design Guide Length of Screw Thread Engagement per. 4 Sheet Metal Screw Diameter Table Print this page Shop for Sheet Metal Screws Oct 24, 2024 · The #6 screw size is a standard screw gauge. The thread diameter of the screw is 0. 138 inches. 136 inches Understanding screw sizes can be confusing, especially when they are labelled with a number and a fraction, like "6 x 3/4". 1 Inch Size UN External Screw Threads Formulas and Calculator per. The shaft length varies but one standard screw has a length of 0. Oct 3, 2024 · Get a comprehensive guide to standard screw sizes, specifically focusing on understanding the diameter for size 6. The first number refers to the screw's size, which indicates the diameter, threads, and head size. 1380 “, and a #8 gauge is 0. The first number is the diameter, and the second is the length. 6 countersinks, including countersinks for screws, countersinks for rivets, and more. Learn about the various dimensions and applications. Screw Dimensions for popular wood screws. Learn to effectively drill 6 machine screws with a 36 drill bit, a center punch, proper speed, pressure, and finishing techniques for professional and safe outcomes. dalloyedfasteners. The smaller the gage number the smaller the screw diameter (opposite of nails and wire diameter). 026 . The length is measured differently depending on the head style of the screw. Sep 10, 2024 · Get a comprehensive guide to standard machine screw sizes with a focus on #6 screws. The #6-32 size is defined by a thread diameter of #6 and a thread pitch of 32 per inch. For inches, any diameter smaller than 1/4" is indicated by a number, referenced in the table below (e. Learn diameters, lengths, thread types, and tips to choose the right screw. Learn how to choose the right screw for wood, metal, or DIY projects. May 25, 2022 · American Screw Sizes: Thread Diameter, Sizes, Nearest Fraction Thread Tables for Screws ANSI External Screw Threads Size Chart. 107 inches, as indicated by various sources. Aug 4, 2020 · Here we’ll talk about what a machine screw is and its types, measurements, and diameter chart. Find the right screw for your project with this easy-to-use guide. Oct 3, 2024 · Get a comprehensive guide to understanding 6-32 screw sizes. All dimensional data is given in inches. Oct 6, 2024 · Phillips pan head A #6-32 Phillips pan head screw is a type of machine screw, typically made from stainless steel. Learn how to identify and use these screws, and explore the world of fractions in screw measurements. McFeely's Screw size chart and guide, find the right size wood screw and type of screw for your application. Oct 24, 2024 · Learn how to choose the correct wood screw size with these considerations, including the direction of stress, type of wood, and kind of joint. Many additional sizes, head styles, and drill points are available. Basic = Nominal. Aug 11, 2025 · The #6 screw diameter measures exactly 0. The #6 screw has a thread diameter of 0. 1. com Address: Mumbai (400004), India Jul 28, 2024 · The numbers on screws in the Imperial system (such as #6, #8, etc. Other size measurements, such as screw, bolts, pin length, the outer diameters of nuts & washers, etc. At first glance, The drywall screws sizes and lengths, thread heads, types, composition, and points may appear incomprehensible. 9mm, it is called a 6mm thread. The Ulitmate Metric Screw Thread Resource: Basic Dimensions, Classes, Tolerances, Formulas, Charts, and Explanations Screw Size & Decimal Equivalent Charts Screw Size Equivalents Screw Size Tap Drill Maximum Screw Diameter Size Diameter 000-120 #71 . Learn how to determine the right size for your project, consider material and load-bearing capacity, and find tips for using a wood screw sizes chart effectively. 7mm). See the dimensions you need (diameter, thread count, pitch and more) to get the right wood screw type for your needs. Tapped hole, close fit, and free fit clearance holes. Aug 16, 2024 · The diameter of a screw refers to the width of the outer threads and is known as the major diameter. In addition to the size of the screw, which is determined by the diameter of the shank, the thread size is another important consideration. Our thread size chart covers M1. This article delves into U. Choose from our selection of screw size identifiers, screw, bolt, and nut size identifiers, reference charts, and more. A. Search is the most efficient way to navigate the Engineering ToolBox. You can see how this size fits between #4, #8, and #10 screws in the table below. Oct 12, 2024 · Screws are typically labelled with a number and a measurement, for example, #6 x 3/4. At the end of this section, we've also included a chart showing common drill bit sizes and the names used for them. Bolt Thread Sizes The following table of thread sizes for coarse and fine pitch thread was created using the standard sizes from ASME B1. 1372 inches at its maximum and 0. • Below are commonly stocked sizes. 13M. Screw sizes are typically indicated by a number and a dash, such as #6 or #8. Components of a Metric Thread Chart A metric thread chart organizes data into columns and rows, detailing specifications for various thread sizes. Higher numbers mean larger diameters. The most common sizes are #6 x 3/4, #6 x 1/2, and #6 x 1. Learn about their dimensions, applications, and compatibility with fasteners. What does this size designation mean? Aug 3, 2024 · Sheet metal screw sizes are categorised by head styles and three numbers that represent the screw's diameter, length and thread count. Oct 23, 2017 · 78 "6" is a #6-size screw. 75 (19mm). Drywall screws are considered the industry standard for fastening full or partial drywall sheets to ceiling joists or wall studs. Understanding Wood Screw Sizes Chart When it comes to working with wood, understanding Jul 16, 2021 · Drilling a pilot hole and need to know what drill bit size to use? Reference are charts for all types of self-tapping screws, including AB, B, A, and 25. Jul 30, 2024 · Reading metric screw size charts helps when you're buying screw packages, to help you save time and get the right dimensions you need. Below, you’ll find a clear breakdown Get free shipping on qualified #6 Screws products or Buy Online Pick Up in Store today in the Hardware Department. Explanation of Fastener Sizes and Measurements: Understanding diameter, length, and thickness measurements for standard industrial and construction fasteners - screws, nuts, bolts, washers, pins, & more Screw Dimension Chart Head diameter is for flat head and oval head screws; round head screws are about 15% smaller. The Unified Thread Standard (UTS) is used for screw sizes in Canada, which differs from the metric system used in most other countries. Conversion charts are available to convert US screw sizes to their decimal (inch) and metric (millimetre) equivalents, as well as the nearest fractional size. 146 (3. 46mm) and a hole diameter of 0. Wood Screw Size Chart Aug 3, 2024 · The length of a screw with a round head is measured from below the head, whereas the length of a countersunk screw is measured from the top of the head. Learn about the different types of screws, their applications, and how to identify them. The diameters of the heads reduced by 28/1000 of an inch, and the shanks reduced by 14/1000 of an inch for each size of screw until they got down to a size 1. Jan 29, 2021 · I noticed that in some (many?) countries, screw sizes are listed as "M+number", e. Aug 29, 2025 · The American Screw Size Chart PDF provides a handy reference for common screw sizes used in woodworking, sheet metal, and machine applications. , 6g for external threads). Learn the difference between 6-32 and 8-32 machine screw sizes and choose the best fit for your project. Sep 26, 2024 · A #6 screw has a major diameter of 0. Metric External (Fasteners) Thread and Fastener Sizes M20 - M50 Screw Thread Designations, Minor Diameter, Major Diameter, Pitch Diameter UN Inch Internal Screw Threads Formulas and Calculator per. Oct 12, 2024 · The #6-32 screw has a head diameter ranging from a maximum of 0. Screws with a major diameter of less than 1/4 are usually labelled with a number (#), while larger screws are labelled in fractions of an inch. The second part (like 1-1/2") is the length of the screw, from the point to where the screw meets the surface of the material. Mar 27, 2024 · This guide provides an in-depth understanding of wood screw sizes chart, including diameter and length measurements, head types, and drive types. 138 inches or 3. Here's we've put together screwdriver sizes charts for the 6 most common screw head shapes. After the length, the gauge is commonly stated as the second number. Screw heads come in a plethora of configurations as well, from driver Oct 3, 2024 · Get a comprehensive guide to understanding standard screw sizes, specifically the 6-32 size. Pitch (P): Measured in millimeters between thread crests. Apr 21, 2025 · Master imperial screw sizes with our easy guide! Learn the right measurements for your DIY projects and avoid frustrating mistakes. Jan 22, 2023 · The size of a screw is determined by the diameter of its shank, which is the portion of the screw between the threads and the head. The diameters are sometimes given approximately in fractions of an inch (e. This corresponds to approximately 0. Max. 4 Sheet Metal Screw Diameter Table Print this page Shop for Sheet Metal Screws Our user-friendly metric thread chart offers comprehensive specification data for various metric screw sizes. 1065 inches or 0. com Call Us: +91 7666996996 Website: www. 6-0. Below, we have included charts displaying pilot hole diameter and proper drill bit sizing for most varieties of screws we carry. Machine Screw and Drill Size Chart (English) Ð Ð For 75% thread engagement Coarse thread (UNC) used for aluminum, brass, cast iron, plastic; Fine thread (UNF) for steel, titanium Choose from our selection of no. What does this size designation mean? Related Pilot Hole Sizes for Steel Sheet Metal Crews in Sheet Metal Sheet Metal Self Threading ANSI Screws Dimensions for B and BP Threads Sheet Metal Thread Dimensions for Types AB, A and U Thread Forming Tapping Screws Maximum tightening torque for metric self tapping screws Self Tapping Screw Pull-Out and Torque Calculator Refer to this chart to find the appropriate head size and corresponding wrench for hex bolts, lag bolts & square bolts in inches. 505 millimeters, according to ANSI standards. Numbers like #6 or #8 refer to the screw diameter. 6 washers, including washers, lock washers, and more. Oct 28, 2024 · When working with #6-32 machine screws, selecting the appropriate hole size is crucial. General Instructions Measure screw diameter, or screw size, by measuring the width of the threaded part of the screw. Here you can use our sheet metal screw sizes chart to get the right ones Nov 11, 2024 · #6 pan head screws are available in a variety of materials, lengths, and finishes. It is a measure of the screw's diameter, threads, and head size. This screw size is commonly used in various applications, and understanding the correct hole diameter ensures secure fastening without damaging the surrounding material. Find the right screw with this handy guide, which includes screw types, head shapes, and drive types. The length of the screw is important to consider for your specific application. Nov 12, 2024 · Flat-head screws are a common fastener, but what are their dimensions? Discover the standard No. Dec 6, 2018 · Wood screws are tapered and thread count is not part of the description. 2. Mar 2, 2022 · The thread diameter of the #6 screw is 0. a. The diameter of the screw, or gauge, is also a key factor, with #6 indicating a specific diameter size. Aug 16, 2024 · Understand the number 6 standard screw size. 6 wood screws, including steel Phillips flat head screws, Phillips decorative rounded head screws, and more. Self Tapping Screws - thread geometry All dimensions in mm unless otherwise stated. Coarse pitch threads are preferred and should be used whenever possible, as stated in ASME B1. 038 . ISO 965-1 Calculator, Formula and Table Length of engagement of mating threads is selected to utilize full tensile strength of a bolt prior to shearing and nut threads. Start now! Explanation of Fastener Sizes and Measurements: Understanding diameter, length, and thickness measurements for standard industrial and construction fasteners - screws, nuts, bolts, washers, pins, & more Tap & Drill Chart: Screw/thread size, major and minor diameter, drill size, decimal equivalent. Parts that Require Matching with a Mating Item Sep 20, 2024 · The numbers on screws, such as #6 or #8, refer to the diameter of the screw. 1 ANSI/ ASME EXTERNAL Screw Thread Size Chart. Home | Product catalog | Customer service | About Us | Fastener information Accessibility statement | Terms and Aug 24, 2025 · Explore the complete screw size chart with metric & imperial conversions. Learn about the different screw types, their uses, and how to choose the perfect one for your project. 164"). 109″ or 2. How do fastener sizes affect load-bearing capacity? Sep 20, 2021 · Common wood screw sizes in a chart with diameter and the screw number. Nov 3, 2024 · Find the perfect pilot hole size for #6 sheet metal screws. 1380 in, approximately 9⁄64 in = 0. Learn about its dimensions, applications, and compatibility with fasteners. This guide shows you how to convert between the two. All units are in This chart provides a quick reference to US machine screw diameters, including decimal and metric equivalents, nearest fractional sizes, and standard thread pitches. Aug 22, 2024 · A comprehensive screw size table with all standard screw sizes and dimensions. For a #6 screw, the optimal straight drill bit size that closely matches its diameter, disregarding the threads, would be a 7/64″ bit. While the sizes are roughly linear, the Apr 4, 2020 · In addition to length of the screw, screw diameters / major diameter, and gauge size, the packaging of many screws contains acronyms. Machine screw diameters. For instance, when a screw or bolt measures 5. Print this pageShop for Wood Screws Sep 24, 2024 · Know the difference between Screw Sizes 6 and M6. The specific dimensions of a #6 screw can vary depending on the type and application, but it generally indicates a relatively small screw size. The most common wood screw sizes are #6, #8, and #10, with #8 recommended for general use. g. , appear on the search result itself. Explore the relationship between screw size and its functional capacity, and understand how to select the right screw for your project. There are two common methods to write the thread dimensions. Nov 6, 2024 · The size of a screw is an important consideration when planning construction projects, especially when working with wood. Screws are commonplace fasteners in our daily lives, and understanding their specifications is crucial for various maintenance and construction tasks. These are given to show the added value of the item you purchase. Aug 25, 2025 · Explore our complete screw diameter chart with sizes, conversions, and applications. Sep 27, 2024 · Find the right screw size for your 6-inch project. The Phillips drive of the screw is designed to be used with a Aug 11, 2004 · Table of sizes of pilot holes in hardwood and softwood for American wood screws. Can I use a screw size chart for bolts too? Yes—bolts follow similar measurement standards. This corresponds to the first number of the thread size. 8, plus a quick calculator for close, normal, and loose fits. If you are a professional, you understand how difficult it is to effectively correlate the diameter of the metric, the gauge (imperial), and the head sizes. The diameter, or sheet metal screw size, is indicated by a number between zero and 24, with the most common sizes ranging from 6 to 14. Screw gauges measure the head and shaft size, and while they are roughly linear, there is no exact 1:1 relationship. Metric bolt conversion data for industrial bolts/rods, machine screws, and small diameter fasteners includes metric to standard bolt conversions. Compare DIN/ISO specs and find matching M1. This corresponds to a diameter of 0. 6 head diameter. The pitch P is the distance between thread peaks. To perfectly do so, finding the right size of drywall screw is crucial. 1640 ” for the actual size of the drywall screw gauge. As a result, you might notice a measurement of 6-32 x 1 1/2″. May 13, 2025 · What Do the Numbers Actually Mean? The first number (like #6, #8, or #10) refers to the screw’s diameter or thickness. The gauge of the screw is determined by the thread diameter, as pictured above. You may search for your product based on diameter by selecting a measurement on the Size dropdown. 047 The major diameter may be slightly different from the shank diameter, which is the diameter of the unthreaded part of the screw.