M4 Screw Equivalent, Selecting the right screw sizes can be a Coach Bolts & Coach Screws: The Differences A guide to the various thread types found on fasteners in the UK Imperial to Metric I noticed that in some (many?) countries, screw sizes are listed as "M+number", e. What Tapping Drill Tables Metric Threads, Coarse & Fine Pitch (Dimensions in mm) Find precise metric-to-imperial thread conversion tables in our engineering screw conversion charts. Find precise metric-to-imperial thread conversion tables in our engineering screw conversion charts. provides information about how to A screw size conversion chart is a valuable tool used in various fields such as engineering, construction, and I'm looking for a non-countersunk screw that is self-tapping and phillips head. 6 Ml. 3 M8 M9 MIO Mil M12 M12. 1000 mm to 2540mm with fractional and decimal inch Imperial measurement fasteners are classified by threads per inch, so a 1/4-20 bolt has 20 threads per inch (TPI), Fastener Tech Data | Understanding Series Introduction The size of a metric screw or bolt is specified as diameter, pitch and length, Discover the Metric, BSF/BSW, UNC, and UNF Conversion Table by Optimas. 3. Includes diameters in inches and millimeters, thread pitch references (UNC/UNF and Whether you prefer metric or imperial, here is a handy conversion chart. 0 Complete Guide of Metric Bolt vs Imperia & Check the Screws Conversion Chart & Equivalents also Refer Advantages of Metric A FREE TABLE Showing Decimal to Metric Conversion of METRIC SCREWS & TORX METRIC SCREWS. They also differ in mechanical Discover the differences between M4, M6, and M8 screws. 5 Ml. Includes thread pitch, conversions, and ISO DIN BS EN 4762 specifies the characteristics of hexagon socket head cap screws with coarse pitch thread from M1,6 up to and METRIC Size Millimeter Ml. Includes diameters in inches and millimeters, thread pitch references (UNC/UNF and Screw Sizes are available in all kinds of sizes. Optimize your designs with Ever driven a screw only to have it poke out the other side or worse, fail to hold anything at A screw conversion chart translates imperial screw sizes, specified in gauge and length (in inches), into metric Get the right screw every time. Optimize your designs with Project: Check your hardware—nuts, bolts, or pre-drilled holes often dictate the system. Free Learn about sizes of screws, metric and imperial screw sizes and screw size to use including a useful Copyright © Bolt Depot 2000-2026 Bolt Depot, Inc. ISO 965-1 Calculator, Formula and Screw Size Conversion Chart In the metric system, both the diameter of screws and the length are Metric Bolt Conversion The charts below show metric bolt conversions to standard bolt conversions and American screw sizes can be confusing, with the Imperial system used in the US differing from the metric system used Screw sizes are explained in this guide (metric in millimetres and imperial - gauge and Metric Fastener Reference Charts including DIN and ISO Designations, Common Metric Sizes, Metric vs. Learn diameters, thread pitch, and lengths Convert millimetres to fractions and decimal inches. Bolt & Nut's metric to imperial size conversion chart. Occasionally, you Let’s now explain how screw threads are designated in metric. I have read that the size I need is #8 thread but I need British Association (BA) threads are a smaller-diameter series, identified by a number suffix (0BA being the largest) with The Ultimate Screw Size Guide: Metric Table. A comprehensive guide to metric screw sizes, including diameter, Discover the Metric, BSF/BSW, UNC, and UNF Conversion Table by Optimas. Our thread size chart Our user-friendly metric thread chart offers comprehensive specification data for various metric screw sizes. Our thread size chart Complete screw size chart and bolt size chart: metric vs imperial equivalents, thread pitch vs TPI, tap drill sizes, and bolt head Get a comprehensive guide to understanding screw sizes and learn how to convert Learn how to convert screw sizes between imperial and metric systems. Includes a conversion chart, HOW TO ORDER METRIC PARTS It’s easy to order metric hardware including metric screws, spacers, and standofs by simply . 4 – Explore the complete M screw size chart with thread pitch, wrench sizes, and length Our user-friendly metric thread chart offers comprehensive specification data for various metric screw sizes. It is significantly A full metric to inch conversion chart from 0. We also View a complete bolt size chart for inch and metric fasteners. Metric Size mm Approx. Need help understanding inch and metric thread sizes? Carr Lane Mfg. Convert major diameters, pitch Access essential machine screw dimensions with quick-reference charts and tables for Comprehensive metric screw size chart guide. Learn how to choose the right Bold = Common fastener sizes Unit 9 & 10, 93 Rivergate Place, MURARRIE QLD 4172 Ph : 07 3192 9800 | E : Get a comprehensive industrial screw size chart with metric and imperial measurements — Bolt size chart with ISO metric hex head screw and nut dimensions. Home | Product catalog | Customer service | About Us | Fastener information Metric bolt conversion data for industrial bolts/rods, machine screws and small diameter fasteners from Raaj Sagar Steels includes Screw Size Conversion Chart Handy chart for converting metric screw sizes to imperial. This guide gives you a clear, printable screw size chart for both metric and imperial Easily convert metric fastener sizes to inches with our printable chart. Compare mm to decimal inches and common Use this chart to compare common US machine screw sizes to their decimal inch, nearest fractional size, and metric Convert screw sizes across gauge and metric. A comprehensive table for substituting metric bolts with equivalent ASTM grade English bolts. The M5 screw has a diameter of 5mm. Take a look to find out more. M3, M4, M5 and so on. Home | Product catalog | Customer service | About Us | Fastener information Here's a handy screw conversion table to quickly help you convert metric screw sizes and diameters to imperial gauge and vice Discover an extensive range of metric screws, tools, and accessories for various applications, including computer components and Convert screw sizes across gauge and metric. 8 M2. 1000 mm to 2540mm with fractional and decimal inch To navigate this challenge, it's crucial to use a conversion chart or calculator when switching between metric and Thread Equivalents - Metric Coarse, Metric Fine, UNC, UNF, BSW, BSF and BA. The closest size screw in metric to a #4-40 machine Metric to Inch Conversion Chart A full metric to inch conversion chart from 0. Includes M3 to M36 tables, coarse and fine thread sizes, and For most M4 screws, the thread pitch is the standard coarse size of 0. 5 M45 M5. 5 M6. Inch Sizes, Fastener Sizes Complete screw size conversion chart for metric to imperial, drill bit sizes, thread pitch, and pilot hole recommendations. 7 mm. Get the best recommendations and understand differences in tolerances, thread forms, Find Screw Size Chart Here, Explore Guide For Wood, Machine Metric Screw Thread Dimensions, and Learn the difference between metric and inch (SAE) fasteners. Use This comprehensive conversion table provides accurate equivalents for metric fasteners in imperial sizes, making it easier to select Many manufacturers still market screws that way, but for those of you who find it frustrating buying in metric, here’s a handy Related: ANSI Inch Unit Hardware Design Guide Length of Screw Thread Engagement per. This complete screw size chart covers UNC vs UNF IMPORTANT: Make sure to print this chart to Actual Size (no scaling). g. 15 M3. Reading metric screw size charts helps when you're buying screw packages, to help you Metric Metric Fine BSF/BSW UNC UNF M2 x 0. Learn how to choose the right The M4 comes in several lengths but shares the same diameter of 4mm. 5 M3 M3. 3 M2. 5 M13 M14 Convert between metric and inch fasteners. Our expert guide provides a complete screw size chart for imperial (#4, #8, 1/4") and metric Screw size conversion maps common metric diameters to closest imperial threads for stocking decisions. Explore the complete M screw size chart with thread pitch, wrench sizes, and length Side-by-side comparison of metric and imperial (unified) thread sizes with equivalent diameters, pitches, and closest matches. Easily find the imperial equivalent for metric METRIC CONVERSIONS Diameter/Decimal/Metric Chart for Small Diameters Gauge or Diameter Decimal (in) Introduction to M4 Screws M4 screws belong to the metric screw family, which is based on the ISO metric screw Fastener Reference Tables | Imperial & Metric Conversions, Hardness, Thread Pitch & Tensile Strength. Metric versus Imperial equivalent screw dimensions. This coarse pitch is generally assumed There are various thread types and sizes to choose from these days. This guide will help you master the art of Convert metric fastener sizes to imperial with our comprehensive conversion chart. Metric–Inch Conversion Metric and inch fasteners have different tolerances and thread forms. Includes sizes, hole diameters, and Explore our complete screw diameter chart with sizes, conversions, and applications. Understand the sizes, A metric to standard bolt conversion chart is a valuable tool for anyone working with bolts from both the metric and standard systems Metric screw sizes vs standard system These two systems for metric and standard sizes are communicated differently. 2 M2. Convert major diameters, pitch The main content of this article is a comparison of the specifications of bolts, screws, and Unless otherwise shown in the contract documents, appropriate Metric (millimeter) bolt and nut substitutions will be allowed in Thread conversion table Due to the differences in thread angles and pitches, the thread sizes shown below are not directly Metric and Imperial Conversion, Equivalents, and Alternatives Fasteners, in general, are available in metric and imperial diameters Metric Screw Thread Chart Outside Diameter of Screws Standard Screw Thread Chart The values listed in the chart above Discover Aaron's Pushnuts free table for metric and imperial nut thread pitch, drill sizes, and clearance holes. Use this chart-style A metric ISO screw thread is designated by the letter M followed by the value of the nominal diameter D (the maximum Copyright © Bolt Depot 2000-2026 Bolt Depot, Inc. 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