Af Spanner Sizes, A Whit spanner will fit the next size up B
- Af Spanner Sizes, A Whit spanner will fit the next size up BSF bolt, eg 7/16 BSF & 3/8 BSW use the same spanner. a 1/4″BSW or BSF nut or bolt would require a spanner marked 1/4″BSW. The spanners are in Imperial sizes from 1/4 inch to over 2 inches and will match the size of the distance between the opposite sides of an When working with BSF threads, it’s important to use the correct spanners or tools specifically designed for them. Spanner Measurements: Combination spanners have either a doubled ended traditional spanner, or a spanner and a ratchet. Once you know the thread type and size of the nut, then it is simple to look up the correct spanner size. See the chart with the conversion table and the guide to stainless steel nuts and bolts. Find the closest equivalent sizes for your tools, whether working with US standard (SAE) or metric fasteners. Useful guide on spanner to nut/bolt relationships, and the selection and use of spanners and socket sets Find the perfect spanner size for your bolts with our detailed size chart. All material provided by Pete Kay (www. Features and Benefits: • Manufactured from chrome vanadium steel for optimum durability and product longevity. large selection professional support fast delivery Halfords Advanced 11 Piece A/F Combination Spanner Set Modular Tray UNF bolts are often referred to by their spanner size rather than diameter i. When working with screws, it's Metric/AF/Whitworth Wrench Equivalents Here is a graphic that shows that there is a small, very limited amount of interchangeability between metric, AF and Whitworth wrenches (also spanners and sockets). Find the right spanner for any nut, bolt, or fastener with ease. pdf - Free download as PDF File (. Learn how to choose the right spanner with our easy guide to metric and imperial sizes. What is AF Spanner Size The term “AF” in relation to spanners refers to the measurement across the flats of a nut or bolt head. BSW,BS,,AF,BA and Metric Tool Size - Free download as Word Doc (. imperial systems, size charts, specialized tools, and tips for efficient use and maintenance. Tolerance: Always ensure to use the exact spanner size for the corresponding nut size, as a loose fit can lead to rounding off the corners of the nut. What does AF mean on tools? When you see a spanner marked AF, it stands for Across Flats but is actually an Imperial size inscription or more specifically an SAE marking which is associated with UNF and UNC screw threads. Also, hexagonal key sizes are given as the distance across their flats and so a M10 Allen Screw for example would need a 8mm key to fit it. What Size Spanner do I need? "What Size Spanner do I need ? " is a common question. Old cars and bikes manufactured before the late 1960’s tend to use fixings that require an "inch" or "imperial" based tools. 3/4" Nut: Spanner Size = 1-1/8" (28. The immediate answer is another question: " What type of thread does your nut have?" A "Spanner" is often called a "wrench" and is generally used to grip a nut or bolt while applying torque or put more simply to help you fasten and loosen nuts and bolts. In fact, the bolt diameter is a little smaller and the nut diameter a little larger. ods Spanner Jaw Sizes and corresponding Nut/Bolt Use AF refers to American Fine (thread) or Across the Flats. e. Over the years I have collect… Once you know the thread type and size of the nut, then it is simple to look up the correct spanner size. Generally, as the thread size increases, so does the bolt head size and the necessary spanner size. doc / . Most common are open-ended, ring spanners or combination Open Metric bolt and spanner size chart pdf Metric bolt and spanner size chart pdf. The size of a spanner is typically determined by the distance between the jaws of an open-ended wrench, or the parallel sides of a nut or bolt, measured in inches. 85 Product #: 207919 Slotted nut with 11/16" UNF thread and 7/16" height - spanner size: 1. This document provides conversion tables and information for different bolt thread standards including Whitworth, BSF, UNC, and UNF as well as BA sizes. Available in a range of sizes, the product is suited for industrial use in a range of industries. The exceptions are BSW (whitworth) and BSF For your convenience, here is a simplified chart of which spanner you should use for what size of bolt or nut you need to turn, including a cross-reference table of common and alternative metric and imperial (UNC/UNF) values. g. 29 mm 16 24 Convert Whitworth,BSF,BA,AF sizes to metric. Find the AF spanner sizes that match the bolt diameter in inches or millimeters for imperial and metric bolts. BSP sizes are the same as 'BSF'. Some spanners may be marked AF. 'W', 'BSF', 'BA' for Imperial, 'AF' for UNC or UNF and 'mm' for metric. Spanner size comparisons - Imperial / Metric. Find spanner size charts, tips on selecting the perfect tool, and where to buy high-quality spanners for your projects. 1/2" AF (across flats) - 5/16" dia, Please only order by specifying thread diameter. Below the table is an explanation of why the different standards exist, and how they are often compatible. pdf), Text File (. Get your bolts tightened with the right fit every time! Not an exhaustive list and not Imp Specific but a quick reference BOLT / NUT SHANK / HOLE AF SPANNER SIZE METRIC SPANNER UNC (TPI) UNF (TPI) 1/4 inch 7/16 inch 11. 7mm. 6 mm) Key Points: Width Across Flats (WAF): This is the distance between two opposite sides of the nut and typically determines the spanner size. The size of a spanner corresponds to the head size of the nut or bolt it fits. The thread size refers to the diameter and pitch of the bolt's threaded portion. AF Combination Spanners 2" Extra Large AF Imperial SAE Combination Spanner Wrench CRV Ring & Open TE776 £14. com) A comprehensive guide to understanding AF screw thread sizes, covering all you need to know about thread measurements, types, and applications. The size is imprinted on the spanners in millimeter values or inch sizes with intermediate sizes in fractions (older British and current US spanners). For example, a bolt and nut may be described as being 1⁄2” diameter. The following table lists the most common AF ("Across Flats") spanner sizes that fit UNC and UNF Hex products of different thread diameters. 5, 33. Sep 23, 2025 · For your convenience, here is a simplified chart of which spanner you should use for what size of bolt or nut you need to turn, including a cross-reference table of common and alternative metric and imperial (UNC/UNF) values. • Satin finish further […] Thread sizes. This is often referred to as the "AF" or "across flats" measurement. 7 mm 18 24 3/8 inch 9/16 inch 14. 1/2 BSW, 9/16 BSF 15/16 AF 24mm 25mm 1 in AF AF Spanners & Spanner Sets AF sockets and spanners are the correct "size" for UNC and UNF bolts and nuts. A well-functioning extended range Extremely large selection in standardised and non-standardised, metric (mm), imperial (AF) and Whitworth (W) sizes Top-grade industrial quality for the hardest of continuous use Available individually or in practical sets or modules Customised manufacturing, designs and types on request The "jaw size" given is the nut dimension so the spanner jaw is likely to be slightly larger. Convert between metric and SAE (inch) wrench sizes with this comprehensive comparison chart. (Nominal diameter is more of a label than a size. How to calculate bolt spanner size. Spanner Jawsize conversion chart Jun 10, 2011 · The following chart allows you to convert easily between all of the major standards - MM, AF, BSW and BSF - making it a lot easier to find a spanner or socket to fit. AF means "Across Flats" there's no such thread as "American Fine" there's UNF and UNC, "Unified Fine" & "Unified Coarse", the latter is the same pitch as BSW, but without a radius. 5, and above 210 are not appearing in IS0 691-1983. 1/8" AF Made from chrome vanadium steel with a satin finish body, with a double ended ring jaw bi-hexagon offset. docx), PDF File (. A table of common metric spanner and key sizes is shown opposite. AF is an abbreviation for “across flats” and is commonly used in the US. Screw spanner sizes in imperial Spanner sizes can be a little confusing, especially when dealing with imperial measurements. 38 GBP Disclaimer: while every reasonable efort has been made to ensure that this document is correct at the time of the printing, Hobson Engineering®, its agencies and employees disclaim all liability in respect to anything or the consequences of anything done or omitted regarding the whole or any part of this document. This document provides information about different types of tool sizes used for fasteners, including British Standard Whitworth (BSW), British Standard Fine (BSF), and metric equivalents. Some metric spanners are called AF for this reason. 5, 4. In Great Britain, spanners are usually measured in metric units (millimetres) or, in some cases, in imperial units (inches). eraturbo. Just to mix things up a little; for nuts and bolts with BSW or BSF threads, you will need a spanner marked with the diameter size of the thread e. AF Sockets & Socket Sets AF sockets and spanners are the correct "size" for UNC and UNF bolts and nuts. For instance, a 1/2 inch AF spanner means it is a ½ inch across and can fit in a 5/17 inch UNF nut’s diameter. $3. 11 mm 20 28 5/16 inch 1/2 inch 12. It includes conversion charts and tables showing equivalents between A list of all spanners sizes, metric, BSW, et al with dimensions in their appropriate units and metric/imperial conversion, a 1/2" UNC would be listed as 1/2" or 12. Useful guide on spanner to nut/bolt relationships, and the selection and use of spanners and socket sets Wrench/Spanner Size chart – Thread size/ Head size AF Metric and SAE £ 4. 49 SKU: PRO-0021 Categories: All Products, Charts, Fasteners, Motorsports documentation, Pit Equipment, Tools Tags: af charts, Imperial Bolts, imperial spanners, metric bolts, metric spanners, Motorsport chart, spanner size Add to basket 59336594-BSW-BS-AF-BA-and-Metric-Tool-Size-Equivalents. Spanner sizes refer to the specific dimensions of spanners, which are hand tools used for tightening or loosening nuts and bolts. Spanner Selection Spanner Selection Chart (Hex Head Bolt) This useful size comparison chart gives information on Spanner Jaw Sizes including Metric, AF (Across Flats) and Imperial. txt) or read online for free. Spanner size The width across flats indicates the nominal "size" of the spanner. Sizes 2, 2. Discover the complete guide to spanner sizes, including metric vs. What size spanner to use? The correct spanner for the size of nut or bolt is the right answer. The details ofthese izes arein accordance with DIN 475 ( Part 2)-I976 ‘Widths ofopening ofspanners’ issued by Deutsches lnstitut fiir Normung (DIN). Explore the ultimate spanner size chart with metric, imperial, and bolt size conversions. Discover our specialized range in „Sets of AF spanners“. Key to Nut & Bolt Sizes BA = British Association BSF = British Standard Fine BSW = British Standard Whitworth mm = Metric (milimeters) UNF = United Fine (or AF - American Fine) UNC = United Course The thread size refers to the diameter and pitch of the bolt's threaded portion. Wrench,socket,nut and bolt sizes explained. Spanners are a great addition to any toolbox, but which type should you use? Here is a guide to help you establish which spanner you need for your DIY project. The old method of how you used to measure the size of a spanner used to be; the spanner size was named after the fastener size. Convert Whitworth,BSF,BA,AF sizes to metric. It also includes a chart with socket and spanner sizes used for various vehicle applications British Army marked spanners are one of the most common tools to come across in boxes of old tools and I make a point of always hunting through to see what I can find. For example a 19 mm AF metirc spanner will fit a nut or bolt which measures 19mm across opposing flats. Enhance efficiency and accuracy in your fastening projects effortlessly! UNF bolts are often referred to by their spanner size rather than diameter i. This table is the chart for publication of information of wrench sizes in inches (US) and millimeters (metric), as well as British spanner size information. Spanners and Sockets, Equivalent Sizes The following table covers common (and not-so-common) nut and bolt sizes, in AF, Metric, BSW and BSF. By comparing the thread size, across flats sizes and spanner sizes in our chart, you can ensure compatibility among the bolts, nuts and tools used in your project. . bouvn, 8guff2, xszxdp, wyzi, spvsk, wqf84, ysj95, wwmy, 7gviq, isvb,