spanner size formula

Below is that bolt chart with wrench size. For metric there is some kinda formula: spanner size is the Square root x bolt size, then rounded off. Let’s understand this with another example. Which wrench you do need for a specific bolt? Suppose a bolt size is more than M14, then you need to apply this formula: (bolt size*1.5) Example: bolt size is M20, then the spanner size will be (20*1.5) =30mm. For the 'British' sizes, the nut/bolt size corresponds to the spanner marking (i.e. Related Topics . Now here, the spanner size would be (3*1.5) +1=5.5mm. For bolt size up to M14 bolt spanner size is dia*1.5+1=SPANNER size. Hex Key Size 3/16 1/4 5/16 3/8 3/8 7/16 Diameter M16 MIO M12 M14 M16 M18 M20 M22 M24 M30 Wrench Size 7 mm 8mm 10mm 13mm 17mm 19mm 22mm 24mm 27mm 30mm 32mm 36mm 46mm Hex Key Size 3 mm 4mm 5mm 6mm 8mm 10mm 12mm 14mm 14mm 17mm 17mm 19mm 22mm 1 1 1/2 5/8 3/4 3/4 7/8 7/8 1/4 1/2 1 2 2 2 7/8 /16 1/4 5/8 . ASME/ANSI B16.5 - Flanges and Bolt Dimensions Class 150 to 2500 - Diameters and bolt circles for standard ASME B16.5 flanges - 1/4 to 24 inches - Class 150 to 2500 I need to know which cone hub spanner size i need for theses 3 hubs : Giant Sport Tracker Disc, 32h Formula DC 22 rear disc, QR Formula DC 51 alloy disc w/15 mm Are the sizing specific to a specific hub or it apply to the whole brand ? Bolt Chart With Wrench Size. Chart for imperial measurements. Above from M16 bolt spanner size is dia*1.5= SPANNER size ... 1 decade ago. The answer varies and you will need a long table to get all the information needed. Confusion can arise because each Whitworth hexagon was originally one size larger than that of the corresponding BSF fastener. a 1/2" W spanner fits a Whitworth bolt with a shank/thread diameter of 1/2"). The size of the bolt head also increases proportionally. So, a 14 spanner would be a metric size 14 box-end wrench. Wrench Sizes Or Spanner. The 'sizes' of Whitworth spanners refers to the diameter of the threaded stud, and not the bolt head itself: it is not an AF system. The Y axis is measurement in millimeters. What is the spanner size and bolt size relationship? We will explain and define all the values such as diameter of a bolt, head and wrench size. This leads to instances where for example, a spanner marked 7 ⁄ 16 BSF is the same size as one marked 3 ⁄ 8 W. In both cases the spanner jaw width of 0.710 in, the width across the hexagon flat, is the same. RE: Spanner size - Bolt Size. 1.5d+ 1 or 2, where d is the bolt size. example M12 bolt 12*1.5+1= 19 spanner. For this reason, BSF spanners are one size larger than the equivalent BSW, despite the fact that the bolt head is exactly the same size. Miscellaneous - Engineering related topics like Beaufort Wind Scale, CE-marking, drawing standards and more; Fasteners - Bolts, nuts and threaded rods - torque, tension and loads; Related Documents . The X axis is the gauge size. MikeMilburn (Mechanical) 12 Jan 02 07:46 A very rough rule of thumb is the wrench size is 1 1/2 times the bolt size, ie, a 1/2" bolt-3/4" wrench, 1" bolt- 1 1/2" wrench. The table below shows common sizes of thread and their equivalent wrench or spanner size. Hello!
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