Table of Contents
Hex keys are measured across-flats (AF), which is the distance between two opposite (parallel) sides of the hexagon.Metric sizes 0.7, 0.9, 1.0, 1.25, 1.3, 1.5. 2 to 6 in 0.5 mm increments. 7 to 22 in 1 mm increments. 24, 25, 27, 30, 32, 36, 42 and 46 mm.
How do I know my hex key size?
As long as you know how to measure a hex key, you can always determine the size you have. Hex keys measurements are done across-flats or AF. This simply means that they are measured from one flat side of the head to the one directly across from it.
How do I know my Allen bolt size?
To measure the diameter of screws and bolts, you measure the distance from the outer thread on one side to the outer thread on the other side. This is called the major diameter and will usually be the proper size of the bolt.
How are Allen keys sized?
Allen Keys – Imperial Hex size Length long arm Length short arm 0.05 inch 83 mm 14 mm 1/16 inch 91 mm 15 mm 5/64 inch 100 mm 16 mm 3/32 inch 112 mm 18 mm.
Are all hex keys the same size?
Common SAE Hex Key Sizes Adding to our precision sizes, the common SAE Allen wrench sizes are 1/16″, 5/64″, 3/32″, 7/64″, 1/8″, 9/64″, 5/32″, 3/16″, 7/32″, 1/4″, 5/16 “, & 3/8″.
What is hex size?
Hex nut size refers to its nominal thread diameter. Typically, sizes range from 1/4″ to about 2 1/2″. Size is specified in inches, usually fractional rather than decimal. Table 1 lists width across flats and across corners, and thickness.
Are Allen keys and hex keys the same?
A hex key, also known as an Allen key is a simple tool used to drive bolts and screws with hexagonal sockets in their heads. From standard keys in chrome vanadium steel to extra-long with ballpoint heads in chrome molybdenum steel, there are a wide variety to choose from.
What size is a number 4 Allen wrench?
However, the 1/4″ SAE hex wrench will likely work in place of a 6.5 mm wrench.MM Substitutes for SAE. Metric Hex Key Imperial Hex Size 3 mm 1/8 3.5 mm 9/64 4 mm 5/32 5.5 mm 7/32.
Are Allen keys metric or imperial?
Imperial vs metric hex keys Note, too, that hex keys and Allen wrenches are often sold in both metric and imperial (or SAE) versions, depending on the brand, supplier and origin/purchase location.
What is the smallest size hex key?
1.5 mm Short Arm Hex Key L-Wrench 2 Pack Small Metric Sizes (1.5mm).
What is the largest Allen key size?
What sizes do Allen wrenches come in? Allen wrenches can be measured in both millimeters or in standard sizes, which uses inches. Small specialty Allen wrenches can be as tiny as 2mm, or sizes larger than 25mm.
Why are Allen Keys called Allen keys?
Originally named Allen Manufacturing Company, the business produced hexagonal set screws and wrenches to fasten them. The terms “Allen wrench” (American English) and “Allen key” (British English) are derived from the Allen brand name and refer to the generic product category “hex keys”.
What can I use instead of a hex key?
Sometimes you can use small types of flat headed screwdrivers as an allen wrench by putting the end in the socket so that the 2 edges of the screwdriver work as leverage in the hole to turn it. A wider socket on the bolt or nut, use a wider flathead screwdriver.
What is SAE hex key?
Collection: SAE Allen Hex Sets Hex keys are used to drive bolts and screws and are often found in machinery and construction settings. SAE Hex Key Sizes: .050″, 1/6″, 5/64″, 3/32″, 7/64″, 1/8″, 9/64″, 5/32″, 3/16″, 7/32″, 1/4″, & 5/16″.
How do you size a hex nut?
Stretch the tape measure across the nut’s diameter to the flat-side directly across from the one your pulling from. If the nut is metric, count the number of lines on the tape measure to find the measurement. If you count 9 lines, the size is a 9-mm (millimeter) nut.
How do you use a hex key?
Allen keys work like most other screwdrivers and wrenches but with a few nuances. You can use them by placing one of the ends inside a fastener with a hexagonal socket head and turning it. Turning the Allen key clockwise will tighten the fastener, whereas turning it counterclockwise will loosen or remove the fastener.
Can you use Torx instead of hex?
Torx to Allen Key Conversions We actually don’t recommend using your torx wrenches in place of a hex key or Allen wrench. With that being said, torx size, T9, won’t doesn’t really work with any of the SAE hex sizes. However, it’s actually a perfect match for metric size, 2.5 mm.
Is Torx better than hex?
The Torx design allows for a higher torque to be exerted than a similarly sized conventional hex socket head without damaging the head and/or the tool.
What size hex key does IKEA use?
The Allen wrench bits you want are in sizes 3mm and 5mm. The smaller one, 3mm, is used the most with Ikea furniture, while the 5mm one is also common.
What size is M3 Allen key?
Allen Key Sizes and Dimensions for Checking Accessibility Screw Size Allen Key Size, s A M3 2.5 56 M4 3 63 M5 4 70 M6 5 80.
Is there a 2.25 mm Allen wrench?
Designed for the miniature fasteners this basic aluminum handle comes with a 2.25mm hex nut wrench #29212. The hex wrench is for hex nuts that measure 2.25mm across the flats of the hex material or across the Star corners. Please note we also carry wrenches for 2.0mm and 2.5mm hex material.
