
Full Answer
What size socket or wrench is needed?
You at least need a set of 3/8″ (drive size) sockets set with sizes 8-19mm. Some vehicles use Allen or Torx bits for the caliper guide pins. Torx and Allen bits are not interchangeable. The wrong bit may feel like it fits, but it might damage the female head of the bolt.
What size bolts standard or metric?
Metric nuts and bolts are commonly referenced using ‘M’ sizes, for example: M3, M8, M12. But the size of a metric fastener is more accurately specified using diameter, pitch and length dimensions, in millimeters. For nuts the size dimensions used are simply diameter and pitch. The letter ‘M’ indicates that this bolt uses a metric thread.
What sizes do metric wrenches come in?
Wrenches:
- Standard Combination Wrenches (1/4, 5/16, 11/32, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, and 1).
- Metric Combination Wrenches (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, and 19).
- Standard Flare Nut Wrenches (3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, and 7/8) Note: Each wrench may combine two sizes.
How to measure bolts, screws or nuts?
How to Figure Out the Size of Screws, Bolts, and Nuts
- Check Out the Hardware Store. Most (if not all) hardware stores have sizing plates that you can test your fasteners on, with both male and female options, as well as ...
- Buy Your Own Sizing Plates & Thread Checkers. ...
- Print Out Size Charts for Free. ...

What size nut fits a 15mm wrench?
Metric Fasteners - Wrench size needed for Driving common NutsScrew SizeWrench Size *Alt Size, Flange Nuts **M813mm13mmM1017mm15mmM1219mm18mm8 more rows
What bolt takes a 15/16 wrench?
US Bolt Head/Wrench SizeBolt DiameterHead and Wrench SizeHex Bolt - Lag Bolt - Square BoltHeavy Hex Bolt5/8"15/16"1-1/16"3/4"1-1/8"1-1/4"7/8"1-5/16"1-7/16"13 more rows
What size nut takes a 15/16 wrench?
US Bolt Head/Wrench Size TableBolt DiameterHead/Wrench Size1/23/47/89/1613/16-5/815/161-1/163/41-1/81-1/413 more rows
What size socket is the same as 15mm?
Metric Socket Sizes Chart3/8″ Drive1/4″ Drive1/2″ Drive11mm8mm14mm12mm9mm15mm13mm10mm16mm14mm11mm17mm18 more rows•Apr 17, 2021
What size bolt uses a 14mm wrench?
Metric / Standard Wrench Conversion ChartBolt DiameterMetricStandard3/16"10mm3/8"1/4"11mm7/16"5/16"13mm1/2"3/8"14mm9/16"39 more rows•Apr 9, 2020
Are 24mm and 15 16 the same?
22mm = almost 7/8 inch. 23mm = 29/32 inch. 24mm = just over 15/16 inch.
How do you determine bolt nut size?
Bolts are measured in length of shank, bolt head size, width of shank (the diameter of the threaded bolt body) and the thread pitch (the size of the thread). Nuts are measured by the width of the hex shape and by their thread pitch.
How do I know what size nut I need for a bolt?
Diameters of Screws / Bolts 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.
What size nut is on a 5'8 bolt?
US Nut Size TableSizeDiameter*Hex NutMachine Screw Nut1/2"3/4"-9/16"7/8"-5/8"15/16"-17 more rows
Can you use standard sockets on metric bolts?
Yes, you can use some sockets on both metric and SAE sizes. However, you need to be careful, as most times they are not exactly the same, and you can strip a bolt by using an SAE socket on a metric bolt and vice versa.
What are the socket sizes in order?
Six Point Standard Sockets (3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 1)
How do I know what size socket wrench I have?
It's important to note that socket sizes are actually given in two measurements, namely: The size of the drive socket (the part that attaches to the socket wrench). These are always given in imperial measurements, and will usually be either 1/4", 3/8", 1/2", 3/4" or 1".
What is a 19mm socket in standard?
1/2" Drive 12 Point Standard Metric Socket 19mm.
What are metric socket sizes?
Metric sockets: Ideal for working on imported vehicles, metric sockets' sizes are measured in millimeters. The most commonly used types are 8 mm, 10 mm and 14 mm sockets.
What is equivalent to a 13 mm socket?
SAE to Metric Conversion ChartSAEMetricInch12mm0.4721/2"0.513mm0.51217/32"0.53147 more rows•Apr 29, 2020
What are the 3 common sizes of ratchets?
Available with different drive sizes — 1/4 inch, 1/2 inch and 3/8 inch — to operate different size sockets. Most operate with a geared drive; those with a higher tooth count let you operate the tool with a smaller swinging motion, which is useful when there's little room to move the handle.
What is hand tool essentials?
Hand Tool Essentials isn’t just another DIY woodworking blog. We help everyday people bring superior craftsmanship to their home workshop. That is, our goal is to help you craft like a master woodworker. All of our tool charts & home improvement articles have been optimized for viewing on your phone while out on the job.
Is it safer to use SAE or metric wrenches?
With that being said, it’s generally safer and more efficient to use SAE wrenches with SAE bolt sizes and metric wrenches on metric hardware. When reading our wrench conversion chart, start with the bolt that you are fastening.
What is pitch in bolts?
But it is easier to specify the components by a single size designation since the bolt and nut are mating components.) Pitch is the distance from the crest of one thread to the next or the distance from one thread groove to the next, measured from crest to crest. Pitch is also described as the number of threads per inch.
What is nominal diameter?
NOMINAL DIAMETER (NOMINAL BOLT DIAMETER) The diameter equal to the external diameter of the threads or the overall diameter of the part. (Nominal diameter is more of a label than a size. For example, a bolt and nut may be described as being ½” diameter.
