US Nut Size Table
| Size | Diameter* | Height |
|---|---|---|
| Hex Nut | Hex Nut | |
| 1/4″ | 7/16″ | 7/32″ |
| 5/16″ | 1/2″ | 17/64″ |
| 3/8″ | 9/16″ | 21/64″ |
What size wrench should you use on a 1/4 bolt?
Hex Bolt, Lag Bolt, Square Bolt and Heavy Hex Bolt.
| US Bolts | |
|---|---|
| Bolt Diameter (in) | Head and Wrench Size (in) |
| 1/4 | 7/16 or 3/8 |
| 5/16 | 1/2 |
| 3/8 | 9/16 |
How do I know what size nut I need for a bolt?
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 is a 1/4 inch nut?
Hex Nut: Dimensions &, Specifications
| Hex Nut Dimensions (ANSI/ASME B18.2.2) | ||
|---|---|---|
| 1/4 | 0.2500 | 0.212 |
| 5/16 | 0.3125 | 0.258 |
| 3/8 | 0.3750 | 0.320 |
| 7/16 | 0.4375 | 0.365 |
How do I know what size nut I need?
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. If the nut is US standard, count the smallest lines on the tape measure in sixteenths. Add the sixteenths together to find the size.
What size bolt has a 1 1 4 head?
US Bolt Head/Wrench Size
CONTINUE READING BELOW
| Bolt Diameter | Head and Wrench Size | |
|---|---|---|
| Hex Bolt – Lag Bolt – Square Bolt | Heavy Hex Bolt | |
| 1″ | 1-1/2″ | 1-5/8″ |
| 1-1/8″ | 1-11/16″ | 1-3/4″ |
| 1-1/4″ | 1-7/8″ | 2″ |
What size is M18 bolt?
Dimensions for DIN931 Hex Head Bolt
| Diameter (d) | Pitch | Across Flats (s) |
|---|---|---|
| M16 | 2mm | 24mm |
| M18 | 2.5mm | 27mm |
| M20 | 2.5mm | 30mm |
| M22 | 2.5mm | 32mm |
What is the standard bolt size?
US Standard Thread Length for Bolts
| Bolt Diameter | Standard Thread Length (in.) * | |
|---|---|---|
| Bolts 6 inches and shorter | Bolts longer than 6 inches | |
| 1/4″ | 3/4″ | 1″ |
| 5/16″ | 7/8″ | 1-1/8″ |
| 3/8″ | 1″ | 1-1/4″ |
How do I know what size socket I need?
How to Determine the Right Size Socket for a Nut
- Turn on the digital caliper and set it to read in inches, not millimeters. …
- Close the caliper jaws until each jaw rests on one flat side of the nut on opposite sides.
- Check the caliper display. …
- Turn on the digital caliper and set it to read in millimeters, not inches.
What size are M8 nuts?
M8 Hexagon Nuts (DIN 934) – Marine Stainless Steel (A4) Technical Specification
| Finish | Natural |
|---|---|
| Nut Width A/F (J) | 13mm |
| Nut Width A/P (P) | 14.95mm |
| Thread Pitch | 1.25mm |
| Thread Size | M8 (8mm) |
What size bolt fits a 1/4 nut?
US Nut Size Table
| Size | Diameter* | |
|---|---|---|
| Hex Nut | Machine Screw Nut | |
| #10 | – | 3/8″ |
| #12 | – | 7/16″ |
| 1/4″ | 7/16″ | 7/16″ |
What is the size below 1 4?
Metric / Standard Wrench Conversion Chart
| Bolt Diameter | Metric | Standard |
|---|---|---|
| 3/16″ | 10mm | 3/8″ |
| 1/4″ | 11mm | 7/16″ |
| 5/16″ | 13mm | 1/2″ |
| 3/8″ | 14mm | 9/16″ |
How are hex nuts sizes?
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.
How do you measure lock nut size?
If you measured at 50mm the size is 50 divided by 5, this gives us an 10 sized lock nut , 30mm would give us an 6 sized lock nut (30/5=6). To measure a lock nut simply measure it’s bore and then divide the measurement by 5.
Which type of threads have high strength?
Where the length of engagement is limited, fine threads provide greater strength. Their larger minor diameters develop higher torsional and transverse shear lengths. Fine threads require less torque to develop equivalent bolt preloads. Fine threads are more susceptible to thread galling than coarse threads.
What size head does a half inch bolt have?
Hex Bolt Head Size Chart
| Diameter | Head Size |
|---|---|
| 3/8″ | 9/16″ |
| 7/16″ | 5/8″ |
| 1/2″ | 3/4″ |
| 9/16″ | 13/16″ |
How much torque does a 1/2 inch bolt have?
ASTM A449 / SAE Grade 5*
| Bolt Size | TPI | Tightening Torque (ft lbs) |
|---|---|---|
| Plain | ||
| 1⁄2 | 13 | 75 |
| 9⁄16 | 12 | 109 |
| 5⁄8 | 11 | 150 |
What is M14 bolt?
The threads of an M14-2.0 screw, which is coarse, are spaced 0.079 inches (2.0 mm). A 9/16-12 screw, which is comparable in diameter and is also coarse, has its threads spaced 0.083 inches, which are farther apart, so there will be fewer threads per unit of measure (we used an inch in the table above).
What size is M4 in inches?
The threads of an M14-2.0 screw, which is coarse, are spaced 0.079 inches (2.0 mm). A 9/16-12 screw, which is comparable in diameter and is also coarse, has its threads spaced 0.083 inches, which are farther apart, so there will be fewer threads per unit of measure (we used an inch in the table above).
Are M6 and 1/4 20 the same?
I took the OP to mean that M6 fitted but was loose. This rules out 0BA which apart from the included thread angle is virtually identical, thus 1/4 BSF which has a similar pitch and slightly greater diameter. 1/4 20 tpi is either 1/4 Whitworth or 1/4 UNC, they are interchangeable for most purposes.
What is a M16 bolt?
Metric bolts are made fractionally under their stated size, for instance an M16 bolt will have a shank diameter of typically 15.97mm. This means that a 16mm bolt will fit through a 16mm hole but to allow for misalignment between parts it is common practice to drill bolt holes slightly larger.
Are Nuts and bolts same size?
Bolts commonly use four types of measurement, while nuts use only two. 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.
What does 8.8 mean on a bolt?
The two figures indicate the tensile and yield strengths of the bolt or screw. In the case of a 8.8 grade bolt the first figure signifies that the Tensile Strength is at least 800MPa. The second figure signifies that the fastener will begin to yield at 80% of the Ultimate Tensile Strength, i.e. at least 640MPa.
What are the different size bolts?
Common threads per inch sizes are: 4, 4-1/2, 5, 5-1/2, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 18, 20, 24, 28, 32, 36, 40, 48, 56, 72, 80. Most fasteners fall into coarse and fine categories, but there is also extra fine and other designations.
What is a 1/4 drive socket?
Drive sizes
1/4 inch – Used for smaller sockets and precision work. … 1/2 inch – 1/2″ sockets are generally used for nuts and bolts from around 10mm and up. A 1/2″ drive socket can apply enough force to undo all nuts on a car.
What are common socket sizes?
There are four common socket sizes: 1/4 inch (0.6 centimeters), 3/8 inch (0.9 centimeters), 1/2 inch (1.3 centimeters) and 3/4 inch (1.9 centimeters). In-between sizes are available too, starting with 1/4 inch (0.6 centimeters) and increasing every sixteenth of an inch (0.16 centimeters).
What size socket fits a 30mm nut?
Size Chart
| Bolt size | Size | Tolerance |
|---|---|---|
| 5/8″BSW | 28.61 | |
| 3/4″UNF | 1-1/8″ | 29.15 |
| 29mm | 29.58 | |
| M20 | 30mm | 30.58 |
What size is an M7 nut?
Dimensions for DIN934 Hex Fullnuts
| Diameter | Pitch | Depth of Nut |
|---|---|---|
| M7 | 1.0mm | 5.5mm |
| M8 | 1.25mm | 6.5mm |
| M10 | 1.5mm | 8mm |
| M12 | 1.75mm | 10mm |
How big is an M6 nut?
M6 (6mm) Thread Size. 5mm Nut Thickness (T)
Is M8 the same as 8mm?
M8 is not exactly 8mm but it is sufficient from a non-engineering point of view as long as the thread pitch is correct. Luckily, most commonly available metric bolts have the same pitch. Regarding tolerance for common uses it can also often be ignored.
Is 1363 a standard?
1. IS 1363 (Part 1):2019 /ISO 4016:2011 specifies the characteristics of Hexagon Head Bolts with thread size from M5 upto and including M64 of product grade C. Also Bolts may be of different property classes as specified in IS 1363 (Part 1): 2019 / ISO 4016:2011.
How do you match nuts and bolts?
Bolt, Nut and Washer Sizes
Match this outer diameter of a bolt to the inner diameter of a nut and a washer. For SAE nuts and bolts, diameters of 1/4 inch and smaller are listed with a # and a whole number (a bolt with a major diameter of 3/16 inch is a #10 bolt). Smaller numbers indicate smaller diameters.
What size head does an m12 bolt have?
Metric Hex Bolt Dimensions
| NOMINAL SIZE (D) | BODY DIAMETER | HEAD THICKNESS |
|---|---|---|
| m12 | 12.00 | 7.76 |
| m14 | 14.00 | 9.09 |
| m16 | 16.00 | 10.32 |
| m20 | 20.00 | 12.88 |
Are #14 and 1/4 screws the same?
We see that #14 would be 0.242 inches and #1/4 is 0.250 inches. One can see that this is only a 0.008″ or 0.2 mm (200 um) difference between screw diameters. It is not difficult to imagine many situations where this size similarity caused mistakes.
What size is a 3/4 nut?
Dimensions of Heavy Hex Nuts ASME B18. 2.2 used with Stud Bolts ASME B16. 5
| SIZE | Thickness | |
|---|---|---|
| 3/4 | 47/64 | 31.75 mm |
| 7/8 | 55/64 | 36.51 mm |
| 1 | 63/64 | 41.28 mm |
| 1.1/8 | 1.7/64 | 46.04 mm |
How do you read a hex bolt size?
How to Measure Screws &, Bolts – US &, Metric Sizing | Fasteners 101
What is the difference between a hex nut and a heavy hex nut?
What is the difference between a standard hex nut and a heavy hex nut? A standard hex nut, also referred to as a finished hex nut, has a smaller width across the flats and corners compared to a heavy hex nut, and a heavy hex nut is slightly thicker than a standard hex nut of the same nominal size.
How do I identify a bolt?
How to Measure and identify Bolts – YouTube
Why do threads fail?
Threaded fastener failure occurs when a bolt’s threading becomes stressed or misaligned, leading to gaps between the threads that invite more movement. Eventually this leads to dislocation or deformation of the fastener.
Are Nuts stronger than bolts?
Nuts are usually stronger than the bolts they are on, which is to say that the bolt will usually break before the nut strips. It is often said that two threads must be exposed above a nut. The reason for this is that the first two threads of a bolt are often poorly formed, and may not engage the nut properly.
Is fine thread or coarse stronger?
Size for size, a fine thread is stronger than a coarse thread. This is both in tension (because of the larger stress area) and shear (because of their larger minor diameter). Because of the smaller pitch, they allow finer adjustments in applications that need such a feature.