Quick Answer

You Asked What size is a 13 bolt?

Metric Bolt Head/Wrench Size

Bolt Diameter (mm) Head/Wrench Size (mm)
8 13
10 16
12 18 22/21*

What does bolt numbers mean?

The size of a metric bolt is specified using pitch, diameter, and length in millimeters. For example, in M8-1.0*20, the “M” means the Metric thread designation, the digit 8 refers to the Nominal diameter (in millimeters), 1.0 refers to the pitch, and 20 refers to the length.

What size is a m14 bolt?

Metric Hex Bolt Dimensions

m14 14.00 13.73
m16 16.00 15.73
m20 20.00 19.67
m24 24.00 23.67

What are all the bolt sizes?

Metric clearance and tapping drill hole sizes.

Size Clearance Hole mm Tapping Drill (std Pitch)
M5 5.5 4.2 mm
M6 6.5 5.0 mm
M8 9 6.75 mm
M10 11 8.5 mm

What size is a 12mm bolt?

Metric Shoulder Bolt Dimensions

Shoulder Diameter (A) Thread (C) Head Diameter (E)
8mm 6mm x 1.0 13mm
10mm 8mm x 1.25 16mm
12mm 10mm x 1.5 18mm
16mm 12mm x 1.75 24mm

What is M4 size?

The M4 machine screw has a thread diameter of 4 millimetres, in simple terms the M stands for millimetres followed by the size – in this case 4 mm.

What does #12 mean on a screw?

The number “12” is a size designator with no numerical meaning. The number “24” refers to 24 threads per inch. You can identify a 12-24 screw by measuring the diameter at slightly less than 7/32″ (5.55 mm).

How do you read a bolt?

How to Measure Screws &amp
Bolts – US &amp
Metric Sizing | Fasteners 101

What does M12 mean?

M12 is a matching coarse threaded nut. (To avoid confusion, we always include the thread pitch for both coarse and fine metric fasteners.) If you normally work with inch fasteners, pitch can be a little confusing—pitch is the distance between adjacent threads.

Does M14 mean 14mm?

M14 and 14mm are the same thing. M14 means that the kit is 14mm.

What is M14 in standard?

Thread Conversion Table

Metric Coarse Metric Fine BSF/BSW
M14 x 2 M14 x 1.5 9/16″
M16 x 2 M16 x 1.5 5/8″
M20 x 2.5 M20 x 1.5 3/4″
M24 x 3 M24 x 2 1″

Does M12 mean 12mm?

Yes. M12 is a 12mm diameter thread. You have to be sure the thread pitch measured in threads per millimeter (1.5 here) is the same as what u need.

What size bolt has a 1 head?

US Bolt Head/Wrench Size

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 a M5 screw?

The M5 screw has a diameter of 5mm. It is significantly thicker than an M4 but can be used in several applications.

What diameter is M10?

Spanner and Allen Key Sizes

Size Spanner Allen Key
M5 8 mm 4 mm
M6 10 mm 5 mm
M8 13 mm 6 mm
M10 17 mm 8 mm

What is M10 nut?

If the size is M10 x 25, that would mean that the diameter is 10 mm. Since there is no thread pitch listed, the fastener is assumed to have a coarse thread. The 25 indicated a length of 25 mm. A matching nut would be labeled M10, which also doesn’t require a thread pitch since it’s a course thread fastener.

What bolt has a 10mm head?

The standard 6mm cap screw has a 10mm head.

What does M12 mean on a bolt?

The first half (M12), is the size measurement (metric) taken across the outside diameter of the thread (which in this case is 12mm). The second half is the thread pitch, which is the measurement of threads/inch (which in this case is 1.75).

Is M4 and 4mm the same?

At the threaded bit, an M4 would be 4mm across.

Is M4 bolt 4mm?

0.7mm Screw Thread Pitch. M4 (4mm) Thread Size.

Is M4 screw 4mm?

But yes, broadly, take a 4mm rod, cut a thread on it with an M4 die, and it’ll fit into an M4 hole.

Is #12 screw the same as 1 4?

The diameters listed in the chart below are in fractions of an inch, so the #12 is just shy of 1/4 inch.

Are 10 32 and M5 the same?

10/32 is slightly smaller in diameter than M5. You can use a 10/32 screw in an M5 nut pretty safely. The inverse is not true.

What does UNC bolt mean?

When tapping bolts or threading screws, it’s essential to know the proper thread size. There are two main kinds of threads in the Unified Screw Thread (UST) Standard—UNF and UNC. UNF is the designation for Unified Fine Threads. Meanwhile, UNC denotes Unified Coarse Threads.

What does 8.8 mean on a bolt?

So, in English, a PC 8.8 bolt is a bolt with a nominal tensile strength of 800 MPa and a nominal yield strength that is 80% of the bolt’s nominal tensile strength, or 640 MPa.

What are the different grades of bolts?

Bolt Grade Markings

There are several grades of bolts but the three common grades for SAE are 2, 5 and 8. The common class (grades) for metric are 5.8, 8.8, 10.9 and 12.9. Each grade has a specific bolt strength. No matter the system used to grade the bolts, the higher number means the stronger the bolt.

How do you identify bolt grades?

You can usually figure out the grade, or strength, of a bolt by looking at the markings on its head. English bolts (U.S.S. or S.A.E) are categorized by grade, from grade 2 to grade 8, where the grade represents inch strength. The higher the grade, the stronger the bolt.

What does m8x1 25 mean?

For metric fasteners, you will see a M8 x 1.25 or an M8 x 1. For thread pitch, the distance between two points is the second number meaning the higher the number the fewer threads there are. This means the M8 x 1.25 is the coarse threading and the M8 x 1 is the fine thread.

What is M12 thread size?

What is M12 thread size?

Tap size Basic major dia (mm) Basic major dia (inch)
M10 x 1.5 10mm .3937
M10 x 1.25 10mm .3937
M12 x 1.75 12mm .4724
M12 x 1.25 12mm .4724

What size is an M4 bolt?

M3-0.50 and M3-0.35. M4-0.7 and M4-0.5. M5-0.8 and M5-0.5.