They are typically 1/2 the thickness of a standard nut for the same size fastener.

How thick is the head of a hex bolt?

Metric Hex Bolt Dimensions

m10 10.00 6.63
m12 12.00 7.76
m14 14.00 9.09
m16 16.00 10.32

How thick are hex nuts?

– The diameter range of hex thick nuts is from ¼ to 1 1/2 inches according to standard.

How do you size a hex nut?

Place the end of a measuring tape on one of the flat sides of the nut’s outer perimeter. 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.

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 bolt has a 1/2 hex head?

Hex Bolt Head Size Chart

Diameter Head Size
7/16″ 5/8″
1/2″ 3/4″
9/16″ 13/16″
5/8″ 15/16″

What is heavy hex bolt?

Heavy hex bolts have a larger head than a standard hex bolt. They are used for bridges, highway, buildings and other construction projects. Heavy hex bolts work well with construction materials such as wood and steel.

How thick should a nut be?

Nuts in sizes 5/.. in. nominal size and smaller shall be double chamfered. Larger size nuts shall be double chamfered or have washer faced bearing surface and chamfered top.
Nut Thickness.

Basic Thread Diameter F Flat Width H Thickness
.25 0.500 0.234
.5 0.875 0.484
.5625 0.938 0.547
.625 1.062 0.609

What material are hex nuts made of?

316 Finished Hex Nuts are made from 316 stainless steel , an austenitic alloy which differs from 18-8 by its molybdenum content (2-3%) and a higher nickel content (10-14%).

What is heavy hex?

Heavy hex bolts have larger and thicker heads than regular or standard hex bolts, and are commonly used in a wide variety of applications. These building fasteners are available in different sizes, both lengths and diameters, although all come with a hex head.

How do you measure a hex bolt head?

For fasteners where the head usually sits above the surface, the measurement is from directly under the head to the end of the fastener. For fasteners that are designed to be countersunk, the measurement is made from the point on the head where the surface of the material is, to the end of the fastener.

What does M stand for in bolt sizes?

Taking a closer look at this description, let’s explore its meaning: M = This designates the fastener is a metric size. 10 = The nominal diameter in millimeters. 1.0 = The thread pitch, or distance between threads, in millimeters. 20 = The fastener’s length, in millimeters.

What size are M8 nuts?

M8 (8mm) Thread Size.

How many mm is M6 nut?

This short guide is intended to give you the information you need to be able to correctly identify and use the metric nuts and bolts most commonly found in plant and machinery.
Spanner and Allen Key Sizes.

Size Spanner Allen Key
M6 10 mm 5 mm
M8 13 mm 6 mm
M10 17 mm 8 mm
M12 19 mm 10 mm

What M size is a 8mm nut?

Metric clearance and tapping drill hole sizes.

Size Clearance Hole mm Tapping Drill (fine pitch)
M5 5.5
M6 6.5 5.25 mm
M8 9 7 mm
M10 11 9.0 or 8.75 mm

How thick is an M8 nut?

6.5mm Nut Thickness (T) 0.13mm General Tolerances.

What does 8.8 mean on a bolt?

So, in English, a Property Class 8.8 bolt is a bolt with a nominal tensile strength of 800 MPa and a nominal yield strength that is 80% of that nominal tensile strength, so 640 MPa.

What size bolt has a 17mm head?

Metric Bolt Head/Wrench Size

Bolt Diameter (mm) Head/Wrench Size (mm)
8 13 13
10 16 17
12 18 19

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).

What is M6 screw?

M6 refers to a metric 6 mm screw. The outside diameter of the threads is 6 mm. The standard metric rack screw is actually an M6 x 0.1 mm. The number 0.1 mm refers to 0.1 threads per millimeter. You can identify an M6 screw by measuring the diameter at slightly more than 7/32″ (0.228″).

What is meant by the grade of a threaded fastener?

A threaded fastener’s grade indicates its tensile strength and hardness. The higher the clamping load required, the higher the grade you’ll need.