What is the diameter of an M8 bolt?
Diameter: the width of the bolt shank, the bolt head is not included. The defined diameter of metric bolts is actually slightly larger than the actual diameter. So an M8 bolt would have a diameter that’s slightly under 8mm. 2.
What does 8 8 mean on a bolt?
Also know, what does 8.8 mean on a bolt? If you have ever looked a metric hex bolt you might notice the markings 8.8, 10.9 or 12.9 this does not mean grade 8,10 or 12. The grade 8.8 refers to the tensile strength which is generally 116,000 psi, grade 10.9 is generally 150,000 and grade 12.9 is generally 175,000 psi.
What is the standard size of a bolt?
In the metric world (a.k.a. ISO) the most common bolts are marked with an 8.8, 10.9, or 12.9. If there are no head markings at all, they are most likely comparable to the SAE grade 2. The 8.8 is comparable to the SAE Grade 5.
What are the dimensions of a hex bolt?
Bolt Dimensions. Dimensions of hex bolts, heavy hex bolts, square bolts, hex caps screws and heavy hex structural bolts. Notes: Body Diameter - There may be a reasonable swell or fin under the head or die seam on the body not to exceed the basic bolt diameter by the following: 0.030" for sizes up to 1/2". 0.050" for sizes 5/8" and 3/4".
What does 8.8 on a bolt mean?
The second number indicates one-tenth of the percentage of the part's nominal yield strength compared to the part's nominal tensile strength. 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.Mar 28, 2022
What size is a Ty 8.8 bolt?
Bolt Grade Markings and Strength ChartGrade and MaterialNominal Size Range (inches)Class 8.8 Medium carbon steel, quenched and temperedAll sizes below 16mm16mm - 72mmClass 10.9 Alloy steel, quenched and tempered5mm - 100mm19 more rows
What grade is a metric 8.8 bolt?
Class 8.8 is similar to grade 5. Zinc plated for moderate corrosion resistance. A tempered medium carbon steel. Class 10.9 is stronger than class 8.8.
What is the difference between 8.8 and 10.9 bolts?
8.8 grade bolts are 800MPa ultimate tensile strength (the first 8) and have a proof strength of 80% of UTS, that is, 640MPa (the second 8). 10.9 grade bolts are 1000MPa UTS (the 10) and a proof strength of 90% of UTS, 900MPa (the 9).Mar 4, 2013
Is 8.8 bolt high tensile?
High tensile steel bolts Grade 8.8 high tensile steel is often referred to as the structural grade for bolts. It is the most common form of high tensile material and is usually stocked in plain finish or zinc. It can be plated in many other coatings.
What size is an M8 bolt?
SizeClearance HoleTapping Drill (fine pitch)M66.55.25 mmM897 mmM10119.0 or 8.75 mmM121410.5 mm5 more rows
How strong is a metric 8.8 bolt?
Metric steel bolts, screws and studs - proof and tensile strength.Property ClassSize Range (mm)Minimum Tensile Strength (106 Pa)8.8M1.6 - M368309.8M1.6 - M1690010.9M5 - M36104012.9M1.6 - M3612203 more rows
How can you tell if a bolt is metric?
Telling the difference between a metric and imperial bolt is easy. If the bolt has lines on the head its standard or imperial. If the bolt has numbers on the head then its metric.
What is the strongest bolt?
Grade 9 structural bolts, also known as grade 9 hex cap screws, are one the strongest structural bolts that can be used today. While the typical grade 8 bolt has a tensile strength of 150,000 PSI, a grade 9 bolt has a tensile strength of 180,000PSI.Jun 5, 2020
What does Grade 8 mean for a bolt?
Grade 8 – Grade 8 bolts are made from medium carbon alloy steel. The bolts of this grade feature 6 radial lines. The nominal size of the grade 8 bolts can be from 1/4″ to 1 1/2″. The minimum yield strength of this grade bolt is 130,000 psi.
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What is the diameter of a M8 bolt?
The defined diameter of metric bolts is actually slightly larger than the actual diameter. So an M8 bolt would have a diameter that’s slightly under 8mm. 2.
What is the metric bolt size?
Metric bolts are referenced using “M” sizes, such as the M8 bolt size. 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. Sometimes, the pitch is omitted in the abbreviated format, such as M8-20, this means the bolt has a coarse thread. The bolt dimension can also be expressed in imperial units.
Why are hex bolts used?
Hex bolts can be used for infrastructure that requires a strong fastener with high tensile strength properties, they can also be used in tight spaces with limited access because tools can access them from all angles, or fastening wood, steel, or other materials in bridges, buildings, and more construction projects.
What are hexagonal bolts made of?
Steel is one of the most common materials of bolts, but hex bolts may also be made with aluminum, copper, brass, titanium, or even plastic.
What is a bolt?
Bolts are a type of essential fastener that often assembled with nuts. Using a bolt with the right sizes is vital for jobs in various machinery and equipment. In this article, we’ll go through a complete guide of bolts, which involves bolts definition, types, dimensions explain, and the standard bolt sizes chart in metric and imperial.
What is an anchor bolt?
Anchor bolt. With a threaded part in one end and non-threaded in another end, which can be made in L shape, Pin type, Wedge type, or other forms, often work with steel plates or stiffeners to connect structural and non-structural elements to the concrete, transfer tension forces and shear forces. Anchor bolts come in different types based on ...
What is an elevator bolt?
Elevator bolt. Similar to the carriage bolt but elevator bolt with a thin flat or countersunk head and a square undercut, used in conveyor system setups. The head diameter of elevator bolts is larger than other types, which can prevent the bolt from going through soft conveyor material.
What is a grade 8.8 bolt?
Grade 8.8 Bolts belong to the DIN 933 grade 8.8 standard. This is a structural grade for bolts. This is a medium carbon steel bolt specification. These bolts are heat treated by quenched and tempered methods. Navstar Steel is a leading manufacturer and supplier of the Grade 8.8 Bolts in different types.
What is a class 8.8 stud?
But the medium carbon content makes the Class 8.8 Nuts to have high ductility and workability. The High Tensile Class 8.8 Studs are metallic rods with threads on both ends.
How do you determine screw size?
When looking into and determining screw size, there are two things you need to understand – the length and the thread count. The latter is also commonly referred to as threads per inch (TPI) or thread pitch. We use the TPI to determine the thread’s fineness. The number will also tell if a screw can thread through a bolt.
How do I identify screw size?
Identifying sizes can be tricky if you don’t know how to read them. They are represented in an alphanumeric code, which is difficult to understand if you are not familiar with it. Codes such as “1/8-10 x 4/6”, “M5-0.4 x 15”, and “4-30 x 0.10” may seem overwhelming and meaningless at the same time, but it is the most vital information.
What do the numbers mean on screw sizes?
If you often do DIY, one of the popular items you are using is screws. It comes in several sizes, which you can find in the packaging. Finding the correct size can be a daunting task if you don’t know the imperial or metric system. A conversion table would be handy if you often convert between these two systems.
Metric System
The metric system was based on the meter, a system of measurement whose origin was in France in the 1970s. When taking the length of a screw, we use meters.
Standard System
The standard system, otherwise known as the imperial system, was introduced in the British Weights and Measures Act 1824. It evolved through a series of amendments in the said act. For some time, the imperial system had been the standard measurement system. However, by the late 20th century, several countries have adopted the metric system.
Buying Guide
Now that we have discussed some of the basics, it is time to guide you through what you need to know. Finding the right type and specifications will hold materials together nicely.
Types
Depending on the application, they come in different forms and sizes. Here are some of the most common ones.
