A standard M8 bolt is a type of metric bolt that is measured using the ISO metric system. This bolt has a diameter of 8 millimeters and a pitch of 1.25 millimeters. The length of an M8 bolt depends on its intended use, and can range from a few millimeters to several hundred millimeters.
- The head of an M8 bolt is typically a hexagon shape, which allows for easy tightening with a wrench or socket.
- The thread length of an M8 bolt varies, but is usually at least as long as the bolt’s diameter to ensure proper engagement with the threaded hole or nut.
- The thread pitch of an M8 bolt is 1.25 millimeters, meaning that for each complete turn of the bolt, it moves 1.25 millimeters in the axial direction.
- The metric thread designation for an M8 bolt is “M8x1.25”, which indicates its diameter and pitch.
- M8 bolts can be made from a variety of materials, including steel, stainless steel, brass, and titanium.
M8 bolts are commonly used in a range of applications, such as automotive and mechanical engineering, construction, and manufacturing. They are used to fasten two or more parts together, and are often paired with nuts or other threaded components to create a secure joint. M8 bolts can also be used with washers to distribute the load and prevent damage to the surface of the parts being fastened.
M8 Bolt Dimensions & Sizes
| Type | M8 Bolt |
| Common sizes | 8mm x 20mm, 8mm x 25mm, 8mm x 30mm, 8mm x 35mm, 8mm x 40mm, 8mm x 45mm, 8mm x 50mm |
| Dimensions | Diameter: 8mm Length: varies depending on size |
Guide to M8 Bolt: References and Resources
Here are some references to dig deeper about M8 bolt dimensions:
- McMaster-Carr – provides detailed information about M8 bolts, including thread pitch, length, and head diameter.
- Engineering Toolbox – offers comprehensive tables containing the dimensions of various M8 bolts, with and without washers.
- Fastenal – presents an in-depth guide to fastener materials, including M8 bolts, discussing factors affecting bolt strength and corrosion resistance, among other topics.
- Bolt Depot – features an educational page on metric threads, including M8 bolts. It explains thread pitch, diameter, and class fit, and includes a table of head, shank, and thread dimensions.
If you’d like to delve deeper into the topic of Dimensions, we encourage you to utilize our search feature in KOBI International or visit the official websites and references for accessing relevant materials.
