Buy Metric Bolts ✦ Top-Rated & Proven

The nominal width of the threaded shaft in millimeters.

Unlike imperial bolts that use slashes, metric bolts have numbers stamped on the head to indicate strength:

Buying metric bolts can be confusing if you don't know the specific measurements and strength grades required for your project. buy metric bolts

Medium-carbon steel; the standard "workhorse" for automotive and general machinery.

Metric bolts are identified by a standard callout format (e.g., ), which breaks down as follows: M (Metric): Confirms the bolt uses the metric system. The nominal width of the threaded shaft in millimeters

High-strength; used in structural engineering and heavy-duty vehicle components.

The distance between thread peaks in millimeters. Coarse threads are standard for general use, while fine threads (smaller numbers) offer better vibration resistance. Metric bolts are identified by a standard callout format (e

The highest standard strength for extreme stress applications like racing engines or industrial presses. 3. Popular Types and Materials Go to product viewer dialog for this item.