What are standard metric bolt sizes?
What are standard metric bolt sizes?
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Metric clearance and tapping drill hole sizes.
| Size | Clearance Hole mm | Tapping Drill (std Pitch) |
|---|---|---|
| M6 | 6.5 | 5.0 mm |
| M8 | 9 | 6.75 mm |
| M10 | 11 | 8.5 mm |
| M12 | 14 | 10.25 mm |
What is ISO bolt?
The ISO metric screw thread is the most commonly used type of general-purpose screw thread worldwide. They were one of the first international standards agreed when the International Organization for Standardization (ISO) was set up in 1947.
What size is a M10 bolt?
Metric Hex Bolt Dimensions
| NOMINAL SIZE (D) | BODY DIAMETER | ACROSS THE FLATS |
|---|---|---|
| m10 | 10.00 | 15.73 |
| m12 | 12.00 | 17.73 |
| m14 | 14.00 | 20.67 |
| m16 | 16.00 | 23.67 |
How can you tell if a bolt is metric or standard?
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 size is a M4 screw?
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 do metric screw sizes mean?
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 is an M4 bolt?
4mm x 20mm
M4 (4mm x 20mm) Pozi Countersunk Machine Screw (Bolt) – Stainless Steel (A2) (Pack of 20)
How are metric threads defined in ISO 68-1?
The design principles of ISO general-purpose metric screw threads (“M” series threads) are defined in international standard ISO 68-1. Each thread is characterized by its major diameter and its pitch. ISO metric threads consist of a symmetric V-shaped thread. In the plane of the thread axis, the flanks of the V have an angle of 60° to each other.
What are the design principles of ISO screw threads?
The design principles of ISO general-purpose metric screw threads (“M” series threads) are defined in international standard ISO 68-1. Each thread is characterized by its major diameter and its pitch. ISO metric threads consist of symmetric V-shaped thread. In the plane of the thread axis, the flanks of the V have an angle of 60° to each other.
What kind of thread dimensions are ISO 262?
ISO 262 specifies a shorter list of thread dimensions – a subset of ISO 261. Superfine pitch metric threads are occasionally used in automotive components, such as suspension struts, and are commonly used in the aviation manufacturing industry.
Which is thread pitch does a metric fastener use?
Metric Fasteners use a thread Pitch. In general, smaller fasteners have finer threads, so the thread count is higher. Metric fasteners are specified with a thread pitch, instead of a thread count. The thread pitch is the distance between threads expressed in millimeters.