Question: Should I Buy SAE Or Metric?

What is a 12mm socket in standard?


7/16 Inch.

0.43307 Inches.


Just short of 1/2 Inch..

What are the most common metric wrench sizes?

Wrench Size Chart for BoltsBolt DiameterWrench Size (Standard)Wrench Size (Metric)5/16″1/2″13mm3/8″9/16″15mm7/16″5/8″16mm1/2″3/4″19mm20 more rows•May 29, 2020

Why do American cars use metric?

Most new American cars use exclusively metric fasteners. This is due to the increasing penetration of American cars in foreign markets, the increasing acceptance of metric fasteners by engineers, and the large quantity of components sourced overseas.

When did American cars go metric?

In 1975, Congress passed the Metric Conversion Act, which declared metric as the preferred system of the United States, and the U.S. Metric Board was created to implement the conversion.

Is SAE and Imperial the same?

Imperial is a complete measurement system, not a fastener spec. … SAE (Society of Automotove Engineers) tool and fastener measurements are imperial, and are referred to as SAE to differentiate those sizes from nominally metric sizes.

What is the difference between SAE and metric?

While the majority of bolt-type fasteners used in the United States conform to one or the other measurement scale, the difference between SAE and metric fasteners (and their corresponding sockets) is as profound as the difference between yards and meters: They are almost the same, but not quite.

What does SAE mean in sockets?

Society of Automotive EngineersSociety of Automotive Engineers (SAE) sockets are designed to help you work on American-made vehicles. Socket sizes are based on imperial system inches and fractions.

What is the difference between metric and standard?

For standard bolts, head size is measured in inches or fractions of inches; however, metric bolt head sizes are measured in millimeters, which can cause confusion if engineers attempt to apply metric bolts to standard systems, and vice versa.

How do I know if my bolts are standard or metric?

The metric screw thread is identified by the capital letter M, followed by the nominal diameter. Metric threads are measured by the distance between two adjacent threads in millimeters (pitch). Threads on a standard (inch based) fastener are measured by counting the number of threads per inch.

Which is better metric or SAE?

The metric measurement is more accurate than friction on an inch. … For more than 30 years, imported cars used metric measurement in them. ​SAE. The root of the SAE measurement comes from English or Imperial.

What are the SAE socket sizes?

Course Tool ListSix Point Standard Sockets (5/32, 3/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 7/16, 1/2)Six Point Metric Sockets (4, 5, 6, 7, 8, 9, 10, 11, 12, 13)Drive Tools (1/4”):

Do cars use metric or standard?

As with all wrenches, you have the choice between U.S., also known as standard, or metric sizes. American cars are assembled with nuts and bolts that use standard measurements while foreign cars almost exclusively use metric measurements.

How do you tell if a bolt is SAE or metric?

Metric and SAE fasteners are measured differently and with different vocabulary. SAE nuts, bolts and screws are measured by their thread count, or TPI (threads per inch) and their length. Metric fasteners are measured by length and pitch, or the distance between threads.

What does SAE stand for in bolts?

Society of Automotive EngineeringThese terms and quantities are arbitrary, but are indeed engineering standards established by the SAE (Society of Automotive Engineering). It is just one of many standards they have established and maintain. When it comes to METRIC hardware, there can be up to four different thread pitches for a given size of fastener.

Is 3/8 and 10mm the same?

10mm = just over 3/8 inch. 11mm = almost 7/16 inch.

What does SAE stand for?

The letters SAE stand for the Society of Automotive Engineering. The SAE was founded in 1905 by Andrew Ricker and Henry Ford. At the outset, its sole aim was to provide an umbrella organization for the scattered automotive engineers who usually worked alone in various parts of the country.

What are metric sizes?

The size of a metric screw or bolt is specified as diameter, pitch and length, in millimeters (millimeters is abbreviated “mm”). For nuts, size will appear as diameter and pitch. … In the example above, a pitch of 1.0 means that from one thread to the next thread, the distance is 1.0 millimeter.

Do I need SAE sockets?

SAE nuts and bolts are used in construction a lot too, so if you ever want to build a deck or fix up a bathroom or kitchen or put in a finished basement you’ll need SAE. And they can be had fairly inexpensively if you get used. I have USA made Craftsman sockets that I got on Ebay.

Is Toyota SAE or metric?

Toyotas are JIS metric as opposed to DIN (German) or American metric, (ISO).

Who uses SAE?

SAE is commonly used in North America to indicate United States customary units (USCS or USC) measuring systems in automotive and construction tools. SAE is used as a tool marking to indicate that they are not metric (SI) based tools, as the two systems are incompatible.