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2016/02/19
Hand Tool Design Guide

Socket Size Inch & Metric, Download Quick Convert Sheet Between SAE and Imperial Socket Sizes

How to Convert Between SAE and Imperial Socket Sizes? 

There are two different methods for measuring the hex sizes of sockets. The SAE (Society of Automotive Engineers) system uses inches, and the imperial or metric system uses millimeters.

At the hardware store, you may find yourself asking: “Why doesn’t this socket fit this nut? They appear to be very close in size!”


If you lack a clear understanding of socket sizing, it’s easy to choose the wrong tool. Without a tool of the correct size, you won’t be able to properly fix or lock the nut. How can you tell which one is the right size?


Many customers admit that they don’t know exactly how to convert between SAE (inches) and imperial or metric (millimeters) measurements. For example, what is the actual size difference between a 11/16" hex nut and a 17mm hex nut? Will both sizes fit a 17mm socket?

The conversion chart below shows the correlation between SAE (inches) and imperial (mm) measurements.

TienI_6PT_Metric&Inch_System


Tien-i: a hand tools Manufacturing Supplier has more than a decade of experience designing and manufacturing hand tools, impact sockets and OEM items to fulfill its customers’ specific demands. If you have any special design requirements, please get in touch with our sales team today.

 

The table below shows conversion from millimeters to inches and vice versa.
(Please note that these are approximate values, intended for making rough calculations)

Metric and SAE by Tien-i

 (Click above pic to download PDF)

 inchtometricbytien-i

(Click above pic to download PDF)

 

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Q&A

What is the popular size of chrome sockets?

Tien-I is a manufacoturer at professional designing tool kit and producing OEM/ODM products. 

Is the bit head magnetic?

Please provide the sample or the photo for us reference to see which bits you ask for.

What is the popular size of impact sockets?

What kind of tool kit do you want? And what’s the sales territory? Different countries have different popular sizes. Welcome to send us an email for further discussion. .

What is the popular size of chrome sockets?

What kind of tool kit do you want? And what’s the sales territory? Different countries have different popular sizes. Welcome to send us an email for further discussion.

What is the difference between impact socket and chrome socket? Why is CR-V material not suitable at producing impact sockets?

Tien-i's hand sockets are made of Cr-V steel (CR-V).

Compared with the raw material "CR-V" for hand sockets, the raw material for pneumatic sockets, CR-MO, has stronger toughness, i.e. stronger shock resistance. Suitable for use with air and electric guns. CR-V steel (CR-V) has higher hardness, but in the need for shock-resistant use environment will lead to reduced service life.

to know more about hand socket and impact socket

How to get the hard copy of Tien-I catalog?

How to inquiry the products which does not in the Tien-I’s catalog?

Please contact our sales team. It’s welcome to provide the relative drawing or sample and the product sales information. 

https://tien-i.com/contact

Please contact our sales team. It’s welcome to provide the relative drawing or sample and the product sales information.

How to get the sample? What is the sample cost?

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