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"What Thread Size Do I Need?"

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We design and manufacture screws and fasteners for rack mount equipment.  Our patented quick release fasteners have been in worldwide use since 1991 and are used by such companies as Microsoft, Intel, Apple Computer, Google, Cisco, 3com, Nortel Networks, Northrup-Gruman, FBI, VeriSign, Quantum, National Institute of Health and many more.  


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100 Clip Nuts / 100 Rack Screws with Washers - $20.00
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What thread size is right for you?  The following are the most common and we offer them all:  

10-32  An American screw size.  Commonly used in all rack mount applications including music, video, broadcast, data and more.  90% of the screws and fasteners we sell are 10-32.  The "10" refers to the drill size for a tapped (threaded) hole.  The outside diameter of a 10-32 screw is 0.19", it is smaller than a 12-24 screw.  This thread has 32 threads per inch. 

12-24 
An American screw size still common for rack 
mounting equipment particularly in the US telecommunications industry.  It has 24 threads per inch. Again, the first number refers to the drill size required for a tapped (threaded) hole (a #12 drill is 0.189").  The outside diameter of a 12-24 screw is 0.2160 ".  It is larger than a 10-32 screw.  8% of the screws we sell here in the US are 12-24. 

M6  Metric thread size of 6 millimeters. Typical thread size for European rack applications.  Also used in Compaq racks and Euro racks sold here in the US.  Larger than both 10-32 and 12-24. 

If you are unsure of your thread size take one of your rack screws to the local hardware store.  Using a thread gauge they will be able tell you the exact screw size you have.


 

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