On this page you will find our range of No 2, No 3, No 4, No 5,No 6, No 8, No 10 and 1/4" UNC socket cap screws.
UNC and UNF threads are designated with a size ref followed by the threads per inch
i.e. 2-56 = No 2 size with 56 threads per inch
For more data on UNC, UNF and many other types of thread - please click here
To go to our UNF range, please click here.
Looking for 0-80? This is a UNF size and listed here
are stated in millimetres (imperial sizes have been converted to metric). If you
need a key, click on the symbol in the tables below and you will be taken to the
allen key and ball driver page.
Many other sizes are available, so if the size you need is not listed then please e mail us for a quotation via the fixings enquiry page.
To order, click on the 'Add to Order' button alongside the item of your choice. You can select the quantity on the order form (default is 1). To continue ordering other items, use the 'Back' button on your browser, or the continue shopping button on the order form - the order form will retain the information until you are ready to submit your order.
You can review and edit your order, or submit your order at any time by using the button at the bottom of each list.
UNC screws are primarily sized in inches, but metric equivalents are given (to 2 decimal places).
All prices include 20% VAT Click here for details
For UNC nuts - click here
For flat and spring washers - click here
We do not stock specific UNC washers, but the following metric equivalents can be used for general applications :-
No 2 UNC use M2 washers
No 4 UNC use M3 washers
No 6 UNC use M4 washers
No 8 UNC use M4 washers
This page was last modified on : January 24, 2021
Send mail to
questions or comments about this web site.