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|Machine Screw - Countersunk, Hex Socket - IMPERIAL THREAD|
Stainless Steel Machine Screws - Countersunk Head, Hexagon Socket with Imperial UNC & UNF Threads Countersunk Stainless Steel Machine Screws are fully threaded with Hexagon Socket, similar to DIN 7991
Most of our stock is in A2 / 304, with a few items in A4 /316 Stainless Steel.
There are a variety of different standards for Imperial threaded items. The most commonly availabe are based on the American Unified Thread Standard (UTS). There are both Coarse (UNC) and Fine (UNF) thread types available, with UNC the most comonly used.
When specifying the diameter of a UNC or UNF Bolt, it is common practice to specify the threads per inch (tpi) after the diameter. For example 1/4-20 x 1" has a 1/4"diameter with 20 tpi (UNC) and is 1" long.
You may download a table on Metric and Imperial Threads here:
Imperial - Metric Conversion and Thread Tables PDF
We hold only a limited stock of Imperial Threaded UNC & UNF items. Please contact us, if you require large quantities or other sizes.
FREE delivery on orders to Ireland and UK Mainland over £50.00 / 50.00 *
10% discount on orders over £99 / 110 net.
All prices are exclusive of VAT.
| No:6-32 UNC Countersunk Hex Socket Machine Screws |
| No:8-32 UNC Countersunk Hex Socket Machine Screws |
| No:10-24 UNC Countersunk Hex Socket Machine Screws |
| No:10-32 UNF Countersunk Hex Socket Machine Screws |
| 1/4"-20 UNC Countersunk Hex Socket Machine Screws |
| 5/16"-18 UNC Countersunk Hex Socket Machine Screws |
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* See Delivery Information - Term & Conditions Apply.