UNC THREAD

UNC THREAD

UNC (Unified National Coarse) threads are the most common American imperial thread standard for general-purpose fasteners. Known for their robust, deep thread form, UNC threads provide strong, durable connections that are less prone to cross-threading and are easy to assemble and disassemble. 

Key Characteristics

  • Thread Angle: UNC threads use a 60° symmetrical V-profile flank angle, the same as modern metric ISO threads.
  • Designation: They are designated by their nominal major diameter (in inches) and the number of Threads Per Inch (TPI). For example, a 1/4"-20 UNC thread has a 1/4-inch diameter and 20 threads per inch.
  • Pitch: They have a larger pitch (fewer threads per inch) compared to the Unified National Fine (UNF) series.
  • Tolerances: The coarse pitch allows for greater tolerances in manufacturing and plating processes and makes them more tolerant of slightly dirty or damaged threads.

No detailed specifications are available for this product.

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Code Description Price Quantity
SSSCNC025037 1/4 UNC X 3/8 ST/ST SKT CAPSCREW A2/70
Out of Stock
£40.00 (exc VAT) per HUND
£48.00 (inc VAT) per HUND
-
+
SSSCNC025050 1/4 UNC X 1/2 ST/ST SKT CAPSCREW A2/70
142 In Stock for dispatch
£40.00 (exc VAT) per HUND
£48.00 (inc VAT) per HUND
-
+
SSSCNC025062 1/4 UNC X 5/8 ST/ST SKT CAPSCREW A2/70
Out of Stock
£60.00 (exc VAT) per HUND
£72.00 (inc VAT) per HUND
-
+
SSSCNC025075 1/4 UNC X 3/4 ST/ST SKT CAPSCREW A2/70
185 In Stock for dispatch
£53.90 (exc VAT) per HUND
£64.68 (inc VAT) per HUND
-
+
SSSCNC025087 1/4" UNC X 7/8" SOCKET CAPSCREWS A2
50 In Stock for dispatch
£80.00 (exc VAT) per HUN
£96.00 (inc VAT) per HUN
-
+
SSSCNC025100 1/4 UNC X 1" ST/ST SKT CAPSCREW A2/70
64 In Stock for dispatch
£75.90 (exc VAT) per HUND
£91.08 (inc VAT) per HUND
-
+
SSSCNC025125 1/4 UNC X 1.1/4 ST/ST SKT CAPSCREW A2/70
14 In Stock for dispatch
£52.00 (exc VAT) per HUND
£62.40 (inc VAT) per HUND
-
+
SSSCNC025150 1/4 UNC X 1.1/2 ST/ST SKT CAPSCREW A2/70
129 In Stock for dispatch
£98.00 (exc VAT) per HUND
£117.60 (inc VAT) per HUND
-
+
SSSCNC025175 1/4"UNC X 1.3/4" A2 SKT HEAD CAPSCREWS
40 In Stock for dispatch
£99.40 (exc VAT) per HUND
£119.28 (inc VAT) per HUND
-
+
SSSCNC025200 1/4 UNC X 2" ST/ST SKT CAPSCREW A2/70
38 In Stock for dispatch
£105.30 (exc VAT) per HUND
£126.36 (inc VAT) per HUND
-
+
SSSCNC025225 1/4 UNC X 2.1/4 ST/ST SKT CAPSCREW A2/70
46 In Stock for dispatch
£119.90 (exc VAT) per HUND
£143.88 (inc VAT) per HUND
-
+
SSSCNC025250 1/4 UNC X 2.1/2 ST/ST SKT CAPSCREW A2/70
135 In Stock for dispatch
£84.60 (exc VAT) per HUND
£101.52 (inc VAT) per HUND
-
+
SSSCNC025300 1/4 UNC X 3" ST/ST SKT CAPSCREW A2/70
50 In Stock for dispatch
£160.00 (exc VAT) per HUND
£192.00 (inc VAT) per HUND
-
+
SSSCNC025450 1/4 UNC X 4.1/2 ST/ST SKT CAPSCREW A2/70
Out of Stock
£418.00 (exc VAT) per HUND
£501.60 (inc VAT) per HUND
-
+
SSSCNC031050 5/16UNC X 1/2 ST/ST SKT CAPSCREW
40 In Stock for dispatch
£44.00 (exc VAT) per HUND
£52.80 (inc VAT) per HUND
-
+
SSSCNC031062 5/16UNC X 5/8 ST/ST SKT CAPSCREW A2/70
68 In Stock for dispatch
£65.00 (exc VAT) per HUND
£78.00 (inc VAT) per HUND
-
+
SSSCNC031075 5/16UNC X 3/4 ST/ST SKT CAPSCREW A2/70
6 In Stock for dispatch
£97.65 (exc VAT) per HUND
£117.18 (inc VAT) per HUND
-
+
SSSCNC031100 5/16UNC X 1" ST/ST SKT CAPSCREW A2/70
100 In Stock for dispatch
£60.00 (exc VAT) per HUND
£72.00 (inc VAT) per HUND
-
+
SSSCNC031125 5/16UNC X 1.1/4 ST/ST SKT CAPSCREW
Out of Stock
£883.20 (exc VAT) per HUND
£1,059.84 (inc VAT) per HUND
-
+
SSSCNC031200 5/16UNC X 2" ST/ST SKT CAPSCREW A2/70
8 In Stock for dispatch
£220.00 (exc VAT) per HUND
£264.00 (inc VAT) per HUND
-
+
SSSCNC031250 5/16UNC X 2.1/2 ST/ST SKT CAPSCREW A2/70
16 In Stock for dispatch
£200.00 (exc VAT) per HUND
£240.00 (inc VAT) per HUND
-
+
SSSCNC031300 5/16UNC X 3" ST/ST SKT CAPSCREW A2/70
Out of Stock
£370.30 (exc VAT) per HUND
£444.36 (inc VAT) per HUND
-
+
SSSCNC037075 3/8 UNC X 3/4 ST/ST SKT CAPSCREW A2/70
1 In Stock for dispatch
£133.10 (exc VAT) per HUND
£159.72 (inc VAT) per HUND
-
+
SSSCNC037100 3/8 UNC X 1" ST/ST SKT CAPSCREW A2/70
15 In Stock for dispatch
£183.70 (exc VAT) per HUND
£220.44 (inc VAT) per HUND
-
+
SSSCNC037125 3/8 UNC X 1.1/4 ST/ST SKT CAPSCREW A2/70
24 In Stock for dispatch
£152.00 (exc VAT) per HUND
£182.40 (inc VAT) per HUND
-
+
SSSCNC037150 3/8 UNC X 1.1/2 ST/ST SKT CAPSCREW A2/70
88 In Stock for dispatch
£200.00 (exc VAT) per HUND
£240.00 (inc VAT) per HUND
-
+
SSSCNC037175 3/8 UNC X 1.3/4 ST/ST SKT CAPSCREW A2/70
Out of Stock
£280.70 (exc VAT) per HUND
£336.84 (inc VAT) per HUND
-
+
SSSCNC037200 3/8 UNC X 2" ST/ST SKT CAPSCREW A2/70
23 In Stock for dispatch
Price Unavailable
-
+
SSSCNC037250 3/8" UNC X 2.1/2" ST/ST SKT CAPSCREW A2/70
Out of Stock
£511.40 (exc VAT) per HUND
£613.68 (inc VAT) per HUND
-
+
SSSCNC044125 7/16UNC X 1.1/4 ST/ST SKT CAPSCREW A2/70
Out of Stock
£213.00 (exc VAT) per HUND
£255.60 (inc VAT) per HUND
-
+
SSSCNC044150 7/16UNC X 1.1/2 ST/ST SKT CAPSCREW A2/70
Out of Stock
£450.00 (exc VAT) per HUND
£540.00 (inc VAT) per HUND
-
+
SSSCNC044175 7/16UNC X 1.3/4 ST/ST SKT CAPSCREW A2/70
8 In Stock for dispatch
£876.60 (exc VAT) per HUND
£1,051.92 (inc VAT) per HUND
-
+
SSSCNC044200 7/16UNC X 2" ST/ST SKT CAPSCREW A2/70
1 In Stock for dispatch
£460.07 (exc VAT) per HUND
£552.08 (inc VAT) per HUND
-
+
SSSCNC050100 1/2 UNC X 1" ST/ST SKT CAPSCREW A2/70
Out of Stock
£295.00 (exc VAT) per HUND
£354.00 (inc VAT) per HUND
-
+
SSSCNC050125 1/2 UNC X 1.1/4 ST/ST SKT CAPSCREW A2/70
23 In Stock for dispatch
£400.00 (exc VAT) per HUND
£480.00 (inc VAT) per HUND
-
+
SSSCNC050150 1/2 UNC X 1.1/2 ST/ST SKT CAPSCREW A2/70
10 In Stock for dispatch
£546.10 (exc VAT) per HUND
£655.32 (inc VAT) per HUND
-
+
SSSCNC050175 1/2 UNC X 1.3/4 ST/ST SKT CAPSCREW A2/70
50 In Stock for dispatch
£600.00 (exc VAT) per HUND
£720.00 (inc VAT) per HUND
-
+
SSSCNC050200 1/2 UNC X 2" ST/ST SKT CAPSCREW A2/70
21 In Stock for dispatch
£367.00 (exc VAT) per HUND
£440.40 (inc VAT) per HUND
-
+
SSSCNC050250 1/2 UNC X 2.1/2 ST/ST SKT CAPSCREW A2/70
51 In Stock for dispatch
£568.03 (exc VAT) per HUND
£681.64 (inc VAT) per HUND
-
+
SSSCNC050300 1/2 UNC X 3" ST/ST SKT CAPSCREW A2/70
Out of Stock
£713.30 (exc VAT) per HUND
£855.96 (inc VAT) per HUND
-
+
SSSCNC050400 1/2" UNC X 4" ST/ST SKT CAPSCREW A2/70
Out of Stock
£1,466.60 (exc VAT) per HUND
£1,759.92 (inc VAT) per HUND
-
+
SSSCNC06075 No6 UNC X 3/4 ST/ST SKT CAPSCREW A2/70
Out of Stock
Price Unavailable
-
+
SSSCNC062125 5/8 UNC X 1.1/4 ST/ST SKT CAPSCREW A2/70
Out of Stock
£400.00 (exc VAT) per HUND
£480.00 (inc VAT) per HUND
-
+
SSSCNC062150 5/8"UNC X 1.1/2" A2 STAINLESS SOCKET HEAD CAPSCREW
Out of Stock
£480.00 (exc VAT) per HUND
£576.00 (inc VAT) per HUND
-
+
SSSCNC062200 5/8 UNC X 2" ST/ST SKT CAPSCREW A2/70
Out of Stock
£1,000.00 (exc VAT) per HUND
£1,200.00 (inc VAT) per HUND
-
+
SSSCNC062250 5/8 UNC X 2.1/2 ST/ST SKT CAPSCREW A2/70
Out of Stock
£600.00 (exc VAT) per HUND
£720.00 (inc VAT) per HUND
-
+
SSSCNC062300 5/8 UNC X 3" ST/ST SKT CAPSCREW A2/70
Out of Stock
£850.00 (exc VAT) per HUND
£1,020.00 (inc VAT) per HUND
-
+
SSSCNC08050 No8 UNC X 1/2 ST/ST SKT CAPSCREW A2/70
278 In Stock for dispatch
£24.61 (exc VAT) per HUND
£29.53 (inc VAT) per HUND
-
+
SSSCNC08062 No8 UNC X 5/8 ST/ST SKT CAPSCREW A2/70
50 In Stock for dispatch
£40.50 (exc VAT) per HUND
£48.60 (inc VAT) per HUND
-
+
SSSCNC087250 7/8 UNC X 2.1/2 ST/ST SKT CAPSCREW A2/70
Out of Stock
Price Unavailable
-
+
SSSCNC087300 7/8 UNC X 3" ST/ST SKT CAPSCREW A2/70
Out of Stock
£3,749.50 (exc VAT) per HUND
£4,499.40 (inc VAT) per HUND
-
+
SSSCNC10025 No10UNC X 1/4 ST/ST SKT CAPSCREW A2/70
150 In Stock for dispatch
Price Unavailable
-
+
SSSCNC10050 No10UNC X 1/2 ST/ST SKT CAPSCREW A2/70
200 In Stock for dispatch
£24.50 (exc VAT) per HUND
£29.40 (inc VAT) per HUND
-
+
SSSCNC10075 No10UNC X 3/4 ST/ST SKT CAPSCREW A2/70
Out of Stock
Price Unavailable
-
+
SSSCNC10100 No10UNC X 1" ST/ST SKT CAPSCREW A2/70
Out of Stock
£41.00 (exc VAT) per HUND
£49.20 (inc VAT) per HUND
-
+
SSSCNC10150 No10UNC X 1.1/2"ST/ST SKT CAPSCREW A2/70
200 In Stock for dispatch
£55.50 (exc VAT) per HUND
£66.60 (inc VAT) per HUND
-
+
SSSCNC10275 No10UNC X 2.3/4 ST/ST SKT CAPSCREW A2/70
30 In Stock for dispatch
£3,740.00 (exc VAT) per HUND
£4,488.00 (inc VAT) per HUND
-
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