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.

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Code Description Price Quantity
NNNC025 1/4 UNC TYPE P NYLON INSERT NUT ZINC
94 In Stock for despatch
£19.60 (exc VAT) per HUND
£23.52 (inc VAT)
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NNNC031 5/16 UNC TYPE P NYLON INSERT NUT ZINC
1106 In Stock for despatch
£15.30 (exc VAT) per HUND
£18.36 (inc VAT)
-
+
NNNC037 3/8 UNC TYPE P NYLON INSERT NUT ZINC
160 In Stock for despatch
£17.70 (exc VAT) per HUND
£21.24 (inc VAT)
-
+
NNNC044 7/16 UNC TYPE P NYLON INSERT NUT ZINC
1056 In Stock for despatch
£18.40 (exc VAT) per HUND
£22.08 (inc VAT)
-
+
NNNC050 1/2 UNC TYPE P NYLON INSERT NUT ZINC
340 In Stock for despatch
£41.00 (exc VAT) per HUND
£49.20 (inc VAT)
-
+
NNNC056 9/16 UNC NYLON INSERT NUT ZINC
34 In Stock for despatch
Price Unavailable
-
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NNNC062 5/8 UNC TYPE P NYLON INSERT NUT ZINC
7070 In Stock for despatch
£45.18 (exc VAT) per HUND
£54.22 (inc VAT)
-
+
NNNC075 3/4 UNC TYPE P NYLON INSERT NUT ZINC
77 In Stock for despatch
£80.40 (exc VAT) per HUND
£96.48 (inc VAT)
-
+
NNNC087 7/8 UNC TYPE P NYLON INSERT NUT ZINC
23 In Stock for despatch
£127.70 (exc VAT) per HUND
£153.24 (inc VAT)
-
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NNNC10 10-24 UNC NYLON INSERT NUT ZINC
1499 In Stock for despatch
Price Unavailable
-
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NNNC100 1" UNC TYPE P NYLON INSERT NUT ZINC
98 In Stock for despatch
£261.00 (exc VAT) per HUND
£313.20 (inc VAT)
-
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NNNC100-SAE8P 1" UNC NE SAE8 NYLON INSERT NUT ZINC
Out of Stock
£750.00 (exc VAT) per HUND
£900.00 (inc VAT)
-
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NNNC112 1.1/8 UNC NYLON INSERT NUT ZINC
29 In Stock for despatch
£574.10 (exc VAT) per HUND
£688.92 (inc VAT)
-
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NNNC125 1.1/4 UNC NYLON INSERT NUT ZINC
Out of Stock
£971.50 (exc VAT) per HUND
£1,165.80 (inc VAT)
-
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NNNC125-12 1.1/4" UNC NYLON INSERT NUT CLASS 12
Out of Stock
£139.00 (exc VAT) per EACH
£166.80 (inc VAT)
-
+
NNNC150 1.1/2 UNC NYLON INSERT NUT ZINC
10 In Stock for despatch
£1,118.40 (exc VAT) per HUND
£1,342.08 (inc VAT)
-
+
NNNC200 2" UNC NYLON INSERT NUT ZINC
Out of Stock
£5,333.30 (exc VAT) per HUND
£6,399.96 (inc VAT)
-
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NNNC4 4 -40 UNC NYLON INSERT NUT ZINC
100 In Stock for despatch
£6.00 (exc VAT) per HUND
£7.20 (inc VAT)
-
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