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
SSHNNC025 1/4 UNC ST/ST HEX FULLNUT
65 In Stock for despatch
£21.00 (exc VAT) per HUND
£25.20 (inc VAT)
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SSHNNC031 5/16UNC ST/ST HEX FULLNUT
168 In Stock for despatch
£18.40 (exc VAT) per HUND
£22.08 (inc VAT)
-
+
SSHNNC037 3/8 UNC ST/ST HEX FULLNUT
48 In Stock for despatch
£45.20 (exc VAT) per HUND
£54.24 (inc VAT)
-
+
SSHNNC044 7/16UNC ST/ST HEX FULLNUT
Out of Stock
£99.00 (exc VAT) per HUND
£118.80 (inc VAT)
-
+
SSHNNC050 1/2 UNC ST/ST HEX FULLNUT
368 In Stock for despatch
£90.00 (exc VAT) per HUND
£108.00 (inc VAT)
-
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SSHNNC056 9/16" ST/ST HEX NUT DIN 934
Out of Stock
£3.00 (exc VAT) per HUND
£3.60 (inc VAT)
-
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SSHNNC06 6-32UNC ST/ST HEX FULLNUT
400 In Stock for despatch
£8.40 (exc VAT) per HUND
£10.08 (inc VAT)
-
+
SSHNNC062 5/8 UNC ST/ST HEX FULLNUT
2 In Stock for despatch
£280.00 (exc VAT) per HUND
£336.00 (inc VAT)
-
+
SSHNNC075 3/4 UNC ST/ST HEX FULLNUT
Out of Stock
£220.00 (exc VAT) per HUND
£264.00 (inc VAT)
-
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SSHNNC08 8-32UNC ST/ST HEX FULLNUT
145 In Stock for despatch
£11.00 (exc VAT) per HUND
£13.20 (inc VAT)
-
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SSHNNC087 7/8 UNC ST/ST HEX FULLNUT
6 In Stock for despatch
£700.00 (exc VAT) per HUND
£840.00 (inc VAT)
-
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SSHNNC10 10-24 UNC ST/ST HEX FULL NUT
273 In Stock for despatch
£14.00 (exc VAT) per HUND
£16.80 (inc VAT)
-
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SSHNNC100 1" UNC ST/ST HEX FULLNUT
8 In Stock for despatch
£838.50 (exc VAT) per HUND
£1,006.20 (inc VAT)
-
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SSHNNC125 1.1/4" UNC ST/ST HEX FULL NUT
Out of Stock
£2,000.00 (exc VAT) per HUND
£2,400.00 (inc VAT)
-
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SSHNNC150 1.1/2UNC ST/ST HEX FULL NUT
Out of Stock
£2,100.00 (exc VAT) per HUND
£2,520.00 (inc VAT)
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