UNC THREAD

Descriptions

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.

Specifications

No detailed specifications are available for this product.

Downloads

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Code	Description	Price	Quantity
SSSCNC025050A4	1/4 UNC X 1/2 ST/ST SKT CAPSCREW A4/316 50 In Stock for despatch	£455.60 (exc VAT) per HUND £546.72 (inc VAT)	- +
SSSCNC025075A4	1/4 UNC X 3/4 ST/ST SKT CAPSCREW A4 Out of Stock	£46.00 (exc VAT) per HUND £55.20 (inc VAT)	- +
SSSCNC025100A4	1/4 UNC X 1" ST/ST SKT CAPSCREW A4 Out of Stock	£49.00 (exc VAT) per HUND £58.80 (inc VAT)	- +
SSSCNC025150A4	1/4 UNC X 1.1/2 ST/ST SKT CAPSCREW A4/316 10 In Stock for despatch	£73.40 (exc VAT) per HUND £88.08 (inc VAT)	- +
SSSCNC025175A4	1/4"UNC X 1.3/4" A4 STAINLESS SOCKET HEAD CAPSCREW Out of Stock	£2,724.00 (exc VAT) per HUND £3,268.80 (inc VAT)	- +
SSSCNC025200A4	1/4 UNC X 2" ST/ST SKT CAPSCREW A4 Out of Stock	£1,080.00 (exc VAT) per HUND £1,296.00 (inc VAT)	- +
SSSCNC031050A4	5/16UNC X 1/2 ST/ST SKT CAPSCREW A4 Out of Stock	£106.00 (exc VAT) per HUND £127.20 (inc VAT)	- +
SSSCNC031062A4	5/16UNC X 5/8 ST/ST SKT CAPSCREW A4 175 In Stock for despatch	£60.00 (exc VAT) per HUND £72.00 (inc VAT)	- +
SSSCNC031075A4	5/16UNC X 3/4 ST/ST SKT CAPSCREW A4 Out of Stock	£211.00 (exc VAT) per HUND £253.20 (inc VAT)	- +
SSSCNC031100A4	5/16UNC X 1" ST/ST SKT CAPSCREW A4 Out of Stock	£299.50 (exc VAT) per HUND £359.40 (inc VAT)	- +
SSSCNC031125A4	5/16UNC X 1.1/4 ST/ST SKT CAPSCREW A4 20 In Stock for despatch	£76.00 (exc VAT) per HUND £91.20 (inc VAT)	- +
SSSCNC031150A4	5/16UNC X 1.1/2 ST/ST SKT CAPSCREW A4 60 In Stock for despatch	£69.00 (exc VAT) per HUND £82.80 (inc VAT)	- +
SSSCNC031200A4	5/16UNC X 2" ST/ST SKT CAPSCREW A4 1 In Stock for despatch	£302.00 (exc VAT) per HUND £362.40 (inc VAT)	- +
SSSCNC031250A4	5/16"UNC X 2.1/2" A4 ST/ST SOCKET HEAD CAPSCREW Out of Stock	£145.00 (exc VAT) per HUND £174.00 (inc VAT)	- +
SSSCNC037075A4	3/8 UNC X 3/4" ST/ST SOCKET CAPSCREWS A4 ST/ST Out of Stock	£412.10 (exc VAT) per HUND £494.52 (inc VAT)	- +
SSSCNC037100A4	3/8 UNC X 1" ST/ST SKT CAPSCREW A4 60 In Stock for despatch	£199.00 (exc VAT) per HUND £238.80 (inc VAT)	- +
SSSCNC037125A4	3/8 UNC X 1.1/4 ST/ST SKT CAPSCREW A4 12 In Stock for despatch	£135.00 (exc VAT) per HUND £162.00 (inc VAT)	- +
SSSCNC037150A4	3/8 UNC X 1.1/2" ST/ST SOCKET CAPSCREWS A4 Out of Stock	£465.80 (exc VAT) per HUND £558.96 (inc VAT)	- +
SSSCNC037200A4	3/8 UNC X 2" ST/ST SKT CAPSCREW A4 6 In Stock for despatch	£215.00 (exc VAT) per HUND £258.00 (inc VAT)	- +
SSSCNC037250A4	3/8UNC X 2.1/2" A4 SOCKET HEAD CAPSCREW Out of Stock	£650.00 (exc VAT) per HUND £780.00 (inc VAT)	- +
SSSCNC037300A4	3/8"UNC X 3" A4 SOCKET HEAD CAPSCREW 42 In Stock for despatch	£400.00 (exc VAT) per HUND £480.00 (inc VAT)	- +
SSSCNC044175A4	7/16UNC X 1.3/4 ST/ST SKT CAPSCREW A4 Out of Stock	£1,092.50 (exc VAT) per HUND £1,311.00 (inc VAT)	- +
SSSCNC050075A4	1/2"UNC X 3/4" A4 316 ST/STEEL SOCKET HEAD CAPSCREW Out of Stock	£168.00 (exc VAT) per HUND £201.60 (inc VAT)	- +
SSSCNC050125A4	1/2 UNC X 1.1/4 ST/ST SKT CAPSCREW A4 Out of Stock	£240.00 (exc VAT) per HUND £288.00 (inc VAT)	- +
SSSCNC050150A4	1/2 UNC X 1.1/2 ST/ST SKT CAPSCREW A4 10 In Stock for despatch	£612.70 (exc VAT) per HUND £735.24 (inc VAT)	- +
SSSCNC050200A4	1/2 UNC X 2" ST/ST SKT CAPSCREW A4 17 In Stock for despatch	£380.00 (exc VAT) per HUND £456.00 (inc VAT)	- +
SSSCNC050500-A480	1/2"UNC X 5" A4-80 STAINLESS STEEL SOCKET HEAD CAPSCREW Out of Stock	£8,950.00 (exc VAT) per HUND £10,740.00 (inc VAT)	- +
SSSCNC062150A4	5/8 UNC X 1.1/2 ST/ST SKT CAPSCREW A4 17 In Stock for despatch	£1,353.10 (exc VAT) per HUND £1,623.72 (inc VAT)	- +
SSSCNC062200A4	5/8 UNC X 2" ST/ST SKT CAPSCREW A4 2 In Stock for despatch	£1,500.00 (exc VAT) per HUND £1,800.00 (inc VAT)	- +
SSSCNC075200A4	3/4 UNC X 2" ST/ST SKT CAPSCREW A4 Out of Stock	£1,100.00 (exc VAT) per HUND £1,320.00 (inc VAT)	- +
SSSCNC10037-A4	No10UNC X 3/8 ST/ST SKT CAPSCREW A4 Out of Stock	£58.40 (exc VAT) per HUND £70.08 (inc VAT)	- +

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