METRIC THREAD

METRIC THREAD

Metric threads, the most widely used general-purpose screw threads globally, are defined by the ISO Metric Screw Thread standard (ISO 68). They are characterized by a symmetric V-shape profile with a 60° flank angle. 

Designation System

A metric thread is designated by the letter M followed by its nominal major diameter in millimetres. If the pitch is not the standard "coarse" pitch, it is specified after the diameter, separated by an "x" (or a dash). 

  • M8: Refers to a coarse thread with a nominal diameter of 8 mm (and an implied standard pitch of 1.25 mm).
  • M8x1: Refers to a fine thread with a diameter of 8 mm and a pitch of 1 mm. 

Coarse vs. Fine Threads

Metric threads are available in two primary pitch types, which are not related to manufacturing quality. 

  • Coarse Threads:
    • Feature a larger pitch (distance between threads).
    • Are the more common and general-purpose type, widely available and suitable for most applications.
    • Allow for quick assembly and disassembly.
  • Fine Threads:
    • Have a smaller pitch, meaning more threads per unit of length.
    • Offer enhanced strength and better resistance to loosening from vibration.
    • Require a longer thread engagement and are often found in automotive and aerospace applications. 

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Code Description Price Quantity
HNM04FP M4 HEX SERRATED FLANGE NUTS ZINC PLATED
980 In Stock for despatch
£4.80 (exc VAT) per HUND
£5.76 (inc VAT)
-
+
HNM05FP M5 HEX SERRATED FLANGE NUTS ZINC PLATED
6682 In Stock for despatch
£3.97 (exc VAT) per HUND
£4.76 (inc VAT)
-
+
HNM06F M6 HEX SERRATED FLANGE NUTS
Out of Stock
£4.52 (exc VAT) per HUND
£5.42 (inc VAT)
-
+
HNM08F M8 HEX FLANGE NUTS ZINC PLATED
1541 In Stock for despatch
£8.50 (exc VAT) per HUND
£10.20 (inc VAT)
-
+
HNM08FS M8 HEX FLANGE NUTS SERRATED ZINC
1496 In Stock for despatch
£13.30 (exc VAT) per HUN
£15.96 (inc VAT)
-
+
HNM10F M10 HEX FLANGE NUT
648 In Stock for despatch
£28.67 (exc VAT) per HUND
£34.40 (inc VAT)
-
+
HNM10FP M10 HEX SERRATED FLANGE NUTS ZINC PLATED
1021 In Stock for despatch
£14.10 (exc VAT) per HUND
£16.92 (inc VAT)
-
+
HNM12FP M12 HEX SERRATED FLANGE NUTS ZINC PLATED
491 In Stock for despatch
£22.70 (exc VAT) per HUN
£27.24 (inc VAT)
-
+
HNM14FP M14 HEX SERRATED FLANGE NUTS ZINC PLATED
246 In Stock for despatch
£52.90 (exc VAT) per HUN
£63.48 (inc VAT)
-
+
HNM16FP M16 HEX SERRATED FLANGE NUTS ZINC PLATED
37 In Stock for despatch
£110.80 (exc VAT) per HUND
£132.96 (inc VAT)
-
+
HNM20FG M20 GRD 8 DIN 6923 HEXAGON FLANGED NUT GALVANISED.
8 In Stock for despatch
£579.00 (exc VAT) per HUND
£694.80 (inc VAT)
-
+
HNM20FP M20 HEX FLANGE NUTS GR 8 ZINC PL DIN6923 (11590)
44 In Stock for despatch
£380.20 (exc VAT) per HUND
£456.24 (inc VAT)
-
+
HNM24FG M24 HEX FLANGE NUT GALV
6 In Stock for despatch
£7,500.00 (exc VAT) per HUND
£9,000.00 (inc VAT)
-
+
HNM24FP M24 HEX FLANGE NUTS ZINC PLATED (11590)
Out of Stock
£995.90 (exc VAT) per HUND
£1,195.08 (inc VAT)
-
+