METRIC THREAD

Descriptions

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.

Specifications

No detailed specifications are available for this product.

Downloads

There are no downloads for this product.

Code	Description	Price	Quantity
SMSM02004P*P	M2 X 4 POZI PAN MACHINE SCREW ZINC Out of Stock	£9.30 (exc VAT) per THOU £11.16 (inc VAT)	- +
SMSM02005P*P	M2 X 5 POZI PAN MACHINE SCREW ZINC Out of Stock	£135.20 (exc VAT) per THOU £162.24 (inc VAT)	- +
SMSM02006P*P	M2 X 6 POZI PAN MACHINE SCREW ZINC 1820 In Stock for despatch	£32.70 (exc VAT) per THOU £39.24 (inc VAT)	- +
SMSM02.5006P*P	M2.5 X 6 POZI PAN MACHINE SCREW ZINC 2900 In Stock for despatch	£22.18 (exc VAT) per THOU £26.62 (inc VAT)	- +
SMSM02.5008P*	M2.5 X 8 POZI PAN MACHINE SCREW ZINC Out of Stock	£31.30 (exc VAT) per THOU £37.56 (inc VAT)	- +
SMSM02.5008P*P	M2.5 X 8 POZI PAN MACHINE SCREW ZINC Out of Stock	£39.20 (exc VAT) per THOU £47.04 (inc VAT)	- +
SMSM02.5010P*	M2.5 X 10 POZI PAN MACHINE SCREW Out of Stock	£33.60 (exc VAT) per THOU £40.32 (inc VAT)	- +
SMSM02.5010P*P	M2.5 X 10 POZI PAN MACHINE SCREW ZINC 900 In Stock for despatch	£33.10 (exc VAT) per THOU £39.72 (inc VAT)	- +
SMSM02.5012P*	M2.5 X 12 POZI PAN MACHINE SCREW Out of Stock	£48.40 (exc VAT) per THOU £58.08 (inc VAT)	- +
SMSM02.5012P*P	M2.5 X 12 POZI PAN MACHINE SCREW ZINC 365 In Stock for despatch	Price Unavailable	- +
SMSM02.5016P*	M2.5 X 16 POZI PAN MACHINE SCREW Out of Stock	£36.40 (exc VAT) per THOU £43.68 (inc VAT)	- +
SMSM02.5016P*P	M2.5 X 16 POZI PAN MACHINE SCREW ZINC 1945 In Stock for despatch	£34.40 (exc VAT) per THOU £41.28 (inc VAT)	- +
SMSM02.5020P*	M2.5 X 20 POZI PAN MACHINE SCREW Out of Stock	£96.50 (exc VAT) per THOU £115.80 (inc VAT)	- +
SMSM02.5020P*P	M2.5 X 20 POZI PAN MACHINE SCREW ZINC Out of Stock	£357.20 (exc VAT) per THOU £428.64 (inc VAT)	- +
SMSM02.5025P*P	M2.5 X 25 POZI PAN MACHINE SCREW ZINC Out of Stock	Price Unavailable	- +
SMSM03005P*	M3 X 5 POZI PAN MACHINE SCREW Out of Stock	£70.00 (exc VAT) per THOU £84.00 (inc VAT)	- +
SMSM03005P*P	M3 X 5 POZI PAN MACHINE SCREW ZINC 4075 In Stock for despatch	Price Unavailable	- +
SMSM03006P*	M3 X 6 POZI PAN MACHINE SCREW Out of Stock	£40.80 (exc VAT) per THOU £48.96 (inc VAT)	- +
SMSM03006P*B	M3 X 6 POZI PAN MACHINE SCREW CHEM BLACK 5000 In Stock for despatch	Price Unavailable	- +
SMSM03006P*P	M3 X 6 POZI PAN MACHINE SCREW ZINC 4238 In Stock for despatch	£22.00 (exc VAT) per THOU £26.40 (inc VAT)	- +
SMSM03008P*	M3 X 8 POZI PAN MACHINE SCREW Out of Stock	£26.70 (exc VAT) per THOU £32.04 (inc VAT)	- +
SMSM03008P*B	M3 X 8 POZI PAN MACHINE SCREW CHEMI BLACK 3900 In Stock for despatch	Price Unavailable	- +
SMSM03008P*P	M3 X 8 POZI PAN MACHINE SCREW ZINC 15535 In Stock for despatch	Price Unavailable	- +
SMSM03010P*	M3 X 10 POZI PAN MACHINE SCREW Out of Stock	£30.40 (exc VAT) per THOU £36.48 (inc VAT)	- +
SMSM03010P*P	M3 X 10 POZI PAN MACHINE SCREW ZINC 7205 In Stock for despatch	£33.20 (exc VAT) per THOU £39.84 (inc VAT)	- +
SMSM03012P*	M3 X 12 POZI PAN MACHINE SCREW Out of Stock	£31.60 (exc VAT) per THOU £37.92 (inc VAT)	- +
SMSM03012P*P	M3 X 12 POZI PAN MACHINE SCREW ZINC 5752 In Stock for despatch	£46.20 (exc VAT) per THOU £55.44 (inc VAT)	- +
SMSM03016P*	M3 X 16 POZI PAN MACHINE SCREW Out of Stock	£41.60 (exc VAT) per THOU £49.92 (inc VAT)	- +
SMSM03016P*P	M3 X 16 POZI PAN MACHINE SCREW ZINC 1005 In Stock for despatch	£31.50 (exc VAT) per THOU £37.80 (inc VAT)	- +
SMSM03020P*	M3 X 20 POZI PAN MACHINE SCREW Out of Stock	£49.40 (exc VAT) per THOU £59.28 (inc VAT)	- +
SMSM03020P*P	M3 X 20 POZI PAN MACHINE SCREW ZINC 265 In Stock for despatch	£33.90 (exc VAT) per THOU £40.68 (inc VAT)	- +
SMSM03025P*	M3 X 25 POZI PAN MACHINE SCREW Out of Stock	£46.30 (exc VAT) per THOU £55.56 (inc VAT)	- +
SMSM03025P*P	M3 X 25 POZI PAN MACHINE SCREW ZINC 793 In Stock for despatch	£31.95 (exc VAT) per THOU £38.34 (inc VAT)	- +
SMSM03030P*	M3 X 30 POZI PAN MACHINE SCREW Out of Stock	£127.60 (exc VAT) per THOU £153.12 (inc VAT)	- +
SMSM03030P*P	M3 X 30 POZI PAN MACHINE SCREW ZINC 800 In Stock for despatch	£39.30 (exc VAT) per THOU £47.16 (inc VAT)	- +
SMSM03035P*P	M3 X 35 POZI PAN MACHINE SCREW ZINC Out of Stock	£356.90 (exc VAT) per THOU £428.28 (inc VAT)	- +
SMSM03.5010P*P	M3.5 X 10 POZI PAN MACHINE SCREW ZINC Out of Stock	£45.60 (exc VAT) per THOU £54.72 (inc VAT)	- +
SMSM03.5016P*	M3.5 X 16 POZI PAN MACHINE SCREW Out of Stock	£48.50 (exc VAT) per THOU £58.20 (inc VAT)	- +
SMSM03.5020P*P	M3.5 X 20 POZI PAN MACHINE SCREW ZINC Out of Stock	£31.50 (exc VAT) per THOU £37.80 (inc VAT)	- +
SMSM03.5020P*	M3.5 X 20 POZI PAN MACHINE SCREW Out of Stock	£43.50 (exc VAT) per THOU £52.20 (inc VAT)	- +
SMSM03.5025P*	M3.5 X 25 POZI PAN MACHINE SCREW Out of Stock	£70.50 (exc VAT) per THOU £84.60 (inc VAT)	- +
SMSM04006P*	M4 X 6 POZI PAN MACHINE SCREW Out of Stock	£33.60 (exc VAT) per THOU £40.32 (inc VAT)	- +
SMSM04006P*B	M4 X 6 POZI PAN MACHINE SCREW BLACK 1000 In Stock for despatch	£221.00 (exc VAT) per THOU £265.20 (inc VAT)	- +
SMSM04006P*P	M4 X 6 POZI PAN MACHINE SCREW ZINC 2900 In Stock for despatch	£32.60 (exc VAT) per THOU £39.12 (inc VAT)	- +
SMSM04008P*P	M4 X 8 POZI PAN MACHINE SCREW ZINC 435 In Stock for despatch	Price Unavailable	- +
SMSM04010P*	M4 X 10 POZI PAN MACHINE SCREW Out of Stock	£47.90 (exc VAT) per THOU £57.48 (inc VAT)	- +
SMSM04010P*P	M4 X 10 POZI PAN MACHINE SCREW ZINC 54 In Stock for despatch	£37.00 (exc VAT) per THOU £44.40 (inc VAT)	- +
SMSM04012P*	M4 X 12 POZI PAN MACHINE SCREW Out of Stock	£46.90 (exc VAT) per THOU £56.28 (inc VAT)	- +
SMSM04012P*P	M4 X 12 POZI PAN MACHINE SCREW ZINC 98 In Stock for despatch	£38.40 (exc VAT) per THOU £46.08 (inc VAT)	- +
SMSM04016P*P	M4 X 16 POZI PAN MACHINE SCREW ZINC 1240 In Stock for despatch	£58.40 (exc VAT) per THOU £70.08 (inc VAT)	- +
SMSM04020P*	M4 X 20 POZI PAN MACHINE SCREW Out of Stock	£55.90 (exc VAT) per THOU £67.08 (inc VAT)	- +
SMSM04020P*B	M4 X 20 POZI PAN MACHINE SCREW CHEMI BLACK Out of Stock	Price Unavailable	- +
SMSM04020P*P	M4 X 20 POZI PAN MACHINE SCREW ZINC 900 In Stock for despatch	£50.60 (exc VAT) per THOU £60.72 (inc VAT)	- +
SMSM04025P*P	M4 X 25 POZI PAN MACHINE SCREW ZINC 14 In Stock for despatch	£80.00 (exc VAT) per THOU £96.00 (inc VAT)	- +
SMSM04030P*	M4 X 30 POZI PAN MACHINE SCREW Out of Stock	£87.10 (exc VAT) per THOU £104.52 (inc VAT)	- +
SMSM04030P*P	M4 X 30 POZI PAN MACHINE SCREW ZINC 131 In Stock for despatch	£81.80 (exc VAT) per THOU £98.16 (inc VAT)	- +
SMSM04035P*P	M4 X 35 POZI PAN MACHINE SCREW ZINC 10 In Stock for despatch	£161.70 (exc VAT) per THOU £194.04 (inc VAT)	- +
SMSM04040P*P	M4 X 40 POZI PAN MACHINE SCREW ZINC 667 In Stock for despatch	£92.20 (exc VAT) per THOU £110.64 (inc VAT)	- +
SMSM04050P*P	M4 X 50 POZI PAN MACHINE SCREW ZINC 228 In Stock for despatch	£109.80 (exc VAT) per THOU £131.76 (inc VAT)	- +
SMSM04070P*	M4 X 70 POZI PAN MACHINE SCREW ZINC Out of Stock	£154.10 (exc VAT) per THOU £184.92 (inc VAT)	- +
SMSM05006P*P	M5 X 6 POZI PAN MACHINE SCREW ZINC 1569 In Stock for despatch	£54.50 (exc VAT) per THOU £65.40 (inc VAT)	- +
SMSM05008P*P	M5 X 8 POZI PAN MACHINE SCREW ZINC 388 In Stock for despatch	£37.00 (exc VAT) per THOU £44.40 (inc VAT)	- +
SMSM05010P*	M5 X 10 POZI PAN MACHINE SCREW Out of Stock	£42.80 (exc VAT) per THOU £51.36 (inc VAT)	- +
SMSM05010P*P	M5 X 10 POZI PAN MACHINE SCREW ZINC Out of Stock	£59.10 (exc VAT) per THOU £70.92 (inc VAT)	- +
SMSM05012P*	M5 X 12 POZI PAN MACHINE SCREW Out of Stock	£61.70 (exc VAT) per THOU £74.04 (inc VAT)	- +
SMSM05012P*P	M5 X 12 POZI PAN MACHINE SCREW ZINC 743 In Stock for despatch	£53.30 (exc VAT) per THOU £63.96 (inc VAT)	- +
SMSM05016P*B	M5 X 16 POZI PAN MACHINE SCREW CHEMI BLACK Out of Stock	£85.60 (exc VAT) per THOU £102.72 (inc VAT)	- +
SMSM05016P*P	M5 X 16 POZI PAN MACHINE SCREW ZINC 350 In Stock for despatch	£53.60 (exc VAT) per THOU £64.32 (inc VAT)	- +
SMSM05020P*	M5 X 20 POZI PAN MACHINE SCREW Out of Stock	£99.90 (exc VAT) per THOU £119.88 (inc VAT)	- +
SMSM05020P*P	M5 X 20 POZI PAN MACHINE SCREW ZINC 70 In Stock for despatch	£95.00 (exc VAT) per THOU £114.00 (inc VAT)	- +
SMSM05025P*P	M5 X 25 POZI PAN MACHINE SCREW ZINC 346 In Stock for despatch	£82.80 (exc VAT) per THOU £99.36 (inc VAT)	- +
SMSM05030P*	M5 X 30 POZI PAN MACHINE SCREW Out of Stock	£96.10 (exc VAT) per THOU £115.32 (inc VAT)	- +
SMSM05030P*P	M5 X 30 POZI PAN MACHINE SCREW ZINC 312 In Stock for despatch	£62.16 (exc VAT) per THOU £74.59 (inc VAT)	- +
SMSM05035P*P	M5 X 35 POZI PAN MACHINE SCREW ZINC 882 In Stock for despatch	£144.20 (exc VAT) per THOUS £173.04 (inc VAT)	- +
SMSM05040P*	M5 X 40 POZI PAN MACHINE SCREW Out of Stock	£121.60 (exc VAT) per THOU £145.92 (inc VAT)	- +
SMSM05040P*P	M5 X 40 POZI PAN MACHINE SCREW ZINC 99 In Stock for despatch	£154.20 (exc VAT) per THOU £185.04 (inc VAT)	- +
SMSM05050P*P	M5 X 50 POZI PAN MACHINE SCREW ZINC 80 In Stock for despatch	£219.70 (exc VAT) per THOU £263.64 (inc VAT)	- +
SMSM05060P*P	M5 X 60 POZI PAN MACHINE SCREW ZINC Out of Stock	£238.20 (exc VAT) per THOU £285.84 (inc VAT)	- +
SMSM05070P*	M5 X 70 POZI PAN MACHINE SCREW Out of Stock	£642.90 (exc VAT) per THOU £771.48 (inc VAT)	- +
SMSM05070P*P	M5 X 70 POZI PAN MACHINE SCREW ZINC Out of Stock	£642.90 (exc VAT) per THOU £771.48 (inc VAT)	- +
SMSM05075P*P	M5 X 75 POZI PAN MACHINE SCREW ZINC Out of Stock	£312.00 (exc VAT) per THOU £374.40 (inc VAT)	- +
SMSM05080P*P	M5 X 80 POZI PAN MACHINE SCREW ZINC 24 In Stock for despatch	£289.30 (exc VAT) per THOU £347.16 (inc VAT)	- +
SMSM05100P*P	M5 X 100 POZI PAN MACHINE SCREW ZINC Out of Stock	Price Unavailable	- +
SMSM06010P*	M6 X 10 POZI PAN MACHINE SCREW Out of Stock	£59.70 (exc VAT) per THOUS £71.64 (inc VAT)	- +
SMSM06010P*P	M6 X 10 POZI PAN MACHINE SCREW ZINC 1339 In Stock for despatch	£131.20 (exc VAT) per THOU £157.44 (inc VAT)	- +
SMSM06012P*	M6 X 12 POZI PAN MACHINE SCREW 490 In Stock for despatch	£97.83 (exc VAT) per THOUS £117.40 (inc VAT)	- +
SMSM06012P*P	M6 X 12 POZI PAN MACHINE SCREW ZINC 1010 In Stock for despatch	£76.50 (exc VAT) per THOUS £91.80 (inc VAT)	- +
SMSM06012P*PL	M6 X 12 POZI PAN LOCTITE PATCH ZINC SCREW 15000 In Stock for despatch	Price Unavailable	- +
SMSM06016P*	M6 X 16 POZI PAN MACHINE SCREW Out of Stock	£80.70 (exc VAT) per THOUS £96.84 (inc VAT)	- +
SMSM06016P*P	M6 X 16 POZI PAN MACHINE SCREW ZINC 230 In Stock for despatch	£107.10 (exc VAT) per THOUS £128.52 (inc VAT)	- +
SMSM06020P*	M6 X 20 POZI PAN MACHINE SCREW Out of Stock	£104.10 (exc VAT) per THOUS £124.92 (inc VAT)	- +
SMSM06020P*P	M6 X 20 POZI PAN MACHINE SCREW ZINC 306 In Stock for despatch	£119.10 (exc VAT) per THOU £142.92 (inc VAT)	- +
SMSM06025P*	M6 X 25 POZI PAN MACHINE SCREW Out of Stock	£288.30 (exc VAT) per THOUS £345.96 (inc VAT)	- +
SMSM06025P*P	M6 X 25 POZI PAN MACHINE SCREW ZINC 34 In Stock for despatch	£114.00 (exc VAT) per THOUS £136.80 (inc VAT)	- +
SMSM06030P*P	M6 X 30 POZI PAN MACHINE SCREW ZINC 9252 In Stock for despatch	£228.00 (exc VAT) per THOUS £273.60 (inc VAT)	- +
SMSM06035P*P	M6 X 35 POZI PAN MACHINE SCREW ZINC 10 In Stock for despatch	£228.80 (exc VAT) per THOU £274.56 (inc VAT)	- +
SMSM06040P*B	M6 X 40 POZI PAN MACHINE SCREW CHEMI BLACK 540 In Stock for despatch	£205.10 (exc VAT) per THOU £246.12 (inc VAT)	- +
SMSM06040P*P	M6 X 40 POZI PAN MACHINE SCREW ZINC 106 In Stock for despatch	£223.70 (exc VAT) per THOU £268.44 (inc VAT)	- +
SMSM06045P*P	M6 X 45 POZI PAN MACHINE SCREW ZINC Out of Stock	Price Unavailable	- +
SMSM06050P*	M6 X 50 POZI PAN MACHINE SCREW 55 In Stock for despatch	Price Unavailable	- +
SMSM06050P*B	M6 X 50 POZI PAN MACHINE SCREW BLACK Out of Stock	£205.10 (exc VAT) per THOUS £246.12 (inc VAT)	- +
SMSM06050P*P	M6 X 50 POZI PAN MACHINE SCREW ZINC 189 In Stock for despatch	£202.60 (exc VAT) per THOU £243.12 (inc VAT)	- +
SMSM06060P*	M6 X 60 POZI PAN MACHINE SCREW Out of Stock	£229.20 (exc VAT) per THOU £275.04 (inc VAT)	- +
SMSM06060P*P	M6 X 60 POZI PAN HEAD MACHINE SCREW ZINC PLATED 72 In Stock for despatch	£259.90 (exc VAT) per THOU £311.88 (inc VAT)	- +
SMSM06100P*P	M6 X 100 PAN HEAD POZI MACHINE SCREW ZINC COATED Out of Stock	£330.60 (exc VAT) per THOUS £396.72 (inc VAT)	- +
SMSM08050P*P	M8 X 50 POZI PAN MACHINE SCREW ZINC Out of Stock	£293.20 (exc VAT) per THOU £351.84 (inc VAT)	- +

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