Socket Screws - Buttons - Metric - A4 Stainless Steel

The most common thread type in production today. Usually specified as M then a number x another number. This signifies the thread diameter and the length of the fastener.

For example M4 x 30 means that the major thread diameter (the external distance across the outside of the thread) is 4mm and the length is 30mm. Length is usually measured from the underside of the fastener head.

A4 Stainless is often referred to as 316 or 18/10 stainless. As in A2 above, the numbers 18/10 refer to the chromium and nickel content- 18% chromium and 10% nickel.

A4 stainless is often used in marine or chemical environments as it has greater corrosion resistance than A2.

The chemical composition of both A2 and A4 stainless steel are almost identical with the most notable differences being the higher nickel content and the addition of Molybdenum in A4. Molybdenum is a silvery white metal that is highly corrosion resistant, very ductile and has an extremely high melting point.

There can also be Titanium present in A4 stainless at the option of the manufacturer.

Typically, A4 grade stainless steel costs slightly more than A2 because of its enhanced chemical and production properties. The extra cost can be justified, however, because hardware made of A4 stainless steel is extra resistant to tarnish and corrosion, enabling it to last a very long time.

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9 Items

Code Product Name Info Pack Size Price Qty
M4 x 10mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 25 SBMCA404010 M4 x 10mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 25
25
£33.00 £39.60
M4 x 10mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 25 SBMCA404010
M4 x 10mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 25
25
£33.00 £39.60
M4 x 10mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 25 SBMCA405020 M5 x 20mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 5
5
£12.38 £14.86
M4 x 10mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 25 SBMCA405020
M5 x 20mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 5
5
£12.38 £14.86
M4 x 10mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 25 SBMCA405040 M5 x 40mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 5
5
£12.38 £14.86
M4 x 10mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 25 SBMCA405040
M5 x 40mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 5
5
£12.38 £14.86
M4 x 10mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 25 SBMCA406012 M6 x 12mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 25
25
£36.93 £44.32
M4 x 10mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 25 SBMCA406012
M6 x 12mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 25
25
£36.93 £44.32
M4 x 10mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 25 SBMCA406040 M6 x 40mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 5
5
£20.63 £24.76
M4 x 10mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 25 SBMCA406040
M6 x 40mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 5
5
£20.63 £24.76
M4 x 10mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 25 SBMCA408016 M8 x 16mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 5
5
£12.95 £15.54
M4 x 10mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 25 SBMCA408016
M8 x 16mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 5
5
£12.95 £15.54
M4 x 10mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 25 SBMCA408030 M8 x 30mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 5
5
£23.00 £27.60
M4 x 10mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 25 SBMCA408030
M8 x 30mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 5
5
£23.00 £27.60
M4 x 10mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 25 SBMCA408035 M8 x 35mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 5
5
£23.24 £27.89
M4 x 10mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 25 SBMCA408035
M8 x 35mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 5
5
£23.24 £27.89
M4 x 10mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 25 SBMCA408040 M8 x 40mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 5
5
£24.06 £28.87
M4 x 10mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 25 SBMCA408040
M8 x 40mm - Socket Button ISO 7380 - A4 Stainless Steel - Pack of 5
5
£24.06 £28.87
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9 Items