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Invar Hex Socket Cap Screws (DIN 912)

Invar Hex Socket Cap Screws, in accordance with DIN 912 standard / ISO 4762, offer extremely low rates of thermal expansion and high dimensional stability – typically used for precision applications that require minimal dimensional change due to a change in temperature.

Equipped with an internal hex drive and a cylindrical style head, they protrude from the target surface once installed – a counterbore hole will provide a flush, aesthetically pleasing finish.

The head often features a knurled outer edge for increased grip while its height is equal to that of the thread diameter.

Fastened using an Allen key or hex wrench, Allen Head Bolts offer increased cam-out resistance to enable use with power drivers – applying additional torque to speed up the installation process.

DIN 912 Invar Hex Socket Cap Screws are available now at Fastenright in thread sizes from M3 to M8 as standard, with lengths from 6mm to 35mm.

Available in either Invar or Super Invar as standard. Socket Cap Screws can be supplied in a huge range of materials including 12.9 Grade Steel, A2 / A4 Stainless Steel, Brass and Nylon.

Various exotic materials such as Aluminium, Titanium, Monel, Inconel, Molybdenum, Hastelloy and Phosphor Bronze are also available to order.

Non-standard sizes, grades and finishes are available to order as specials, including small volume manufacture, modifications and bespoke parts made to drawings. Minimum order quantities apply.Invar Hex Socket Cap Screws (DIN 912) Technical Drawing

Technical Data & Available Sizes
Thread Diameter M3 M4 M5 M6 M8
dk (mm) 5.5 7 8.5 10 13
k (mm) 3 4 5 6 8
S (mm) 2.5 3 4 5 6
Available Sizes (L) M3 M4 M5 M6 M8
6mm black icon image
8mm black icon image black icon image
10mm black icon image black icon image black icon image
12mm black icon image black icon image black icon image black icon image
16mm black icon image black icon image black icon image black icon image black icon image
20mm black icon image black icon image black icon image black icon image black icon image
25mm black icon image black icon image black icon image black icon image
30mm black icon image black icon image
35mm black icon image
black icon image = Invar
Size not listed? Please make an enquiry – we may be able to provide it.
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