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Vented Hex Head Set Screws

SKU: VS01 Category:

A2 Stainless Steel, precision cleaned Vented Hex Screws, created to DIN 933 with a central vent to aid in the elimination of virtual leaks.

A virtual leak happens due to residual air space left at the bottom of a hole in which a screw is threaded – as well as the screw itself containing voids of trapped air. Vibrations can potentially cause the loosening of the vented hex screw which releases the aforementioned gas, creating a virtual leak.

Also referred to as Vacuum Hex screws, these components aid in the elimination of virtual leaks in high vacuum and ultra high vacuum systems, as well as improving pump-down times – and are most effective when used alongside a vented washer. This trapped gas is removed via the central ventilation hole in the middle of the screw.

Vented Hex screws are available in M4 to M8, with specials available upon request. A4 Stainless Steel screws are also available, with both Steel types available with coatings of Silver, Gold, Nickel and other coatings.

For more information, please get in touch with our experienced sales team by giving us a call or completing our enquiry form.

Vented Hex Head Set Screws

d2 dimension can be to customer specification.

Metric Technical Information & Available Sizes
Thread Diameter M3 M4 M5 M6 M8
d2 (mm) 1.5
1.5
1.5
2.0
2.0
h (mm) 2.1 2.8 3.5
4.0 5.3
A/F (mm) 5.5 7 8
10 13
Available Sizes M3 M4 M5 M6 M8
3mm black icon image
4mm black icon image black icon image
5mm black icon image black icon image black icon image
6mm black icon image black icon image black icon image black icon image
8mm black icon image black icon image black icon image black icon image black icon image
10mm black icon image black icon image black icon image black icon image black icon image
12mm black icon image black icon image black icon image black icon image black icon image
14mm black icon image 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
18mm 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 black icon image
30mm black icon image   black icon image
35mm black icon image
black icon image = Available
Size not listed? Please call to discuss – we may be able to provide it.
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