Vented Hex Head Screws

hex vented

Vented Hex Head Screws


Technical Specs

Vented Hex Head Screws

When a screw is inserted into a blind tapped hole, a small pocket of gas will be trapped below the screw, this pocket of gas will give rise to a ‘virtual’ leak within your system. The use of vented screws will allow the pocket of gas to escape thus avoiding ‘virtual’ leaks.
LewVac offer a broad range of vented screws in many different styles and sizes. Just a small selection are listed here. If the style of screw or size that you require is not listed, please contact our sales office.


Supplied in packs of ten pieces.
304 stainless steel as standard.
316 stainless steel available on request.
UHV compatible.
Molybdenum disulphide (MoS2), tungsten disulphide (WS2), nickel (Ni) and silver (Ag) plating available on request.
Additional screw types and sizes available on request.

Product CodeThread SizeLength, mmPriceQuantityPDF & STP
A-VS-M3X5HM35.0 P.O.A
    A-VS-M3X6HM3 6.0 P.O.A
      A-VS-M3X8HM3 8.0 £13
        A-VS-M3X10HM3 10.0 P.O.A
          A-VS-M3X12HM3 12.0 P.O.A
            A-VS-M4X6H M4 6.0 P.O.A
              A-VS-M4X8H M4 8.0 P.O.A
                A-VS-M4X10H M4 10.0 P.O.A
                  A-VS-M4X12H M4 12.0 P.O.A
                    A-VS-M4X16H M4 16.0 P.O.A
                      A-VS-M4X20H M4 20.0 P.O.A
                        A-VS-M4X25H M4 25.0 P.O.A
                          A-VS-M5X6H M5 6.0 P.O.A
                            A-VS-M5X8H M5 8.0 P.O.A
                              A-VS-M5X10H M5 10.0 P.O.A
                                A-VS-M5X12H M5 12.0 P.O.A
                                  A-VS-M5X16H M5 16.0 P.O.A
                                    A-VS-M5X20H M5 20.0 P.O.A
                                      A-VS-M5X25H M5 25.0 P.O.A
                                        A-VS-M6X8H M6 8.0 P.O.A
                                          A-VS-M6X10H M6 10.0 P.O.A
                                            A-VS-M6X12H M6 12.0 P.O.A
                                              A-VS-M6X16H M6 16.0 P.O.A
                                                A-VS-M6X20H M6 20.0 P.O.A
                                                  A-VS-M6X25H M6 25.0 P.O.A
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