Titanium bolts.

[Trevor HowleyParticipant @trevorhowley19606]

Hi all , I’m looking for a good supplier of titanium nuts and bolts around 5 to 6mm diameter, any suggestions please.

[HollowpointParticipant @hollowpoint]

AliExpress.

But I’m sure someone will be along shortly to tell you that Chinese fasteners are unsafe.

I’ve used them for years. 🤷🏼‍♂️

[bernard towersParticipant @bernardtowers37738]

THats a bit like saying I want a bit of metal for turning. dont you need to know what they are going to be used for so you can buy the right grade???

[Trevor HowleyParticipant @trevorhowley19606]

I’ll take a look on Ali express,cheers .

[Old SchoolParticipant @oldschool]

GWR Fasteners have them in the sizes you want.

[VicParticipant @vic]

I bought a variety of Titanium Cap Head Socket screws many years ago up to M8 with very nice reduced head. I can’t remember the specific supplier, but, I believe it was one that supplies bolts for Motorcycles etc, so that may aid in any future search terms?

Edit: I did buy a couple of M4 or M5 from RS components. Not sure if they still sell them?

[Trevor HowleyParticipant @trevorhowley19606]

Thank you for replies ,will try GWR.

[Trevor HowleyParticipant @trevorhowley19606]

Thank you Old school , GWR have a good selection .

[Involute CurveParticipant @involutecurve]

titan-x.com

[old martParticipant @oldmart]

You hopefully realise that titanium bolts are nowhere as strong as high tensile steel ones.

[Trevor HowleyParticipant @trevorhowley19606]

They are being used for joining ally parts for anodising .

[bernard towersParticipant @bernardtowers37738]

I use 2mm titanium welding wire for that job.

[Trevor HowleyParticipant @trevorhowley19606]

The two parts ideally when joined for anodising stay joined ,hence the need for titanium bolts ,as I understand you can’t use stainless steel .

[old martParticipant @oldmart]

You can also get aluminium wire in different gauges which commercial platers use all the time when anodising. The used lengths are discarded after use as the surface of the wire will be non conductive. There are possible disadvantages of bolting components when processing. Chemicals can get trapped in the joint and leach out later spoiling the finish.

[Trevor HowleyParticipant @trevorhowley19606]

Oldmart, good point this is something I hadn’t thought about , thank you for the advice .

[bernard towersParticipant @bernardtowers37738]

pros dont use all wire as the current is disconnected by the anodising process ,dont ask me how I know!!!!

[old martParticipant @oldmart]

Allow clearance in holes which are to be anodised, with sulphuric anodising holes will shrink by the thickness of the coating. A surface will grow because the substrate dissolves to make the aluminium oxide coating which is twice as thick as the aluminium used up in the process. So a coating 0.001″ thick raises the surface by 0.0005″ from its original level.

In critical parts like aircraft applications there will be oversize taps specially made to compensate for the thickness of anodising and cadmium plating if the holes are not being masked off before surface treatment. The alternative chromic anodising is normally much thinner and very unlikely to require any compensation for thickness.

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