Self threading bolts

Rob_AD

Member
I am looking for self threading / self tapping bolts around M8 - M10 in size. I have seen them before but I can’t find any for sale. We got a roller door installed and the fitters had a bunch of them for bolting the runners into the RSJ’s on our shed.

The type I have seen look like a normal M10 bolt but the shank is slightly triangular rather than round. The idea being you drill a pilot hole and then screw the bolt into the hole, and it cuts a thread into the hole.

Anyway, if someone could point me to a website or give me the correct name of these I would be much obliged. Local engineering supplier has never heard of them either.
 

ACEngineering

Member
Location
Oxon
I am looking for self threading / self tapping bolts around M8 - M10 in size. I have seen them before but I can’t find any for sale. We got a roller door installed and the fitters had a bunch of them for bolting the runners into the RSJ’s on our shed.

The type I have seen look like a normal M10 bolt but the shank is slightly triangular rather than round. The idea being you drill a pilot hole and then screw the bolt into the hole, and it cuts a thread into the hole.

Anyway, if someone could point me to a website or give me the correct name of these I would be much obliged. Local engineering supplier has never heard of them either.
Google thread forming screws and bolts. I think that's what your looking for.
 

Badshot

Member
Location
Kent
I am looking for self threading / self tapping bolts around M8 - M10 in size. I have seen them before but I can’t find any for sale. We got a roller door installed and the fitters had a bunch of them for bolting the runners into the RSJ’s on our shed.

The type I have seen look like a normal M10 bolt but the shank is slightly triangular rather than round. The idea being you drill a pilot hole and then screw the bolt into the hole, and it cuts a thread into the hole.

Anyway, if someone could point me to a website or give me the correct name of these I would be much obliged. Local engineering supplier has never heard of them either.

Screenshot_20190722-094209.png

That sort of thing?
 

Rob_AD

Member
Ankabolts ? Thunderscrews ?
Those are concrete fixings

Google thread forming screws and bolts. I think that's what your looking for.
Yes that's bringing up a few more useful results... Taptite seems to be the name of what I'm after

Tek-screws should do that.
Haven't seen Tek Screws in M8 or M10 before

Perfect that's just them, never heard of Taptite before cheers!!
 

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World Food Day: NFU Cymru celebrates Welsh food producers at the Senedd

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Written by Rachel Martin

NFU Cymru members and Assembly Members have been celebrating the role that Welsh farmers play in producing nutritious, high quality, safe affordable food during an event at the Senedd today on World Food Day (October 16).

The lunchtime event, which was sponsored by Llyr Gruffydd AM, included a special menu of fine Welsh produce.

Speaking at the event, NFU Cymru...
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