Another revisit on security fastening.

[peteb2]

Apology to everyone as this subject has been discussed previously but in this case i need to purchase a professional tool (as opposed the adapter pieces sort made from low grade steel that chowderup the minute you use them)...

I have two sets of those but it does not include the one i need in this case.

I need to access the starter capacitor on my European made household waterpump's motor which is below a plastic cover plate. The plate is attached with an offset style tri-wing head fastener.

I don't have much space to work because pulling out the pump and taking it to a workbench makes it a much bigger job so we're attempting the repair insitsu...

Appreciate if anyone can ID the kind of head this fastening is known as and whether there's a proper tool please.

[peteb2]

I've just found this: (no wonder i am having trouble buying a proper tool).  Looks like its going to be a real project to source... because of the security thing.

"Tri-Wing®

Tri-Wing® is a winged security profile consisting of three edges. Thanks to its unusual, three-wing design, it is intended exclusively for use by professionals.

This profile is primarily used in household appliances and in the aerospace industry.

Licenser is the Phillips Screw Company"

[helius]

The idea that somebody can patent a fastener design and restrict the drivers to "qualified personnel" is a quaint notion harkening back to the days before globalization.

[Samogon]

Wera Kraftform 71 Kraftform Kompakt Security 32 Piece set, Hexagon 1/4" https://www.amazon.com/dp/B0009QX2Q4/ref=cm_sw_r_cp_apip_MOOI2U85vzylO

[tautech]

I've just found this: (no wonder i am having trouble buying a proper tool).  Looks like its going to be a real project to source... because of the security thing.

"Tri-Wing®

Tri-Wing® is a winged security profile consisting of three edges. Thanks to its unusual, three-wing design, it is intended exclusively for use by professionals.

This profile is primarily used in household appliances and in the aerospace industry.

Licenser is the Phillips Screw Company"

Another place you'll see it in NZ is the little white Telecom point of entry boxes on houses.
Reasonably common these days Pete.
If you need one in a hurry hook by and borrow mine.

[Nusa]

Cases like this I'd be temped to just remove it with a screw extractor and replace it with a standard screw when it goes back together.

[clucas]

The plate is attached with an offset style tri-wing head fastener.

Appreciate if anyone can ID the kind of head this fastening is known as and whether there's a proper tool please.

LOL

it's just another type of torx screw, nothing special, and there are readily available screwdrivers hiding in plain sight.

[alsetalokin4017]

"Security Fastening" is just an excuse to buy more tools. The ones that get me are the ones that are recessed very deeply in close fitting holes so you can't get a replaceable-bit screwdriver to reach them, you have to buy an extralong dedicated screwdriver with the appropriate head on it. Or resort to welding a bit from the replaceable set onto a length of rod stock.

Or...

https://www.ebay.com/itm/Extra-Long-6-Security-Bit-32pc-Set-Tamper-Proof-Hex-Torx-Star-Pozi-Tri-Wing/111824191857?epid=10011376054&hash=item1a093dc171:g:svgAAOSwqfNXn9rv:sc:USPSPriority!78237!US!-1

[TERRA Operative]

You want a 'Universal screwdriver' like this one:

https://www.amazon.com/Damaged-Screw-Extractor-Set-Stripped/dp/B014SH8F3E

[Stray Electron]

    The best thing for security screws is a few left handed drill bits.  They'll fit any head type and work fine even in deep holes. LH drill bits will either back the screw out out of the hole or drill it out.  Security screws are a joke!  You can buy a full set of bits to fit them for about $5 from Harbor Freight.

[Samogon]

Harbor freight is a joke.

[amyk]

I'd use a so-called "universal screwdriver" --- a flat-bladed one with the sides ground slightly to form a wedge shape, which fits thus:

[martinr33]

Tri Wing was a mystery 20 years ago, but the low cost security bit sets usually include it. However, the quality can be junk, or OK.

[ChunkyPastaSauce]

http://pdfpiw.uspto.gov/.piw?PageNum=0&docid=02847894

http://www.dtic.mil/dtic/tr/fulltext/u2/a059171.pdf   

[peteb2]

Hi tautech.... yes i do remember the old Telecom white copper-line  boxes having the things. At this stage looks like i might be able to use one from Work so thanks for the offer for now.

I hate to use a person's tools as i know how i feel when someone helps themselves to mine. The number of times i discover my expensive Lindstroms aren't now doing their usual perfect snip and i have a good look to discover that a self-helper took it upon themselves to access my toolbox & has been cutting "just this little spring" ! The fact they never actually replace the tool should i have been lucky enough to catch the bugger red handed and the massive apology with lots of conveniently forgotten promises makes it all the more awkward.... 

I've just found this: (no wonder i am having trouble buying a proper tool).  Looks like its going to be a real project to source... because of the security thing.

"Tri-Wing®

Tri-Wing® is a winged security profile consisting of three edges. Thanks to its unusual, three-wing design, it is intended exclusively for use by professionals.

This profile is primarily used in household appliances and in the aerospace industry.

Licenser is the Phillips Screw Company"

Another place you'll see it in NZ is the little white Telecom point of entry boxes on houses.
Reasonably common these days Pete.
If you need one in a hurry hook by and borrow mine.

[ChunkyPastaSauce]

http://nz.element14.com/duratool/d00391/bit-set-security-33pc/dp/134114001  tw1 thru 4

http://nz.element14.com/wiha/284-tw0-tw1/reversible-blade-triwing-0-1/dp/1200648  tw0 and tw1

[peteb2]

http://nz.element14.com/duratool/d00391/bit-set-security-33pc/dp/134114001  tw1 thru 4

http://nz.element14.com/wiha/284-tw0-tw1/reversible-blade-triwing-0-1/dp/1200648  tw0 and tw1

Thanks CPS. I have the 'fullhouse' kit from Element 14 (1st link) and the version/series of 'TriWing' drives are not the proper stuff.... They just do not fit end of story!

I'll give the next link a shot though just to stock my toolbox.... if anything.

[tautech]

FYI
Another not too long ago thread on this subject:
https://www.eevblog.com/forum/repair/properly-made-tp3-(-tri-lobelobular-)-screwdriver-bits/

[ChunkyPastaSauce]

http://nz.element14.com/duratool/d00391/bit-set-security-33pc/dp/134114001  tw1 thru 4

http://nz.element14.com/wiha/284-tw0-tw1/reversible-blade-triwing-0-1/dp/1200648  tw0 and tw1

Thanks CPS. I have the 'fullhouse' kit from Element 14 (1st link) and the version/series of 'TriWing' drives are not the proper stuff.... They just do not fit end of story!

I'll give the next link a shot though just to stock my toolbox.... if anything.

One of the original design goals of the triwing/torqset (see patent) was to make it so the fastener will reject slightly oversized drivers, to reduce assembly faults damaging the fastener head. If it seem close to the right size yet it doesn't engage, assuming its a standard triwing, it's likely tw-0 (or smaller) (the smallest bit in the 'fullhouse' kit is tw-1)... you can get these down to 000 size (http://eclipsetools.com/products/4-pc-precision-screwdriver-set/), but don't know where in nz.

FYI
Another not too long ago thread on this subject:
https://www.eevblog.com/forum/repair/properly-made-tp3-(-tri-lobelobular-)-screwdriver-bits/

for clarification; tp is for tripoint, the faces are off-center for triwing

[Stray Electron]

Harbor freight is a joke.

  For $5 I can afford to risk it.  And FYI I've been using the same set of bits from them for over 10 years. No complaints yet.

[boffin]

Harbor freight is a joke.

  For $5 I can afford to risk it.  And FYI I've been using the same set of bits from them for over 10 years. No complaints yet.

We have a similar company here in Canada called Princess Auto, and they too sell a nice handy set of security bits for [just]  under $10
https://www.princessauto.com/en/detail/33-pc-security-bit-set/A-p8583023e

[tautech]

Just had a look at a Auckland company I used to get tools from when I was on the tools full time.
Tips:
http://www.sulco.co.nz/s.nl/sc.16/category.969376/.f

They have some drivers too
http://www.sulco.co.nz/Tools/TRI-Wing/Maxxpro-Triwing-Screwdriver-Witte.html

[Raj]

Should get a die grinder.
If you have some spare screws of same type,you can always chuck it up in a vice and just melt and stick an aluminium rod onto it to make a makeshift temporary screwdriver.
also try getting a hold of the screwdriver who's photos i've attached.They are pretty much universal

also here's a link to sets that has it all (both notched flat and tri bit)-

https://www.ebay.com/itm/100-PC-SCREW-DRIVER-BIT-SECURITY-BITS-SET-TORX-STAR-POZI-PHILLIPS/171967303742?epid=1566224844&hash=item280a0cd03e:g:ubEAAOSw5VFWG2VR

https://www.ebay.com/itm/Bit-Driver-Security-Screwdriver-33-Piece-Set-Used-For-Tamper-Proof-Screws/221477455568?hash=item339115c6d0:g:IrkAAOSwoQ1TmQyg


Also,if the screw is a bit loose,sometimes,sticking a rod with m-seal helps make a makeshift screwdriver