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  #31  
Old 09-30-2022, 06:35 PM
HFS HFS is offline
 
Join Date: Aug 2009
Location: Lemoore, CA
Posts: 522
Default Microfasterners - Torx = 6 Lobe

What the title says:

Microfasteners calls them 6-Lobe instead of Torx.

Same-o, same-o.

HFS
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  #32  
Old 09-30-2022, 07:16 PM
BillL's Avatar
BillL BillL is offline
 
Join Date: Sep 2007
Location: Central IL
Posts: 6,850
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Quote:
Originally Posted by Mel View Post
Torx actually DO come in 100į head!
Mel, I should not have singled out the angle. The real difference is the material yield strength.

It is not about Torx, it is the 304 stainless yield strength. My plenum is held on with 6-32 304 stainless, but phillips. They do smear, but using the APEX bit, seldom slip.

I would love to find standard CAD plated steel Torx for the same price of course.
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  #33  
Old 09-30-2022, 11:47 PM
gregfuess gregfuess is offline
 
Join Date: Jan 2011
Location: Albuquerque, NM
Posts: 115
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Quote:
Originally Posted by HFS View Post
What the title says:

Microfasteners calls them 6-Lobe instead of Torx.

Same-o, same-o.

HFS
Not the same at all. Six Lobe is a hex head shaped screw head. A Torx is a six pointed star shaped screw head. Look closely at what Microfasterners is calling 6-lobe, it's a hex head.
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Last edited by gregfuess : 09-30-2022 at 11:55 PM.
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  #34  
Old 10-01-2022, 09:53 AM
Flying Canuck Flying Canuck is online now
 
Join Date: Jan 2015
Location: Red Deer, Alberta, Canada
Posts: 671
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Quote:
Originally Posted by gregfuess View Post
Not the same at all. Six Lobe is a hex head shaped screw head. A Torx is a six pointed star shaped screw head. Look closely at what Microfasterners is calling 6-lobe, it's a hex head.
I don't think that's exactly the case. Here is the description line from the order that I placed with MicroFasteners a while back. These are great screws.

Quote:
FCMXS0808 - 8-32 x 1/2 T15 - 100 Degree Flat Head 6 Lobe Drive Machine Screws - Stainless 100 pcs/pkg
Note the T15, that is the Torx bit that is used for these screws and it is a very accurate fit. This is not a hex head, 6-lobe is the Torx star with the points rounded at the very end. The driver bit isn't pointed like the true Torx screw star pattern, it is slightly rounded. You can use the T-15 driver with a hex head but a hex driver wouldn't be a great fit for these screw heads.
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Claude Pitre
RV-9A #91081, C-GCPT
Dynon SkyView HDX, IO-320 and WW 200RV C/S. Flying as of August 6, 2018

Added GPS 175 and authorized for IFR April 1, 2021

Interactive map of all of my flights here
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  #35  
Old 10-01-2022, 11:00 AM
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Walt Walt is offline
 
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You might learn some new words if you're around when I have an aircraft come in with all these "fancy" fasteners.
Pretty sure most mechanics (folks that do this for a living) feel the same way.
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  #36  
Old 10-01-2022, 11:33 AM
kreidljj kreidljj is offline
 
Join Date: Aug 2006
Posts: 53
Default Valve Lapping Compound

I learned a long time ago from a veteran aircraft wrench that a dab of valve lapping compound on the tip of the screwdriver performs miracles. It is amazing how well the bit grips the screws and stops stripping. - Jason
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  #37  
Old 10-01-2022, 01:20 PM
gregfuess gregfuess is offline
 
Join Date: Jan 2011
Location: Albuquerque, NM
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Quote:
Originally Posted by Flying Canuck View Post
I don't think that's exactly the case. Here is the description line from the order that I placed with MicroFasteners a while back. These are great screws.



Note the T15, that is the Torx bit that is used for these screws and it is a very accurate fit. This is not a hex head, 6-lobe is the Torx star with the points rounded at the very end. The driver bit isn't pointed like the true Torx screw star pattern, it is slightly rounded. You can use the T-15 driver with a hex head but a hex driver wouldn't be a great fit for these screw heads.
6-lobe isn't a commonly used description of a drive. The picture in the microfasteners website is of a hex. Trying to add a picture, but it's not working. Reference this link: https://www.shutterstock.com/image-v...lat-2075248294

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Last edited by gregfuess : 10-01-2022 at 01:24 PM. Reason: add picture
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  #38  
Old 10-01-2022, 02:01 PM
Flying Canuck Flying Canuck is online now
 
Join Date: Jan 2015
Location: Red Deer, Alberta, Canada
Posts: 671
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Quote:
Originally Posted by gregfuess View Post
6-lobe isn't a commonly used description of a drive. The picture in the microfasteners website is of a hex. Trying to add a picture, but it's not working. Reference this link: https://www.shutterstock.com/image-v...lat-2075248294

The picture is quite poor on that website. I've attached it. I have these screws and they are definitely not hex. If you zoom in you can just make out the lobe rounding extending the corners.
Attached Images
 
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Claude Pitre
RV-9A #91081, C-GCPT
Dynon SkyView HDX, IO-320 and WW 200RV C/S. Flying as of August 6, 2018

Added GPS 175 and authorized for IFR April 1, 2021

Interactive map of all of my flights here
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  #39  
Old 10-01-2022, 09:41 PM
rocketman1988 rocketman1988 is offline
 
Join Date: Jun 2010
Location: Sunman, IN
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Quote:
Originally Posted by Walt View Post
You might learn some new words if you're around when I have an aircraft come in with all these "fancy" fasteners.
Pretty sure most mechanics (folks that do this for a living) feel the same way.
Cause that's the way it's always been done...
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  #40  
Old 10-01-2022, 10:45 PM
Richard Connell Richard Connell is offline
 
Join Date: Aug 2006
Location: Sydney Australia
Posts: 430
Default

I learnt a few new words every year removing various hard to get Philips from seat pans near the edges etc.
my language has improved dramatically since I replaced them with torx.

I wouldnít use them for anything structural but for access panels and the like I find them far superior.
Iíve never stripped one. But Iíve snapped a few because they are much easier to over torque and unlubed S/S can gall as others have pointed out
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