Re: [FWDLK] Fw: Left hand lug nuts

[John McCann <jmccann02@xxxxxxxxxxx>]

Acetylene tanks also have left hand threads as well as the hose connections to prevent hooking up the wrong type of gas to the welding torch, I suppose the propane connection is for safety also. Propane bottle connections for forklifts are  right hand thread though.

    John

 

 

 

----- Original Message -----

From: fins59

To: L-FORWARDLOOK@xxxxxxxxxxxxx

Sent: 3/31/2003 7:08:04 PM

Subject: Re: [FWDLK] Fw: Left hand lug nuts

The arbor screw holding the saw blade on my compound miter saw has left handed threads and the bolt holding the blade on my radial arm saw has left handed threads.   Also your propane tank for your gas grill has a left handed thread. I can understand why the saws have them but why propane tanks?    (My '61 Willy's Jeep also has lefthanded lugs on drivers side)    John Z

----- Original Message -----

From: Ron Vest

To: L-FORWARDLOOK@xxxxxxxxxxxxx

Sent: Monday, March 31, 2003 12:33 PM

Subject: Re: [FWDLK] Fw: Left hand lug nuts

Wayne & Jim,
I used to run a manufacturing plant where we provided parts to G.E. (Jet Engine Division), Pratt & Whitney, (Jet and Piston Engines), Rolls Royce Engines, Hawker Siddeley, Bell Helicopter, Sikorsky, North American Aviation, Thiokol, United Aircraft Ltd, and most all Gear/transmission manufacturers.
I can tell you unequivocally, left hand threads are very common, and in VERY high quality applications. The examples I have given here are the highest quality of mechanical components known to man ... NO exaggeration!
Ron ...


In a message dated 3/31/2003 12:12:48 PM Central Standard Time, wgraefen@xxxxxxxxxxxxxx writes:

----- Original Message ----- From: Jim McMullan
Sent: Monday, March 31, 2003 12:00 PM
Subject: RE: [Chrysler300] Left hand lug nuts



So the guy has not seen application where left hand threads were required! He should to talk to G.E. or Prat & Whitney or Westinghouse.-Rolls Roice ect. When you are assembling turbines whit rotating masses that way over 800 lbs you torque the nuts up to 3000 lbs foot and stretch them 100 degres.And yes some are left hand.The torque and stretch are called out in the book and you better pay attenshion.Feel free to forward to list.Jim McMullan 300F

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