[W126 Coupe] Lug Bolts for Lorinser Wheels

[Dick Spellman]

Hi Jim:

Good questions.  I would like to know why the needed conical depression on the bolt head vs. the flat bolt head?

Dick
  ----- Original Message ----- 
  From: JR560SEC at aol.com 
  To: mbcoupes at mbcoupes.com 
  Sent: Tuesday, July 19, 2005 8:51 PM
  Subject: [W126 Coupe] Lug Bolts for Lorinser Wheels


  Greetings, All-----------

  I've searched the archives, and I think I have a question that has not been asked before.  I have a set of Lorinser RS90 wheels in 17x8 size, ET22, which I will use on our 1985 500SEC (Euro).  I purchased the wheels without lug bolts, then found out the lug bolts must have the "ACORN" (conical) seat for the bolt, rather than the "RADIUS" (spherical) seat found on the OEM wheels.  In any case, the overall bolt length will be different from stock, given the increased thickness of the wheels compared to the 1985 OEM aluminum wheels.

  Speaking to a Lorinser distributor, it was suggested I use a bolt with 40mm length (below the head).  Since he was speaking from memory, I feel I should verify this independently.

  My questions:

  1.  What is a good (preferably East Coast US) source for 12x1.5 lug bolts with the conical seat on the base of the bolt head?

  2.  To determine the required bolt length, it seems I once read a quote on the number of revolutions the bolt should turn into the hub to satisfy the factory specifications.  Was that 8 or 9 turns?  With 1.5-pitch threads, that would give either 12 or 13.5 mm of penetration.

  Thanks so much in advance!  Jim Rothrock, Windermere, Florida


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