You are looking at: One Hewland LG Main Case 5/8" BSPT Fill Plug.     These Plugs have the Recessed Hex for installation.   They use a 1/2" Allen Wrench or allen socket to install.   They are exactly the same as the original Plugs. The Hewland Part # is FT 2011.   Pricing is for One Plug, I have as many of these Plugs as you may need; just purchase the quantity you need.   I also have these Plugs with a magnet for the Bottom of the MainCase to collect debris.  The Hewland LG Manual lists 4 Plugs needed per Transaxle.  I also have other items listed for the Hewland LG Transaxle available.

Guaranteed that you will be happy.  I will ship via USPS for buyers in the USA or Internationally.  Non-paying bidders will be reported to Ebay.  Please email any questions.  Ebay should be a positive experience and I will do all I can on my part as the seller to achieve that goal; I also expect the buyer to do their part too.  Thanks for looking & good luck.