Needle type/size

[Skizzer]

Howdy,

New to the site, just a guy who does fairly repairs and occasionally basic fabrication.  Been at it a long time, but consider myself a pretty rank novice.  I've been using hand sewing awls containing thread and wanted to try using harness needles.    Finally got a copy of Stohlman's Hand Sewing and he recommends "egg eye harness needles of size 4 or 5".  Tried to go online and buy some, but the sizes don't seem to be the same, in fact they appear reversed:    their Size 4  is 48mm length X 0.9mm dia.  Stohlman's drawings look like his needles are at least 3 inches long.  What am I missing here?

Thanks.

[heydox]

Hey Skizzer. Big welcome to you. This thread covers your issue really well. 

Short and skinny of it all- buy a pack of John James Saddlers Harness Needles in size #2 (002)

[Skizzer]

Thx Heydox!  Much appreciated!  Will do as you recommend.