What's the stock Oil Pressure Unit thread size?

[Richy Gonzalez]

I'm interested in a unit sold by www.nissports.com (http://www.nissports.com) which will allow me to have the stock oil pressure unit along with an after market gauge. Can someone tell what the thread size of the stock oil pressure unit?

Here's the unit PN# NS-2100
http://www.nissport.com/images/NS-2100.jpg

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Richy Gonzalez
GB Racing - #24 ITA CRX (http://groups.msn.com/TheGonzalezFamilyRichySheilaandNyah/projectitacrx.msnw)
LAMIN-X Protective Films (http://www.lamin-x.com)

[Chris Sawatsky]

I believe it's 1/8" BSPT