Inquiry (采购产品): About thread plug gage Dear Sir, We just want to purchase a thread plug gage, the spec is follow. 5/16 – 18 UNC – 2B BRAND G.A.CO P.D. Go. 0.2764 P.D. No Go. 0.2817 Could you give me some help! Thank you in advance! Kind Regards! Liu Jin **** Hidden Message ***** Liu Jin 300385 Company: Tianjin Sida Electric Motor Co., Ltd E-mail: lj@chidamotor.com **** Hidden Message ***** lj@chidamotor.com