4 LP API thread gauge-4″ Line Pipe Ring Plug Gage

4 LP API thread gauge4" Line Pipe Ring Plug Gage

4 LP API thread gauge-ring plug gage

Line Pipe 4″ API Spec 5B working/master gage

  • Type: LP / Line Pipe
  • Size: 4
  • TPI: 8
  • TPF: 3/4
  • Taper: 1:16

Out Diameter:101.60  Pitch Diameter: 111.433  L1=21.44  L4=44.04  S=9.525+/-2.540

Each 4″ LP / Line pipe API thread gage 100% calibrated with quality assurance.

 LP 4″ API thread gauge calibration certificate

If needed, one long form calibration certificate from professional third party testing lab can be supplied. These calibration certificates need extra cost, if clients need them,please tell in advance.

About us

We are a professional API thread gauges supplier, we can provide API Spec 5B thread gages (CSG, LCSG, BTC/BCSG, TBG/NUE, UP/EUE, LP), API Spec 7-2 thread gauges (NC, REG, FH, IF).

Worldwide shipment , usually taking 3-4 days clients can receive goods.

Check the full range of API thread gauges 


We accept payment of T/T(bank transfer), Paypal, Credit Cards, and West Union etc.

4 LP API thread gauge4" Line Pipe Ring Plug Gage