Thread Inserts

Thread inserts & calibration plates are standard for the following threads and most are in stock:
60° M, MF, UNC, UNF, UNEF, UNS, 55° Whitworth, G, BSP, R, Rc, BSPT,
60° NPS, NPT, 30° Tr, 29° ACME, Stub Acme, 80° Pg, Buttress (all types), API, etc.

Digital caliper with insert holders and pressure device mounted

Special FMS caliper

Measuring external pitch diameter

Measuring internal pitch diameter

Inserts 24A & 25A for taper threads

Inserts for Buttress threads

FMS thread pitch
diameter inserts
& calibration plates

FMS sets supplied
in aluminium box

Taper threads R, Rc & NPT

Buttress Threads

API Threads

Measuring diameters
d1 and D on threads