Physical Differences And Marking

LOCK-FIT Metric Fittings
Tee & Elbow (see Fig. 1)
Straight Connectors: (see Fig. 2)
Body: Stepped shoulder
Marked: LOCK-FIT 316
Nut: (see Figs.1 & 2) Stepped shoulder
marked: LOCK-FIT 316 6MM

Tee & Elbow: (See Fig. 3)
Straight Fittings: (see Fig. 4)
Body: Shoulder marked:
LOCK-FIT 316
Nut: (See Fig. 3 & 4): Shoulder marked
LOCK-FIT 316 1/2 T