Neck Finish Dimensions

“I” dimensions

The inner diameter of the bottle neck. Specifications require a minimum “I” to allow sufficient clearance for filling tubes. Linerless closures, with plugs and fitment require a controlled “I” dimension for a proper fit.

“T” dimensions

The outside diameter of the thread. The tolerance range of the “T” dimension will determine the mate between bottle and closure.

“E” dimensions

The outside diameter of the neck. The difference between the “E” and “T” dimensions divided by two determines the thread depth.

“H” dimensions

The height of the neck finish. Measured from the top of the neck to the point where the diameter “T” extends down, intersecting the shoulder.

“S” dimensions

Measured from the top of the finish to the top edge of the first thread. The “S” dimension is the key factor which determines the orientation of the closure to the bottle and the amount of thread engaged between bottle and cap.


Imperial to Canadian U.S. to Canadian
1oz. 28.41mL 10z. 29.57mL
8oz. 227.28mL 8oz. 236.59mL
16oz. 454.56mL 16oz. 473.18mL
32oz. 909.12mL 32oz. 946.36mL
1 Gallon 4545.60mL 1 Gallon 3785.47mL
Canadian to Imperial Canadian to U.S.
125mL 4.40oz. 125mL 4.23oz.
250mL 17.59oz. 250mL 8.45oz.
500mL 17.59oz. 500mL 16.90oz.
1L 35.19oz. 4L 140.79oz.
4L 140.79oz. 4L 135.25oz.
All measurements are based on water specific gravity = 1 (Approx.) Temperature conversions (>0) From Fahrenheit to Celcius = (F – 32) x 0.55 From Celcius to Fahrenheit = (C x 1.8) + 32 1in = 2.54cm or 25.4mm = 100mm = 3.937in 1 kg = 2.20 lbs

Recycling Symbols

1 = PETE (polyethylene terephthalate) (PET) 2 = HDPE (high density polyethylene) 3 = V (vinyl/polyvinyl chloride PVC) 4 = LDPE (low density polyethylene) 5 = PP (polypropylene) 6 = PS (polystyrene) 7 = other
Copyright © 2019 Richards Packaging, Inc. All rights reserved.