Containers

Closures

On this page11

What is here The liner is the product Which is why the 11 liners and sealing discs matter The phenolic caps Spouts and disc tops for dispensing Droppers for the drop products The 39 child resistant closures Buttress threads Necks to standardize on And a cap is a consumable References

373 continuous thread closures, and the liner is the variable nobody writes down.

What is here

373 continuous thread, 43 dropper assemblies, 39 child resistant, 36 disc top, 27 dome lids, 26 spouted, 19 flip top, 19 lug and twist, 14 phenolic, 11 liners and sealing discs, 9 specialty and 7 buttress.

The liner is the product

A cap holds the closure on and the liner holds the chemical in. Almost every evaporation and corrosion complaint in this property is a liner that was never specified.

Which is why the 11 liners and sealing discs matter

A small number against 639, and the one line item that says this catalog treats the liner as a thing you choose rather than a thing you receive.

The phenolic caps

14 of them, and phenolic is the traditional closure for a solvent because the material tolerates what polypropylene does not. A small set doing a specific job.

Spouts and disc tops for dispensing

26 spouted and 36 disc top, for oil onto a point and for a controlled squeeze. For a lubricant decant these two are most of the decision.

Droppers for the drop products

43 assemblies, matching the 20-410 and 24-410 necks that dominate the shelf. Right for flux and thread locker, with the bulb as the weak part.

The 39 child resistant closures

The archetype flags this craft child resistant, which is prudence for a shop chemical in a home garage rather than a requirement from this regulation. Specific substances have their own rules.

Buttress threads

7 of them, which belong on the larger containers. If you are going above a quart, the thread form is part of whether the closure seals at all.

Necks to standardize on

162 at 24-410, 96 at 20-410, 81 at 38-400. Building a shop around two necks means one set of spare caps instead of five.

And a cap is a consumable

Liners deform, threads strip and a reused cap seals worse every time. Buying closures with the bottles and replacing them is cheaper than the first spill.

References

The Davis Pack Supply catalog, measured 18 October 2026. The shop consumables shelf is 1,389 rows: 750 containers and 639 closures. 10 mL to 9,464 mL with a median of 120; 85 containers over a pint, 23 over a quart, 3 over a gallon and none over five gallons. 390 PET, 156 HDPE, 127 glass, 76 PP and 1 LDPE, and no metal containers or safety cans. Of the 127 glass containers, 6 are over a pint. 510 bottles, 219 jars, 16 tubs and pails, 4 jugs. 134 amber or dark amber. Closures: 373 continuous thread, 43 dropper assemblies, 39 child resistant, 36 disc top, 27 dome lids, 26 spouted, 19 flip top, 19 lug and twist, 14 phenolic, 7 buttress.

The archetype behind this shelf is ind-chemical: 100 to 20,000 mL, narrow mouth, HDPE and glass, light sensitive, child resistant, poured, with "chemical resistance is the entire decision, check the resin chart first" as its stated reason. All nine leaves sit on it, including the three that store dry consumable parts rather than a liquid.

Written from 29 CFR 1910.106(d)(2) and Table H-12, 29 CFR 1910.1200(f) and Appendix B Table B.6.1, and from the catalog as it stood on 18 October 2026. Nothing here establishes that a container is an approved container for flammable liquid storage, which is a word the regulation uses and our data does not support. Fire codes, state plans and insurers sit on top of all of this.