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All 2,885 pages we have written →
The lot

Mixing breaks it

On this page14
Two lots in one jar are not one lot.

The act is pouring

A bag of the same part number from a different heat, into a jar that already holds some. No tool and no modification.

And the result is not a defect

Every fastener in the jar is exactly what it was. The quantity is simply no longer a lot as the Act defines one.

Which is the shape this library keeps finding

The travel medication property finds a dispensed label left behind on a bottle. The home preserving property finds a code that has to be permanent.

All three are traceability rather than quality

The object is fine and the chain of information about it is broken.

And a container is the usual instrument

Because a container is where things get combined, and combining is what breaks a provenance claim.

The heat number lives on the packaging you discard

Which is the practical trap. A bag or a box carries the number and the jar it is decanted into does not.

So the decanting step is the information loss

Exactly as it is for a dispensed prescription, and for the same reason: the data was on the package rather than in the product.

Which is why the Act defines the lot rather than the fastener

A fastener can be measured and tested. A lot is a fact about history and has to be carried.

Our containers carry nothing

No lot field, no heat number, no coil reference, no production date. The jar is a jar.

And no marking service

The electrical property establishes the same absence: we publish no marking, printing, labelling or coding service on any shelf.

So the discipline is entirely on the buyer's side

One lot per container, labelled at fill time, before the bag is thrown away.

Which costs a pen and a label

And is the only thing standing between a sorted jar and an untraceable one.

Nothing here says what follows from breaking a lot

What the Act requires of whom is not described on these pages. The definition is.

References

15 U.S.C. 5402(10) defines a lot as "a quantity of fasteners of one part number fabricated by the same production process from the same coil or heat number of metal as provided by the metal manufacturer". law.cornell.edu
The Davis Pack Supply catalog, measured 19 October 2026 across the 251 containers on this shelf. The specification labels we publish and their coverage: Material on 251 of 251, Color on 251, Capacity on 251, Temperature range on 251, Case pack on 250, Height on 237, Neck finish on 232, Recyclable on 117, Width on 18, and Liner on 1. None of the ten is a lot number: there is no lot, heat number, coil reference or production date anywhere in our data, for the container or for anything in it. We identify a product by a dc sku and a case pack.
Written from 15 U.S.C. 5402 and from the catalog as it stood on 19 October 2026. These are definitions from the Fastener Quality Act and nothing here describes what the Act requires of anyone, the inspection or certification scheme, the exemptions, or which consensus standards are involved. Nothing determines whether any article is a fastener within the definition or whether any quantity is a lot. We publish no lot number, heat number, coil reference or production date anywhere in our data. This shelf is shared identically by nine groups and the sewing notions property enumerates the inventory.