Keep a record linking each project fastener kit to its component lots, then preserve that link on the packaging that reaches the installer. A carton marked only with a project name is difficult to investigate after contents are split between work areas. Define the label fields, repacking records and discrepancy process in the purchase order before dispatch. This guide offers a buyer-designed workflow, not a claim about an existing Dashitou quality system or certification.
Start with the unit people actually handle
A shipment may arrive as separate bulk boxes, pre-counted bolt assemblies or installation kits for one drawing detail. Decide which unit needs an identity at receiving and which unit remains identifiable on site. A pallet reference alone may cease to help when cartons are unloaded into different stores. An outer carton label alone may cease to help when loose pieces move into an unmarked bin.
ISO 16426 describes a quality assurance framework for fastener manufacturers and distributors spanning raw material receipt through delivery. Its public summary is useful context, but it does not by itself prescribe this article's label template or prove that a particular supplier complies. The fields below are purchasing proposals to agree with your supplier and project quality team.
A packing matrix that distinguishes part identity from lot identity
| Record field | Why it matters | Proposed check |
|---|---|---|
| Part number and drawing revision | Identifies the ordered configuration | Matches purchase order line |
| Component description | Separates bolt, nut and washer records | Matches approved bill of materials |
| Supplier component lot reference | Links the delivered component to its records | Readable and consistent with documents supplied |
| Kit or packing record | Links multiple component identities | Retrieves the relevant component entries |
| Quantity and carton number | Supports count reconciliation | Agrees with packing list |
| Destination or work package | Routes the kit to the intended location | Matches project allocation |
A part number can remain the same across several production lots. Conversely, a kit containing a bolt, nut and washer may need several component lot references. Avoid treating one convenient kit number as proof that all components share the same manufacturing lot or heat. Material heat references and finished component lot references should be linked only where actual records support that link.
Work through a split-carton example
Consider a hypothetical packing order of 120 kits for detail D-07, revision C. The agreed bill of materials calls for one bolt, one nut and two washers per kit. A counting worksheet therefore expects 120 bolts, 120 nuts and 240 washers, divided into four cartons of 30 kits. These figures describe an invented logistics example, not a supplied order or an approved structural assembly.
If one bolt lot is exhausted after 75 kits, the remaining 45 kits use another lot. Preserve the original lot identities and record which kits or separately identified packs contain each lot. Do not relabel the two bolt lots as one manufacturing lot. The quality team should decide whether the purchase order permits this allocation and whether the packaging separation is adequate before shipment.
Use a receiving hold point for mismatches
- Compare the carton identity and quantities with the purchase order and packing list before distributing contents.
- Check that specified component markings and documentary references agree with the ordered system. Markings alone do not replace all required documents.
- Photograph labels and record any broken, missing or unreadable identification.
- Segregate discrepant or unidentified material; request clarification without mixing it into accepted stock.
- When repacking accepted material, carry the identity forward and record the source-to-destination link.
Counting and identity checks do not establish material properties, coating performance or structural suitability. Keep the project's specified inspection and acceptance procedures separate. A tidy label is useful for retrieving evidence, not a substitute for evidence.
Frequently asked questions
Does one carton need exactly one component lot?
That depends on the agreed packaging and project requirements. Where more than one lot is permitted, the records and physical identification must still let the receiving team distinguish them.
Is a QR code enough?
Only if the linked record is accessible, retained and correct. Agree a readable fallback reference so a damaged code or unavailable network does not remove identification.
Can a distributor create a new packing number?
A distributor can use an internal packing reference, but it should preserve the link to original component identities rather than imply a new manufacturing lot.
What happens to unused pieces returned from site?
Keep positively identified returns separate from unknown stock. Do not infer a missing lot from appearance; follow the agreed disposition procedure.
Agree the packing record before the order
Include your bill of materials, destination split, label fields, document requirements and handling rules in the project RFQ. The RFQ checklist helps organize the commercial inputs, while drawing handoff helps keep revisions clear. Ask Dashitou to confirm the proposed packing and record scope for the actual enquiry; this article does not promise universal traceability services.