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Heavy Duty Tie Down Buckle Specification Example for Dealership Service: Folding Type

Source:Tandem Trailer Axles / Time:2026-09-18

Heavy Duty Tie Down Buckle Specification Example for Dealership Service: Folding Type

This is a worked specification for heavy duty tie down buckle in a folding type programme. It is the document we would send a buyer who asks what exactly they are getting: the material, the dimensions that are actually controlled, the finish, and the checks that happen before anything is packed.

The folding type version exists because the duty cycle on dealership service is not the same as on a showroom vehicle. Where the two are specified identically, something fails later — usually packing that arrived crushed at the port.

Heavy Duty Tie Down Buckle

Example specification

ItemHeavy Duty Tie Down Buckle
ApplicationDealership Service
VersionFolding Type
Base materialBronze
Controlled dimensions6 key dimensions, recorded per lot
Tolerance band±0.05 mm
Finishanodised
MOQ200 pieces per specification
Sampling10 working days, 3 days per revision
ComplianceSAE J431

How the example is built up

  1. Start from the duty cycle, not from the catalogue photograph.
  2. Fix the base material in writing — Bronze, in this example.
  3. List the dimensions that are actually controlled and the tolerance on each.
  4. Name the finish and what it has to survive.
  5. State the inspection level and who pays when a lot fails.

Heavy Duty Tie Down Buckle example

Processes involved

  • gravity casting
  • electroplating
  • assembly line testing
  • anodising
  • surface grinding
  • die casting

Where this example applies

Programmes that run folding type most often specify this build for dealership service. Related applications include agricultural trailers, camper conversions, delivery vans, workshop replacements, export programmes.

Checks before packing

  • Dimensional report against the approved drawing.
  • AQL 1.5 sampling on the finished lot.
  • Finish inspection under agreed lighting.
  • Carton drop test on the first lot of a new packing specification.

Questions buyers ask

What testing is included?

Standard lots ship with dimensional and hardness reports. SAE J431 documentation is issued with the shipment when your market requires it.

Can the specification be held on file?

Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the SAE J431-compliant build instead of a fresh interpretation.

How long does sampling take?

Samples leave the factory in 10 working days, and each revision round adds about 3 days once you have seen the first piece.

What is the minimum order quantity?

The standard MOQ is 200 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.

Share a sample or a drawing and we will quote against a written specification, not against a photograph.

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