REACH Compliance for Head Bolt Set: Buyer Checklist
Sourcing a head bolt set for the EU, UK, US, Canada, Australia, or Brazil means checking more than thread, length, and strength class. For REACH compliance for head bolt set procurement, buyers need a current substance declaration, coating information, and lot-level traceability that shows whether any SVHC is present in the article, finish, lubricant, or packaging. That requirement is separate from dimensional fit, which still has to match the OE application and gasket stack-up. Driventus is an independent aftermarket manufacturer; brand names are referenced for fitment only. This matters because fasteners can carry zinc flake, phosphate, anti-corrosion oils, or pre-applied patches, and those items can change the declaration scope. The checks below show what procurement teams should verify before sampling, approval, or repeat ordering.
What REACH covers on a fastener set
A head bolt is an article, but the sourcing decision still has a chemical compliance layer. Under REACH (EC) No 1907/2006, the buyer must know whether any substance on the Candidate List is present above the reporting threshold in the bolt, washer, coating, lubricant, or packaging.
For this part family, the highest-risk items are usually not the base steel. They are the finish and preservation system: zinc flake, phosphate and oil, black oxide, anti-seize residues, rust preventives, thread patches, and packaging materials. If the set includes washers, each component should be covered in the same declaration. A generic statement that says only "compliant" is not enough for a regulated procurement file.
An OE cross-reference confirms fitment only. It is not a vehicle manufacturer approval, endorsement, or warranty claim. If the supplier cannot show what the set contains, where it was made, and which lot it came from, the part is not ready for EU-facing release.
What buyers should verify before sample approval
Use the checklist below before you release a sample or a production PO.
| Item | What to verify | Why it matters |
|---|---|---|
| Base material | steel grade, heat treatment route, tensile class | confirms clamp load and yield margin |
| Thread and length | pitch, under-head length, shank diameter, head style | avoids gasket, block, and tool mismatch |
| Surface finish | zinc flake, phosphate, oil, black oxide, passivation | finish can change the declaration scope |
| Lubricant / patch | pre-applied threadlocker, dry film, anti-friction coat | may introduce restricted substances |
| Packaging | VCI bag, desiccant, rust inhibitor, carton inks | packaging can also require disclosure |
| Traceability | lot code, pack ID, production date, batch link | supports recall and complaint control |
