Material certificate for every lot; on request, 3.2 certificate under an independent inspector and special test reports.
3.1 certificate included
In structural and safety-critical applications, the fastener's certificate matters as much as the product itself. Thanks to lot-level records, raw material and test results can be reached within minutes.
Documents provided
- EN 10204 3.1 material certificate (standard)
- EN 10204 3.2 certificate (witnessed by TÜV / Bureau Veritas)
- Coating thickness and salt spray reports
- Friction coefficient (K factor) test (EN 14399-2)
- REACH, RoHS and conflict-minerals declarations
You can download your certificates by lot number from the lookup tool on our site.
Scope of service
- 3.1 certificate for every lot
- 3.2 with independent inspector
- Salt spray and coating report
- Online lot lookup
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Frequently asked questions
What is the difference between DIN and ISO standards?
Older German standards such as DIN 933 and DIN 931 have largely been replaced by ISO 4017 and ISO 4014. Most dimensions are the same; for M10 and M12 the wrench size is 17/19 mm in DIN and 16/18 mm in ISO. State the standard clearly when ordering.
What do 8.8 and 10.9 mean?
The first number is tensile strength divided by 100 (8 → 800 MPa), the second the yield/tensile ratio (0.8 → 640 MPa yield). 10.9: 1,000 MPa tensile, 900 MPa yield; 12.9: 1,200 MPa tensile, 1,080 MPa yield.
Which coating should I choose?
For indoor use, electro-galvanizing (5-12 µm); for outdoor and steel construction, hot-dip galvanizing; for high-strength (10.9 / 12.9) and corrosion-resistant applications, Geomet. Electrolytic coating carries a hydrogen embrittlement risk for 10.9 and above.
Is there a minimum order quantity?
Catalog products are sold by carton (usually 100-1,000 pieces). The minimum batch for special manufacturing is 5,000 pieces. Minimum purchase terms for dealers vary by tier.
How do I get certificates?
An EN 10204 3.1 certificate is issued for every lot. Enter the lot number on the product label into the certificate lookup tool on our site to download the PDF report. For 3.2, you must request it with the order.