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CBAM default values for CN 7318 from Mexico

Coach screws of iron or steel (iron and steel)

15 CN codes under this heading have their own EU default value for Mexico, with 4 different values. Codes with the same value share one cost table below.

EU default value

2.74 – 3.18

t CO2e per tonne, before mark-up

Used in 2026 (incl. 10% mark-up)

3.014 – 3.498

t CO2e per tonne

Buyer's cost per tonne, 2026 to 2034

€139 to €340

at €82.32/t CO2

Every CN code under 7318

CN codeDefault2026 incl. mark-upCost per tonne in 2026 at €82.32
7318 11 00Coach screws of iron or steelCompare countries2.743.014€139
7318 12 10Wood screws of stainless steel (excl. coach screws)Compare countries3.183.498€195
7318 12 90Wood screws of iron or steel other than stainless (excl. coach screws)Compare countries2.743.014€139
7318 13 00Screw hooks and screw rings, of iron or steelCompare countries2.743.014€139
7318 14 10Self-tapping screws, of stainless steel (excl. wood screws)Compare countries3.183.498€195
7318 14 91Spaced-thread screws of iron or steel other than stainlessCompare countries2.743.014€139
7318 14 99Self-tapping screws of iron or steel other than stainless (excl. spaced-thread screws and wood screws)Compare countries2.743.014€139
7318 15Threaded screws and bolts, of iron or steel, whether or not with their nuts and washers (excl. coach screws and other wo...Compare countries2.93.19€153
7318 16Nuts of iron or steelCompare countries3.063.366€168
7318 19 00Threaded articles, of iron or steel, n.e.s.Compare countries2.743.014€139
7318 21 00Spring washers and other lock washers, of iron or steelCompare countries2.743.014€139
7318 22 00Washers of iron or steel (excl. spring washers and other lock washers)Compare countries2.743.014€139
7318 23 00Rivets of iron or steel (excl. tubular and bifurcated rivets for particular uses)Compare countries2.743.014€139
7318 24 00Cotters and cotter pins, of iron or steelCompare countries2.743.014€139
7318 29 00Non-threaded articles, of iron or steelCompare countries2.743.014€139

What it means for your EU buyer

When an EU importer brings in this product from Mexico without verified emissions data from the producer, it must use the EU default value above, plus a mark-up of 10% in 2026, 20% in 2027 and 30% from 2028. The free allocation deducted from the importer's obligation shrinks every year and ends in 2034, so the cost per tonne rises each year even though the default stays the same.

Default value 2.74 t CO2e/t: CN 7318 11 00, 7318 12 90, 7318 13 00, 7318 14 91, 7318 14 99, 7318 19 00, 7318 21 00, 7318 22 00, 7318 23 00, 7318 24 00, 7318 29 00

Buyer's cost per tonne by import year, CO2 at €82.32/t.
Import yearDefault incl. mark-upFree allocation deductedCertificates per tonneCost per tonne at €82.32
20263.014−1.3301.684€139
20273.288−1.2961.992€164
20283.562−1.2282.334€192
20293.562−1.0572.505€206
20303.562−0.7022.860€235
20313.562−0.5323.030€249
20323.562−0.3613.201€263
20333.562−0.1913.371€278
20343.5620.0003.562€293

Default value 3.18 t CO2e/t: CN 7318 12 10, 7318 14 10

Buyer's cost per tonne by import year, CO2 at €82.32/t.
Import yearDefault incl. mark-upFree allocation deductedCertificates per tonneCost per tonne at €82.32
20263.498−1.1252.373€195
20273.816−1.0962.720€224
20284.134−1.0043.130€258
20294.134−0.8653.269€269
20304.134−0.5753.559€293
20314.134−0.4353.699€304
20324.134−0.2963.838€316
20334.134−0.1563.978€327
20344.1340.0004.134€340

Default value 2.9 t CO2e/t: CN 7318 15

Buyer's cost per tonne by import year, CO2 at €82.32/t.
Import yearDefault incl. mark-upFree allocation deductedCertificates per tonneCost per tonne at €82.32
20263.190−1.3301.860€153
20273.480−1.2962.184€180
20283.770−1.2282.542€209
20293.770−1.0572.713€223
20303.770−0.7023.068€253
20313.770−0.5323.238€267
20323.770−0.3613.409€281
20333.770−0.1913.579€295
20343.7700.0003.770€310

Default value 3.06 t CO2e/t: CN 7318 16

Buyer's cost per tonne by import year, CO2 at €82.32/t.
Import yearDefault incl. mark-upFree allocation deductedCertificates per tonneCost per tonne at €82.32
20263.366−1.3302.036€168
20273.672−1.2962.376€196
20283.978−1.2282.750€226
20293.978−1.0572.921€240
20303.978−0.7023.276€270
20313.978−0.5323.446€284
20323.978−0.3613.617€298
20333.978−0.1913.787€312
20343.9780.0003.978€327
Calculate for your tonnage

How to report a lower figure

For iron, steel and aluminium goods only direct emissions count: the fuels burned in your plant and the embedded emissions of the steel or aluminium you buy in. Electricity is not counted. Many producers, especially processors that buy in their steel or aluminium, come in well below the default. Your actual figure can replace the default once an EU-accredited verifier has checked it.

Other products from Mexico

  • CN 2601 Agglomerated iron ores and concentrates (excl. roasted iron...
  • CN 7201 Pig iron and spiegeleisen, in pigs, blocks or other primary...
  • CN 7202 Ferro-manganese, containing by weight > 2% of carbon
  • CN 7203 Ferrous products obtained by direct reduction of iron ore...
  • CN 7205 Granules and powders of pig iron, spiegeleisen, iron or...
  • CN 7206 Ingots, of iron and non-alloy steel (excl. remelted scrap...
  • CN 7207 Semi-finished products, of non-alloy free-cutting steel...
  • CN 7208 Flat-rolled products of iron or non-alloy steel, of a width...
  • CN 7209 Flat-rolled products of iron or non-alloy steel, of a width...
  • CN 7210 Flat-rolled products of iron or non-alloy steel, of a width...
  • CN 7211 Flat-rolled products of iron or non-alloy steel, simply...
  • CN 7212 Flat-rolled products of iron or non-alloy steel, of a width...
  • CN 7213 Bars and rods of iron or non-alloy steel, hot-rolled, in...
  • CN 7214 Bars and rods, of iron or non-alloy steel, not further...
  • CN 7215 Bars and rods, of iron or non-alloy steel, cold-formed or...
  • CN 7216 Angles, shapes and sections of iron or non-alloy steel...
  • CN 7217 Wire of iron or non-alloy steel, in coils, not plated or...
  • CN 7218 Steel, stainless, in ingots and other primary forms (excl....
  • CN 7219 Flat-rolled products of stainless steel, of a width of >=...
  • CN 7220 Flat-rolled products of stainless steel, of a width of <...
  • CN 7221 Bars and rods of stainless steel, hot-rolled, in...
  • CN 7222 Bars and rods of stainless steel, only hot-rolled, only...
  • CN 7223 Wire of stainless steel, in coils (excl. bars and rods)
  • CN 7224 Steel, alloy, other than stainless, in ingots or other...
  • CN 7225 Flat-rolled products of silicon-electrical steel, of a...
  • CN 7226 Flat-rolled products of silicon-electrical steel, of a...
  • CN 7227 Bars and rods of alloy steel other than stainless...
  • CN 7228 Bars and rods of high-speed steel, not further worked than...
  • CN 7229 Wire of alloy steel other than stainless, in coils (excl....
  • CN 7301 Sheet piling of iron or steel, whether or not drilled...
  • CN 7302 Railway or tramway track construction material of iron or...
  • CN 7303 Tubes, pipes and hollow profiles, of cast iron
  • CN 7304 Line pipe of a kind used for oil or gas pipelines...
  • CN 7305 Tubes and pipes, having circular cross-sections and an...
  • CN 7306 Line pipe of a kind used for oil or gas pipelines, welded...
  • CN 7307 Tube or pipe fittings of non-malleable cast iron
  • CN 7308 Structures and parts of structures "e.g., bridges and...
  • CN 7309 Reservoirs, tanks, vats and similar containers, of iron or...
  • CN 7310 Tanks, casks, drums, cans, boxes and similar containers, of...
  • CN 7311 Containers of iron or steel, for compressed or liquefied...
  • CN 7326 Grinding balls and similar articles for mills, of iron or...

Default values: Implementing Regulation (EU) 2025/2621 Annex I/IV as corrected by (EU) 2026/1740 (Commission file v2, 6 Aug 2026). Benchmarks: Implementing Regulation (EU) 2025/2620, Annex section 5, Column B, every production route (Commission file v1, 6 Feb 2025). Cross-sectoral correction factor taken as 1; carbon prices paid outside the EU are not deducted. Indicative only, not legal or customs advice. See the disclaimer.