# How do the Carbon Border Adjustment Mechanism (CBAM) default values for threaded screws, bolts and nuts differ by country, and where does India sit?

Canonical: https://senseible.earth/answers/cbam-screws-and-bolts-default-value-by-country

In the Commission's default value file, threaded screws and bolts (Combined Nomenclature (CN) 7318 15) carry 5.720 tonnes of carbon dioxide equivalent (CO2e) per tonne for India. Only Indonesia (8.230) and China (6.375) are higher among 32 countries. Viet Nam is 2.750 and Taiwan 2.707.

## Threaded screws and bolts, country by country

Values are tonnes of CO2e per tonne of good, total column. The file shows direct emissions only for this code, with indirect emissions marked N/A (not applicable).

- Indonesia 8.230, the same as the Annex IV value for this code
- China 6.375
- India 5.720
- Türkiye 5.430
- Kazakhstan 5.180
- South Africa 4.030
- South Korea 3.474
- Russian Federation 3.210 and Ukraine 3.153
- Japan 2.800, Viet Nam 2.750, Taiwan 2.707, Thailand 2.408
- United States 2.580 and Brazil 2.560
- Philippines 1.370, the lowest of the 32
- Other countries and territories: 4.801

## Nuts under CN 7318 16 follow the same pattern

India is 5.140, third highest again, behind Indonesia at 8.540 and Kazakhstan at 5.180. China is 5.045, Thailand 4.449, Türkiye 3.790, Viet Nam 2.960, Taiwan 2.707 and the Philippines 1.370. Other countries and territories are 4.693 and Annex IV is 8.540.

## What the table does not tell you

- It gives no reason for a country's number. Its last column names route (C), carbon steel from blast furnace and basic oxygen furnace production, as the route that fixes the free allocation benchmark for India's row. That column does not explain the country value itself.
- Our reading: a country average says little about your own plant. A verified actual figure replaces it.
- Where the code is missing for a country, or shows a dash, the declarant uses the Other countries and territories table (Guidance No. 3, section 4.10).

## Mark-up on top

Guidance No. 3 says default values are increased by a mark-up of 10% in 2026, 20% in 2027 and 30% from 2028 onwards. Goods imported in 2026 take the 2026 mark-up.

## 20 tonnes of threaded bolts imported in 2026 on default values

- India: 5.720 x 1.10 = 6.292 per tonne; x 20 = 125.84 tonnes of CO2e
- Türkiye: 5.430 x 1.10 = 5.973 per tonne; x 20 = 119.46 tonnes
- Viet Nam: 2.750 x 1.10 = 3.025 per tonne; x 20 = 60.5 tonnes
- India against Viet Nam: 125.84 minus 60.5 = 65.34 tonnes more embedded emissions on the same load

Our arithmetic from the Commission's listed values and the 10% mark-up for 2026. It shows embedded emissions before the free allocation adjustment and before any carbon price paid abroad.

## What Senseible does here

Senseible reads fuel invoices and electricity bills into monthly records, which is the plant-side data behind an actual figure. It does not set default values, it is not a CBAM verifier and it does not file declarations.

- [CBAM default values for Indian fasteners](https://senseible.earth/answers/cbam-default-value-india-fasteners)
- [Screws and nuts made from bought rod](https://senseible.earth/answers/cbam-screws-nuts-worked-example)
- [Default value mark-up by year](https://senseible.earth/answers/cbam-default-value-mark-up-by-year)
- [Where to find the official default values](https://senseible.earth/answers/where-to-find-official-cbam-default-values)
- [CBAM for Indian exporters](https://senseible.earth/cbam)

Sources: [European Commission, CBAM default values for the definitive period (Excel, version 2 of 6 August 2026), country sheets, Other Countries and Territories and Annex IV; legally binding values are in Implementing Regulation (EU) 2026/1740 correcting (EU) 2025/2621](https://taxation-customs.ec.europa.eu/document/download/1c05d211-80cb-4aaa-8ef0-e08005a95d7e_en?filename=DV%20correcting%20act_final%20update_06.08.xlsx), [European Commission, Guidance No. 3, CBAM methods for the calculation of emissions embedded in goods (14 August 2026), section 4.10 on default values and mark-up](https://taxation-customs.ec.europa.eu/document/download/29b9eec7-1a4b-4eb6-ab85-96a0c9e35fd0_en?filename=Guidance%20No.%203%20-%20CBAM%20methods%20for%20the%20calculation%20of%20emissions%20embedded%20in%20goods.pdf)

Last reviewed 2026-11-06. Values are from version 2 of the Commission's file (6 August 2026). The Commission says the default values act will be revised in 2027 at the latest, so re-check each value before you quote it to a buyer.