Import/export HS code 731821: Spring washers and lock washers
Washers designed to prevent loosening, often used with screws and bolts
Why this is important if you are looking for potential customers in the UK:
- It helps you understand the market size for your product in the UK.
- It provides you with a list of potential leads who have bought similar products.
* UK only, last 24 months analysed
Imports by country
What this shows: Import market volume by exporter country into the UK.
Top 5 values
| Country | £ |
|---|---|
| United States | 8,732,466 |
| Germany | 8,220,762 |
| Sweden | 4,925,017 |
| China | 2,723,855 |
| France | 2,353,297 |
Countries rank shift: first 12 months vs second 12 months
What this shows: Countries are on both sides of the Sankey. Left side is sorted by first 12-month volume, right side by second 12-month volume, so rank changes are visible from line crossings.
Top 10 values
| Country | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| United States | 4,634,805 | 4,097,661 | -537,144 |
| Germany | 3,634,326 | 4,586,436 | +952,110 |
| Sweden | 2,503,748 | 2,421,269 | -82,479 |
| China | 1,305,883 | 1,417,972 | +112,089 |
| France | 1,015,873 | 1,337,424 | +321,551 |
| Ireland | 871,858 | 1,057,613 | +185,755 |
| Netherlands | 543,072 | 244,203 | -298,869 |
| Italy | 439,954 | 313,770 | -126,184 |
| Poland | 350,533 | 270,841 | -79,692 |
| Japan | 269,891 | 278,023 | +8,132 |
Imports by country of origin
What this shows: Import volume by production origin country. Differences from exporter-country data can indicate re-export routes.
Top 5 values
| Origin | £ |
|---|---|
| United States | 7,651,586 |
| Germany | 7,160,214 |
| China | 4,906,123 |
| Sweden | 4,864,411 |
| France | 1,771,535 |
Country of origin rank shift: first 12 months vs second 12 months
What this shows: Origin countries are on both sides of the Sankey. Left side is sorted by first 12-month import value, right side by second 12-month import value, so rank changes are visible from line crossings.
Top 10 values
| Origin | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| United States | 4,088,095 | 3,563,491 | -524,604 |
| Germany | 3,196,544 | 3,963,670 | +767,126 |
| China | 2,254,375 | 2,651,748 | +397,373 |
| Sweden | 2,615,168 | 2,249,243 | -365,925 |
| France | 872,011 | 899,524 | +27,513 |
| Italy | 611,852 | 568,235 | -43,617 |
| India | 300,992 | 633,015 | +332,023 |
| Poland | 341,271 | 262,094 | -79,177 |
| Japan | 295,350 | 296,231 | +881 |
| United Kingdom | 268,417 | 305,282 | +36,865 |
Importers across UK regions
What this shows: Number of importing companies by UK ITL2 region.
Top 5 values
| UK region | Companies |
|---|---|
| Berkshire, Buckinghamshire and Oxfordshire | 58 |
| West Midlands | 52 |
| Inner London - West | 37 |
| Greater Manchester | 34 |
| Surrey, East and West Sussex | 33 |
UK regions rank shift: first 12 months vs second 12 months
What this shows: UK regions are on both sides of the Sankey. Left side is sorted by first 12-month importer count, right side by second 12-month importer count, so rank changes are visible from line crossings.
Top 10 values
| UK region | First 12m | Second 12m | Delta |
|---|---|---|---|
| Berkshire, Buckinghamshire and Oxfordshire | 40 | 41 | +1 |
| West Midlands | 44 | 34 | -10 |
| Inner London - West | 16 | 29 | +13 |
| Greater Manchester | 22 | 23 | +1 |
| Surrey, East and West Sussex | 27 | 22 | -5 |
| Shropshire and Staffordshire | 17 | 21 | +4 |
| Bedfordshire and Hertfordshire | 20 | 15 | -5 |
| Derbyshire and Nottinghamshire | 20 | 17 | -3 |
| Herefordshire, Worcestershire and Warwickshire | 22 | 14 | -8 |
| Leicestershire, Rutland and Northamptonshire | 16 | 13 | -3 |
Import volume by transport
What this shows: Import value by transport mode used to bring goods into the UK.
Top 5 values
| Transport | £ |
|---|---|
| Air transport | 17,659,417 |
| Sea transport (not vehicle on ferry) | 7,907,749 |
| Roll on Roll off (RORO) | 7,537,658 |
| Other | 2,096,353 |
| Road transport | 93,896 |
Transport rank shift: first 12 months vs second 12 months
What this shows: Transport modes are on both sides of the Sankey. Left side is sorted by first 12-month import value, right side by second 12-month import value, so rank changes are visible from line crossings.
Top 10 values
| Transport | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| Air transport | 8,833,549 | 8,825,868 | -7,681 |
| Sea transport (not vehicle on ferry) | 4,136,588 | 3,771,161 | -365,427 |
| Roll on Roll off (RORO) | 3,598,756 | 3,938,902 | +340,146 |
| Other | 997,673 | 1,098,680 | +101,007 |
| Road transport | 33,465 | 60,431 | +26,966 |
Import volume by port
What this shows: Import value handled by each UK port.
Top 5 values
| Port | £ |
|---|---|
| East Midlands Airport | 4,619,597 |
| Birmingham Airport | 3,859,403 |
| Dover | 3,806,395 |
| London Heathrow Airport | 3,314,571 |
| Thamesport | 2,598,671 |
Port rank shift: first 12 months vs second 12 months
What this shows: Ports are on both sides of the Sankey. Left side is sorted by first 12-month import value, right side by second 12-month import value, so rank changes are visible from line crossings.
Top 10 values
| Port | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| East Midlands Airport | 1,322,791 | 3,296,806 | +1,974,015 |
| Birmingham Airport | 2,021,433 | 1,837,970 | -183,463 |
| Dover | 1,722,742 | 2,083,653 | +360,911 |
| London Heathrow Airport | 1,567,612 | 1,746,959 | +179,347 |
| Thamesport | 1,378,324 | 1,220,347 | -157,977 |
| Glasgow Airport | 1,827,526 | 739,623 | -1,087,903 |
| Felixstowe | 1,431,105 | 713,739 | -717,366 |
| 000 | 997,673 | 1,098,680 | +101,007 |
| London Stansted Airport | 1,113,550 | 930,365 | -183,185 |
| Eurotunnel | 761,034 | 934,646 | +173,612 |
Importer companies by SIC division
What this shows: Industry breakdown (SIC divisions) of importing companies.
Top 5 values
| SIC | Companies |
|---|---|
| Wholesale trade, except of motor vehicles and motorcycles | 117 |
| Manufacture of machinery and equipment n.e.c. | 81 |
| Manufacture of fabricated metal products, except machinery and equipment | 63 |
| Repair and installation of machinery and equipment | 58 |
| Other manufacturing | 36 |
Importer companies over time
What this shows: Monthly count of unique importing companies.
Latest 5
| Month | Companies |
|---|---|
| 2026-04 | 117 |
| 2026-03 | 108 |
| 2026-02 | 123 |
| 2026-01 | 113 |
| 2025-12 | 82 |
Top importers
What this shows: Companies with the highest number of months traded for this HS code.
| Company | Months traded |
|---|---|
| TOYOTA MOTOR MANUFACTURING (UK) LIMITED | 111 |
| T.R. FASTENINGS LIMITED | 106 |
| INTRALOX LIMITED | 103 |
| HEXSTONE LTD. | 102 |
| APEX STAINLESS FASTENERS LIMITED | 100 |
| GE CALEDONIAN LIMITED | 97 |
| GE AIRCRAFT ENGINE SERVICES LIMITED | 86 |
| SCHLUMBERGER OILFIELD UK LIMITED | 81 |
| MEGGITT AEROSPACE LIMITED | 79 |
| CATERPILLAR (NI) LIMITED | 75 |
Importer company size by revenue band
What this shows: Distribution of importers across company revenue bands.
Top 5 values
| Revenue | Companies |
|---|---|
| 54m+ | 337 |
| 1m-15m | 194 |
| 15m-54m | 60 |
| Other | 53 |
| 0-1m | 19 |
Import seasonality
What this shows: Average monthly import pattern from historical data.
Exports by country
What this shows: Export market volume by destination country from the UK.
Top 5 values
| Country | £ |
|---|---|
| Germany | 14,055,872 |
| Canada | 4,754,983 |
| United States | 3,654,362 |
| Saudi Arabia | 3,059,521 |
| Netherlands | 1,981,345 |
Export countries rank shift: first 12 months vs second 12 months
What this shows: Destination countries are on both sides of the Sankey. Left side is sorted by first 12-month export volume, right side by second 12-month export volume, so rank changes are visible from line crossings.
Top 10 values
| Country | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| Germany | 12,360,099 | 1,695,773 | -10,664,326 |
| Canada | 1,395,560 | 3,359,423 | +1,963,863 |
| United States | 1,951,105 | 1,703,257 | -247,848 |
| Saudi Arabia | 1,863,186 | 1,196,335 | -666,851 |
| Netherlands | 896,837 | 1,084,508 | +187,671 |
| Ireland | 521,207 | 935,290 | +414,083 |
| France | 916,238 | 466,452 | -449,786 |
| China | 534,337 | 448,723 | -85,614 |
| India | 439,991 | 537,698 | +97,707 |
| China, Hong Kong Special Administrative Region | 443,283 | 503,560 | +60,277 |
Exports by country of origin
What this shows: Export volume by production origin country. For re-exports, indicates where goods originated before UK export.
Top 5 values
| Origin | £ |
|---|---|
| Ireland | 463,106 |
| XI | 266,067 |
| Germany | 93,119 |
| Nicaragua | 15,599 |
| India | 8,157 |
Export origin countries rank shift: first 12 months vs second 12 months
What this shows: Origin countries are on both sides of the Sankey. Left side is sorted by first 12-month export value, right side by second 12-month export value, so rank changes are visible from line crossings.
Top 10 values
| Origin | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| Ireland | 87,389 | 375,717 | +288,328 |
| XI | 185,703 | 80,364 | -105,339 |
| Germany | 88,143 | 4,976 | -83,167 |
| Nicaragua | 14,909 | 690 | -14,219 |
| India | 7,803 | 354 | -7,449 |
| United States | 3,501 | 4,329 | +828 |
| China | 1,433 | 5,847 | +4,414 |
| Italy | 4,306 | 1 | -4,305 |
| Viet Nam | 298 | 572 | +274 |
| Sweden | 53 | 795 | +742 |
Export volume by transport
What this shows: Export value by transport mode used to ship goods from the UK.
Top 5 values
| Transport | £ |
|---|---|
| Air transport | 22,653,550 |
| Roll on Roll off (RORO) | 18,362,628 |
| Sea transport (not vehicle on ferry) | 1,937,979 |
| Other | 873,476 |
Export transport rank shift: first 12 months vs second 12 months
What this shows: Transport modes are on both sides of the Sankey. Left side is sorted by first 12-month export value, right side by second 12-month export value, so rank changes are visible from line crossings.
Top 10 values
| Transport | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| Air transport | 11,083,252 | 11,570,298 | +487,046 |
| Roll on Roll off (RORO) | 14,212,507 | 4,150,121 | -10,062,386 |
| Sea transport (not vehicle on ferry) | 1,176,689 | 761,290 | -415,399 |
| Other | 395,167 | 478,309 | +83,142 |
Export volume by port
What this shows: Export value handled by each UK port.
Top 5 values
| Port | £ |
|---|---|
| Hull | 10,436,262 |
| London Heathrow Airport | 8,026,236 |
| East Midlands Airport | 6,778,793 |
| Dover / Eurotunnel | 6,720,284 |
| Warton Aerodrome | 2,355,510 |
Export port rank shift: first 12 months vs second 12 months
What this shows: Ports are on both sides of the Sankey. Left side is sorted by first 12-month export value, right side by second 12-month export value, so rank changes are visible from line crossings.
Top 10 values
| Port | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| Hull | 10,424,769 | 11,493 | -10,413,276 |
| London Heathrow Airport | 3,461,929 | 4,564,307 | +1,102,378 |
| East Midlands Airport | 2,950,653 | 3,828,140 | +877,487 |
| Dover / Eurotunnel | 3,347,862 | 3,372,422 | +24,560 |
| Warton Aerodrome | 1,400,445 | 955,065 | -445,380 |
| ZLC | 1,225,142 | 800,648 | -424,494 |
| London Stansted Airport | 926,325 | 973,880 | +47,555 |
| London Gateway Port | 601,771 | 332,408 | -269,363 |
| 000 | 395,167 | 478,309 | +83,142 |
| Manchester Airport | 517,269 | 257,295 | -259,974 |
Quick facts
HS code: 731821
Coverage: United Kingdom, most metrics for the last 24 months
Description: Washers designed to prevent loosening, often used with screws and bolts