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 | 8,457,508 |
| Germany | 7,833,923 |
| Sweden | 4,852,229 |
| China | 2,674,403 |
| France | 2,276,052 |
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 | 4,693,935 | 3,763,573 | -930,362 |
| Germany | 3,590,879 | 4,243,044 | +652,165 |
| Sweden | 2,561,951 | 2,290,278 | -271,673 |
| China | 1,414,469 | 1,259,934 | -154,535 |
| France | 987,454 | 1,288,598 | +301,144 |
| Ireland | 886,368 | 885,068 | -1,300 |
| Netherlands | 548,490 | 223,813 | -324,677 |
| Italy | 413,269 | 343,083 | -70,186 |
| Japan | 262,611 | 307,623 | +45,012 |
| Poland | 339,339 | 213,303 | -126,036 |
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 | 7,317,539 |
| Germany | 6,782,453 |
| China | 4,871,369 |
| Sweden | 4,754,126 |
| France | 1,718,290 |
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 | 3,914,983 | 3,402,556 | -512,427 |
| Germany | 3,063,814 | 3,718,639 | +654,825 |
| China | 2,531,137 | 2,340,232 | -190,905 |
| Sweden | 2,649,451 | 2,104,675 | -544,776 |
| France | 892,846 | 825,444 | -67,402 |
| Italy | 588,289 | 561,028 | -27,261 |
| India | 356,937 | 553,715 | +196,778 |
| Japan | 288,761 | 330,064 | +41,303 |
| Poland | 344,277 | 198,770 | -145,507 |
| United Kingdom | 274,827 | 259,439 | -15,388 |
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 | 55 |
| West Midlands | 55 |
| Inner London - West | 35 |
| Greater Manchester | 33 |
| Surrey, East and West Sussex | 31 |
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 | 40 | +0 |
| West Midlands | 48 | 36 | -12 |
| Inner London - West | 18 | 25 | +7 |
| Greater Manchester | 23 | 23 | +0 |
| Surrey, East and West Sussex | 22 | 22 | +0 |
| Shropshire and Staffordshire | 20 | 19 | -1 |
| Bedfordshire and Hertfordshire | 20 | 14 | -6 |
| Derbyshire and Nottinghamshire | 20 | 18 | -2 |
| Herefordshire, Worcestershire and Warwickshire | 21 | 14 | -7 |
| Leicestershire, Rutland and Northamptonshire | 15 | 12 | -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 | 17,065,719 |
| Sea transport (not vehicle on ferry) | 7,703,082 |
| Roll on Roll off (RORO) | 7,197,009 |
| Other | 1,934,071 |
| Road transport | 101,019 |
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 | 8,807,670 | 8,258,049 | -549,621 |
| Sea transport (not vehicle on ferry) | 4,264,277 | 3,438,805 | -825,472 |
| Roll on Roll off (RORO) | 3,562,500 | 3,634,509 | +72,009 |
| Other | 1,015,604 | 918,467 | -97,137 |
| Road transport | 32,958 | 68,061 | +35,103 |
Import volume by port
What this shows: Import value handled by each UK port.
Top 5 values
| Port | £ |
|---|---|
| East Midlands Airport | 4,629,054 |
| Dover | 3,733,421 |
| Birmingham Airport | 3,720,972 |
| London Heathrow Airport | 3,139,648 |
| Thamesport | 2,496,035 |
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 | 1,350,604 | 3,278,450 | +1,927,846 |
| Dover | 1,807,840 | 1,925,581 | +117,741 |
| Birmingham Airport | 1,995,060 | 1,725,912 | -269,148 |
| London Heathrow Airport | 1,459,290 | 1,680,358 | +221,068 |
| Thamesport | 1,369,802 | 1,126,233 | -243,569 |
| Glasgow Airport | 1,991,051 | 360,234 | -1,630,817 |
| London Stansted Airport | 1,107,415 | 1,002,938 | -104,477 |
| Felixstowe | 1,381,898 | 663,294 | -718,604 |
| 000 | 1,015,604 | 918,467 | -97,137 |
| Eurotunnel | 678,474 | 879,252 | +200,778 |
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.
|
76 |
|
Manufacture of fabricated metal products, except machinery and equipment
|
60 |
|
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 |
|---|---|
| 2026-05 | 99 |
| 2026-04 | 117 |
| 2026-03 | 108 |
| 2026-02 | 123 |
| 2026-01 | 113 |
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 | 112 |
| T.R. FASTENINGS LIMITED | 107 |
| HEXSTONE LTD. | 103 |
| INTRALOX LIMITED | 103 |
| APEX STAINLESS FASTENERS LIMITED | 101 |
| GE CALEDONIAN LIMITED | 98 |
| GE AIRCRAFT ENGINE SERVICES LIMITED | 87 |
| SCHLUMBERGER OILFIELD UK LIMITED | 81 |
| MEGGITT AEROSPACE LIMITED | 80 |
| CATERPILLAR (NI) LIMITED | 76 |
Importer company size by revenue band
What this shows: Distribution of importers across company revenue bands.
Top 5 values
| Revenue | Companies |
|---|---|
| 54m+ | 332 |
| 1m-15m | 188 |
| 15m-54m | 59 |
| Other | 49 |
| 0-1m | 17 |
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 | 14,062,439 |
| Canada | 4,694,306 |
| United States | 3,551,324 |
| Saudi Arabia | 3,120,333 |
| Netherlands | 2,003,190 |
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 | 12,289,960 | 1,772,479 | -10,517,481 |
| Canada | 2,089,644 | 2,604,662 | +515,018 |
| United States | 2,009,744 | 1,541,580 | -468,164 |
| Saudi Arabia | 1,729,900 | 1,390,433 | -339,467 |
| Netherlands | 1,002,335 | 1,000,855 | -1,480 |
| Ireland | 517,881 | 852,867 | +334,986 |
| France | 812,582 | 498,627 | -313,955 |
| China | 497,644 | 554,591 | +56,947 |
| India | 456,786 | 520,702 | +63,916 |
| China, Hong Kong Special Administrative Region | 416,624 | 544,630 | +128,006 |
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 | 464,929 |
| XI | 226,430 |
| Germany | 60,873 |
| Nicaragua | 28,942 |
| United States | 7,719 |
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 | 100,892 | 364,037 | +263,145 |
| XI | 176,198 | 50,232 | -125,966 |
| Germany | 55,790 | 5,083 | -50,707 |
| Nicaragua | 12,931 | 16,011 | +3,080 |
| United States | 4,734 | 2,985 | -1,749 |
| China | 1,701 | 6,010 | +4,309 |
| Italy | 4,225 | 181 | -4,044 |
| India | 2,554 | 366 | -2,188 |
| Sweden | 46 | 826 | +780 |
| Viet Nam | 290 | 566 | +276 |
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 | 22,039,646 |
| Roll on Roll off (RORO) | 18,266,944 |
| Sea transport (not vehicle on ferry) | 1,771,786 |
| Other | 812,497 |
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 | 11,525,981 | 10,513,665 | -1,012,316 |
| Roll on Roll off (RORO) | 14,204,419 | 4,062,525 | -10,141,894 |
| Sea transport (not vehicle on ferry) | 1,027,646 | 744,140 | -283,506 |
| Other | 361,052 | 451,445 | +90,393 |
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 | 7,818,553 |
| Dover / Eurotunnel | 6,694,669 |
| East Midlands Airport | 6,478,499 |
| Warton Aerodrome | 2,478,634 |
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 | 10,434,969 | 1,293 | -10,433,676 |
| London Heathrow Airport | 3,946,256 | 3,872,297 | -73,959 |
| Dover / Eurotunnel | 3,331,281 | 3,363,388 | +32,107 |
| East Midlands Airport | 3,152,345 | 3,326,154 | +173,809 |
| Warton Aerodrome | 1,306,738 | 1,171,896 | -134,842 |
| ZLC | 1,107,815 | 788,091 | -319,724 |
| London Stansted Airport | 1,003,752 | 871,525 | -132,227 |
| London Gateway Port | 490,714 | 341,682 | -149,032 |
| 000 | 361,052 | 451,445 | +90,393 |
| Manchester Airport | 363,319 | 338,777 | -24,542 |
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