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 | 8,853,853 |
| Germany | 8,226,233 |
| Sweden | 5,045,612 |
| China | 2,734,242 |
| France | 2,333,176 |
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 | 4,678,419 | 4,175,434 | -502,985 |
| Germany | 3,718,615 | 4,507,618 | +789,003 |
| Sweden | 2,556,756 | 2,488,856 | -67,900 |
| China | 1,414,122 | 1,320,120 | -94,002 |
| France | 988,437 | 1,344,739 | +356,302 |
| Ireland | 885,249 | 975,700 | +90,451 |
| Italy | 437,017 | 354,464 | -82,553 |
| Netherlands | 550,908 | 239,227 | -311,681 |
| Japan | 266,613 | 319,781 | +53,168 |
| Poland | 333,655 | 249,168 | -84,487 |
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 | 7,750,521 |
| Germany | 7,135,874 |
| Sweden | 4,954,678 |
| China | 4,953,251 |
| France | 1,762,217 |
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 | 4,048,233 | 3,702,288 | -345,945 |
| Germany | 3,190,532 | 3,945,342 | +754,810 |
| Sweden | 2,649,571 | 2,305,107 | -344,464 |
| China | 2,421,960 | 2,531,291 | +109,331 |
| France | 908,810 | 853,407 | -55,403 |
| Italy | 596,946 | 597,081 | +135 |
| India | 306,554 | 613,510 | +306,956 |
| Japan | 291,877 | 343,108 | +51,231 |
| Poland | 336,412 | 237,860 | -98,552 |
| United Kingdom | 286,397 | 278,645 | -7,752 |
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 | 57 |
| West Midlands | 55 |
| Inner London - West | 36 |
| Greater Manchester | 34 |
| 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 | 39 | 41 | +2 |
| West Midlands | 47 | 38 | -9 |
| Inner London - West | 18 | 26 | +8 |
| Greater Manchester | 23 | 24 | +1 |
| Surrey, East and West Sussex | 23 | 22 | -1 |
| Shropshire and Staffordshire | 18 | 21 | +3 |
| Bedfordshire and Hertfordshire | 19 | 15 | -4 |
| Derbyshire and Nottinghamshire | 21 | 18 | -3 |
| Herefordshire, Worcestershire and Warwickshire | 22 | 15 | -7 |
| Hampshire and Isle of Wight | 19 | 9 | -10 |
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 | 17,837,058 |
| Sea transport (not vehicle on ferry) | 7,945,662 |
| Roll on Roll off (RORO) | 7,538,561 |
| Other | 2,030,183 |
| Road transport | 106,130 |
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 | 8,920,632 | 8,916,426 | -4,206 |
| Sea transport (not vehicle on ferry) | 4,205,914 | 3,739,748 | -466,166 |
| Roll on Roll off (RORO) | 3,656,938 | 3,881,623 | +224,685 |
| Other | 1,016,156 | 1,014,027 | -2,129 |
| Road transport | 33,465 | 72,665 | +39,200 |
Import volume by port
What this shows: Import value handled by each UK port.
Top 5 values
| Port | £ |
|---|---|
| East Midlands Airport | 4,749,113 |
| Birmingham Airport | 3,928,052 |
| Dover | 3,854,169 |
| London Heathrow Airport | 3,294,612 |
| Thamesport | 2,580,088 |
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 | 1,352,203 | 3,396,910 | +2,044,707 |
| Birmingham Airport | 2,024,056 | 1,903,996 | -120,060 |
| Dover | 1,807,047 | 2,047,122 | +240,075 |
| London Heathrow Airport | 1,527,641 | 1,766,971 | +239,330 |
| Thamesport | 1,349,353 | 1,230,735 | -118,618 |
| Glasgow Airport | 1,932,346 | 561,880 | -1,370,466 |
| London Stansted Airport | 1,102,002 | 1,054,416 | -47,586 |
| Felixstowe | 1,408,227 | 710,964 | -697,263 |
| 000 | 1,016,156 | 1,014,027 | -2,129 |
| Eurotunnel | 728,744 | 947,431 | +218,687 |
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
|
119 |
|
Manufacture of machinery and equipment n.e.c.
|
79 |
|
Manufacture of fabricated metal products, except machinery and equipment
|
62 |
|
Repair and installation of machinery and equipment
|
59 |
|
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+ | 338 |
| 1m-15m | 195 |
| 15m-54m | 61 |
| Other | 52 |
| 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 | 14,208,194 |
| Canada | 4,762,640 |
| United States | 3,735,965 |
| Saudi Arabia | 3,225,594 |
| Netherlands | 2,026,453 |
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 | 12,342,908 | 1,865,286 | -10,477,622 |
| Canada | 2,082,690 | 2,679,950 | +597,260 |
| United States | 2,011,603 | 1,724,362 | -287,241 |
| Saudi Arabia | 1,818,173 | 1,407,421 | -410,752 |
| Netherlands | 957,486 | 1,068,967 | +111,481 |
| France | 886,794 | 555,865 | -330,929 |
| Ireland | 529,490 | 905,863 | +376,373 |
| China | 524,374 | 586,505 | +62,131 |
| India | 468,695 | 530,858 | +62,163 |
| China, Hong Kong Special Administrative Region | 430,178 | 566,866 | +136,688 |
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 | 478,010 |
| XI | 247,064 |
| Germany | 76,222 |
| Nicaragua | 29,914 |
| China | 7,884 |
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 | 97,644 | 380,366 | +282,722 |
| XI | 191,181 | 55,883 | -135,298 |
| Germany | 70,813 | 5,409 | -65,404 |
| Nicaragua | 13,804 | 16,110 | +2,306 |
| China | 1,766 | 6,118 | +4,352 |
| United States | 3,531 | 4,268 | +737 |
| Italy | 4,306 | 181 | -4,125 |
| India | 2,875 | 366 | -2,509 |
| Sweden | 55 | 826 | +771 |
| Viet Nam | 286 | 575 | +289 |
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 | 22,938,603 |
| Roll on Roll off (RORO) | 18,594,935 |
| Sea transport (not vehicle on ferry) | 1,954,709 |
| Other | 863,308 |
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 | 11,839,171 | 11,099,432 | -739,739 |
| Roll on Roll off (RORO) | 14,190,595 | 4,404,340 | -9,786,255 |
| Sea transport (not vehicle on ferry) | 1,188,655 | 766,054 | -422,601 |
| Other | 387,942 | 475,366 | +87,424 |
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 | 8,085,367 |
| Dover / Eurotunnel | 6,949,796 |
| East Midlands Airport | 6,787,170 |
| Warton Aerodrome | 2,565,794 |
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 | 10,426,689 | 9,573 | -10,417,116 |
| London Heathrow Airport | 3,985,291 | 4,100,076 | +114,785 |
| Dover / Eurotunnel | 3,307,028 | 3,642,768 | +335,740 |
| East Midlands Airport | 3,292,925 | 3,494,245 | +201,320 |
| Warton Aerodrome | 1,393,898 | 1,171,896 | -222,002 |
| ZLC | 1,116,259 | 870,435 | -245,824 |
| London Stansted Airport | 1,029,912 | 948,022 | -81,890 |
| London Gateway Port | 581,578 | 351,421 | -230,157 |
| 000 | 387,942 | 475,366 | +87,424 |
| Immingham Docks | 460,916 | 320,998 | -139,918 |
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