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 | 7,819,701 |
| Germany | 7,429,135 |
| Sweden | 4,472,754 |
| China | 2,360,676 |
| Ireland | 1,610,257 |
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 | 4,478,379 | 3,341,322 | -1,137,057 |
| Germany | 3,722,364 | 3,706,771 | -15,593 |
| Sweden | 2,340,502 | 2,132,252 | -208,250 |
| China | 1,300,788 | 1,059,888 | -240,900 |
| Ireland | 916,799 | 693,458 | -223,341 |
| France | 888,729 | 717,692 | -171,037 |
| Netherlands | 535,196 | 130,608 | -404,588 |
| Italy | 376,366 | 264,152 | -112,214 |
| Poland | 362,469 | 265,558 | -96,911 |
| Japan | 387,942 | 194,093 | -193,849 |
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 | 6,828,605 |
| Germany | 6,566,379 |
| Sweden | 4,402,874 |
| China | 4,223,749 |
| France | 1,403,790 |
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 | 4,053,415 | 2,775,190 | -1,278,225 |
| Germany | 3,333,901 | 3,232,478 | -101,423 |
| Sweden | 2,447,652 | 1,955,222 | -492,430 |
| China | 2,034,364 | 2,189,385 | +155,021 |
| France | 763,145 | 640,645 | -122,500 |
| Italy | 534,286 | 428,200 | -106,086 |
| Japan | 418,811 | 223,144 | -195,667 |
| Poland | 346,407 | 267,260 | -79,147 |
| India | 315,332 | 265,127 | -50,205 |
| United Kingdom | 275,734 | 207,631 | -68,103 |
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 | 53 |
| Surrey, East and West Sussex | 35 |
| Greater Manchester | 32 |
| Inner London - West | 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 | 39 | +0 |
| West Midlands | 47 | 34 | -13 |
| Surrey, East and West Sussex | 29 | 22 | -7 |
| Greater Manchester | 25 | 22 | -3 |
| Inner London - West | 15 | 24 | +9 |
| Bedfordshire and Hertfordshire | 18 | 17 | -1 |
| Shropshire and Staffordshire | 17 | 21 | +4 |
| Derbyshire and Nottinghamshire | 19 | 18 | -1 |
| Herefordshire, Worcestershire and Warwickshire | 21 | 15 | -6 |
| Hampshire and Isle of Wight | 19 | 12 | -7 |
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 | 15,245,660 |
| Sea transport (not vehicle on ferry) | 7,345,940 |
| Roll on Roll off (RORO) | 6,758,711 |
| Other | 1,879,839 |
| Road transport | 53,253 |
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 | 8,308,565 | 6,937,095 | -1,371,470 |
| Sea transport (not vehicle on ferry) | 4,235,080 | 3,110,860 | -1,124,220 |
| Roll on Roll off (RORO) | 3,438,273 | 3,320,438 | -117,835 |
| Other | 1,169,833 | 710,006 | -459,827 |
| Road transport | 23,586 | 29,667 | +6,081 |
Import volume by port
What this shows: Import value handled by each UK port.
Top 5 values
| Port | £ |
|---|---|
| East Midlands Airport | 3,637,052 |
| Birmingham Airport | 3,496,903 |
| Dover | 3,295,433 |
| Glasgow Airport | 2,681,127 |
| Thamesport | 2,449,252 |
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 | 1,349,829 | 2,287,223 | +937,394 |
| Birmingham Airport | 1,921,426 | 1,575,477 | -345,949 |
| Dover | 1,448,415 | 1,847,018 | +398,603 |
| Glasgow Airport | 1,537,785 | 1,143,342 | -394,443 |
| Thamesport | 1,431,057 | 1,018,195 | -412,862 |
| London Heathrow Airport | 1,584,810 | 757,859 | -826,951 |
| Felixstowe | 1,410,127 | 680,358 | -729,769 |
| 000 | 1,169,833 | 710,006 | -459,827 |
| London Stansted Airport | 997,099 | 867,292 | -129,807 |
| Eurotunnel | 863,855 | 831,834 | -32,021 |
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 | 124 |
| Manufacture of machinery and equipment n.e.c. | 73 |
| Manufacture of fabricated metal products, except machinery and equipment | 65 |
| Repair and installation of machinery and equipment | 52 |
| Other manufacturing | 37 |
Importer companies over time
What this shows: Monthly count of unique importing companies.
Latest 5
| Month | Companies |
|---|---|
| 2026-01 | 113 |
| 2025-11 | 117 |
| 2025-10 | 100 |
| 2025-09 | 102 |
| 2025-08 | 103 |
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 | 107 |
| INTRALOX LIMITED | 103 |
| T.R. FASTENINGS LIMITED | 102 |
| HEXSTONE LTD. | 100 |
| APEX STAINLESS FASTENERS LIMITED | 96 |
| GE CALEDONIAN LIMITED | 93 |
| GE AIRCRAFT ENGINE SERVICES LIMITED | 82 |
| SCHLUMBERGER OILFIELD UK LIMITED | 80 |
| MEGGITT AEROSPACE LIMITED | 76 |
| CATERPILLAR (NI) LIMITED | 73 |
Importer company size by revenue band
What this shows: Distribution of importers across company revenue bands.
Top 5 values
| Revenue | Companies |
|---|---|
| 54m+ | 327 |
| 1m-15m | 192 |
| 15m-54m | 60 |
| Other | 50 |
| 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 | 13,539,867 |
| Canada | 3,650,947 |
| United States | 3,385,485 |
| Saudi Arabia | 2,529,321 |
| Netherlands | 1,792,570 |
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 | 12,425,042 | 1,114,825 | -11,310,217 |
| Canada | 1,136,697 | 2,514,250 | +1,377,553 |
| United States | 1,850,351 | 1,535,134 | -315,217 |
| Saudi Arabia | 1,649,951 | 879,370 | -770,581 |
| Netherlands | 828,404 | 964,166 | +135,762 |
| France | 892,312 | 473,978 | -418,334 |
| Ireland | 677,016 | 569,800 | -107,216 |
| China | 424,711 | 518,308 | +93,597 |
| China, Hong Kong Special Administrative Region | 410,191 | 397,307 | -12,884 |
| India | 384,986 | 389,151 | +4,165 |
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 | £ |
|---|---|
| XI | 282,408 |
| Ireland | 273,001 |
| Germany | 129,479 |
| Nicaragua | 40,500 |
| India | 8,640 |
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 £ |
|---|---|---|---|
| XI | 200,878 | 81,530 | -119,348 |
| Ireland | 87,465 | 185,536 | +98,071 |
| Germany | 126,941 | 2,538 | -124,403 |
| Nicaragua | 39,555 | 945 | -38,610 |
| India | 8,377 | 263 | -8,114 |
| United States | 3,507 | 3,166 | -341 |
| China | 1,665 | 2,760 | +1,095 |
| Italy | 4,387 | 1 | -4,386 |
| Sweden | 54 | 756 | +702 |
| Viet Nam | 224 | 282 | +58 |
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 | 19,712,173 |
| Roll on Roll off (RORO) | 17,494,239 |
| Sea transport (not vehicle on ferry) | 1,906,976 |
| Other | 753,599 |
| Road transport | 76,590 |
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 | 10,590,957 | 9,121,216 | -1,469,741 |
| Roll on Roll off (RORO) | 14,261,970 | 3,232,269 | -11,029,701 |
| Sea transport (not vehicle on ferry) | 1,189,737 | 717,239 | -472,498 |
| Other | 474,797 | 278,802 | -195,995 |
| Road transport | 76,590 | 0 | -76,590 |
Export volume by port
What this shows: Export value handled by each UK port.
Top 5 values
| Port | £ |
|---|---|
| Hull | 10,438,764 |
| London Heathrow Airport | 6,711,773 |
| East Midlands Airport | 6,004,285 |
| Dover / Eurotunnel | 5,978,613 |
| ZLC | 1,961,563 |
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 | 10,428,564 | 10,200 | -10,418,364 |
| London Heathrow Airport | 3,113,060 | 3,598,713 | +485,653 |
| East Midlands Airport | 2,992,889 | 3,011,396 | +18,507 |
| Dover / Eurotunnel | 3,393,428 | 2,585,185 | -808,243 |
| ZLC | 1,330,601 | 630,962 | -699,639 |
| Warton Aerodrome | 1,314,012 | 517,153 | -796,859 |
| London Stansted Airport | 869,487 | 890,471 | +20,984 |
| London Gateway Port | 615,478 | 343,145 | -272,333 |
| Manchester Airport | 456,561 | 297,405 | -159,156 |
| 000 | 474,797 | 278,802 | -195,995 |
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