In 2021, bhí 1-8 iarfhoinse allmhairí ó na Stáit Aontaithe: Taiwan, an tSín, an tSeapáin, an Ghearmáin, Ceanada, an Chóiré, an India, an Iodáil, Meicsiceo agus Vítneam, agus mórthír na Síne&na deich bhfoinse is mó allmhairí. Ina measc, 477517815 kg ó Taiwan, an tSín, cuntasaíocht do 41.29% d'allmhairiú dúntóirí sna Stáit Aontaithe, agus 299319673 kg ó mhórthír na Síne, cuntasaíocht do 25.89%.
Main categories of imported products: steel threaded fasteners (731815) with and without nuts and gaskets, steel threaded self tapping screws (731814) and steel threaded nuts (731816).
Allmhairítear dúntóirí go príomha isteach i Lár-Iarthar na Stát Aontaithe (Chicago, Illinois) agus Deisceart California (Los Angeles, California). Féadfaidh réigiún na n-allmhairí SAM a bheith bunaithe ar chúinsí eacnamaíocha nó straitéiseacha, nó féadfaidh sé coibhneasacht gheografach na n-allmhairí a léiriú. Tá roinnt déantúsóirí ceanglóir móra lonnaithe sa Bhruach Thiar agus sa Mheán-Iarthar, a mhíníonn freisin cén fáth a n-iompórtálann na bealaí isteach seo an líon is mó dúntóirí gach bliain. Is iad na táirgí ceanglóir seo a allmhairítear ó na Stáit Aontaithe ná cód custaim 731815 go príomha, agus 731814 agus 731816 ina dhiaidh sin. Is ionann na fothionscadail faoi chód 7318 agus thart ar 87% d'allmhairí ceanglóir iomlán na Stát Aontaithe sa chéad ocht mí de 2021.
However, the import of fasteners in the United States has not increased. The import volume and import volume have been flat since 2017. Overall, it is US $4.3 billion and 780 million kg per year. In 2020, the total amount decreased to USD 3.5 billion, and in the first eight months of 2021, the total amount increased to USD 2.7 billion and 4.8 million kg. The main export targets of fasteners in the United States are Mexico (28% in 2019) and Canada (59%).
Not surprisingly, the main areas of U.S. fastener exports are Laredo, Texas and Detroit, Michigan, both of which are very close to the Mexican Canadian border. The customs codes of fasteners exported are mainly 731815 and 731816. In the first eight months of 2021, 54% of 731815 products in the United States and only 7% of 731816 products were exported. In terms of fastener export, the product export of the United States belongs to the nature of domestic trade, that is, the trade between states. In 2020, about 84% of the total exports of the United States were regarded as domestic trade, and only 15% were international trade.
