CN⇄US
731815 抗拉强度≥800兆帕,杆径>6mm的其他螺钉及螺栓
Other screws and bolts, whether or not with their nuts or washers:
🇨🇳 中国 4 个10位编码 🇺🇸 美国 33 个HTS编码
🔗 HS 编码前 6 位由世界海关组织（WCO）统一制定，全球通用； 第 7-10 位由各国自行细分。本页为同一 6 位编码下中美两国的完整税则对照。
🇨🇳 中国海关编码（10位）
🇺🇸 美国 HTSUS 编码
731815
Other screws and bolts, whether or not with their nuts or washers:
73181520 G Free C2 3.5%
Bolts and bolts and their nuts or washers entered or exported in the same shipment
7318152010
Having shanks or threads with a diameter of less than 6 mm
7318152020
Track bolts
7318152030
Structural bolts
7318152041
Right-angle anchor bolts
7318152046
Other
7318152051
Of stainless steel
7318152055
Other
7318152061
Of stainless steel
7318152065
Other
7318152091
Of stainless steel
7318152095
Other
7318154000 G Free C2 2.2¢/kg
Machine screws 9.5 mm or more in length and 3.2 mm or more in diameter (not including cap screws)
73181550 G Free C2 45%
Studs
7318155030
Of stainless steel
7318155051
Of alloy steel
7318155056
Other
7318155090
Other
73181560 G 6.2% C2 45%
Having shanks or threads with a diameter of less than 6 mm
7318156010
Of stainless steel
7318156040
Other
7318156070
Of stainless steel
7318156080
Other
73181580 G 8.5% C2 45%
Having shanks or threads with a diameter of 6 mm or more
7318158020
Set screws
7318158030
Of stainless steel
7318158045
Other
7318158055
Of stainless steel
7318158066
Cap screws
7318158069
Other
7318158082
Of stainless steel
7318158085
Other
G = General Rate（普通税率/MFN）；C2 = Column 2（第二栏税率，适用于非最惠国待遇国家）。来源：USITC hts.usitc.gov。
🇺🇸 美国进口关税速览（8位税号）
| HTSUS 编码 | 商品描述 | General | Column 2 |
|---|---|---|---|
| 73181520 | Bolts and bolts and their nuts or washers entered or exported in the same shipment | Free | 3.5% |
| 73181550 | Studs | Free | 45% |
| 73181560 | Having shanks or threads with a diameter of less than 6 mm | 6.2% | 45% |
| 73181580 | Having shanks or threads with a diameter of 6 mm or more | 8.5% | 45% |
中国数据依据中华人民共和国海关总署现行公告；美国数据依据 USITC HTSUS（hts.usitc.gov）。
本页仅为同一国际通用 6 位 HS 编码下的两国税则并列展示，不代表 10 位编码间存在一一对应关系；实际归类请以两国海关认定为准。