M16 304 Hex Flange Bolt and Nut Kit

304 stainless steel hex flange bolt with 16mm shank, featuring an integrated flange washer and matching heavy hex nut for high-torque applications. Classified in HTS 7318.15.20.61 for its stainless construction, hex head, large diameter, and shipped set. Popular in automotive and structural engineering.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+35.0%35%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+10.0%10%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

7318.15.20Same rate: 35%

If having shanks or threads over 24 mm diameter

Larger diameters have distinct statistical suffixes beyond the 'other' category.

7318.23.00Same rate: 35%

If threaded nuts imported separately from bolts

Nuts alone classify under other threaded articles, not bundled with bolts.

8431.49Lower: 10% vs 35%

If bolts as parts of specialized machinery like excavators

End-use as machine-specific parts may principal use classify under machinery chapters.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Specify flange as integral (not separate washer) in descriptions to maintain bolt classification

Obtain supplier affidavits on stainless content to counter potential alloy disputes

Related Products under HTS 7318.15.20.61

M6 Stainless Steel Hex Head Bolt

A corrosion-resistant bolt made of stainless steel with a hexagonal head and shank diameter of 6mm or more, certified under AISI 304 grade. It falls under HTS 7318.15.20.61 as it is a threaded bolt with hexagonal head, shipped with matching nuts or washers. Commonly used in marine and construction applications.

M8 316 Stainless Steel Hex Bolt with Nut

High-grade 316 stainless steel hex head bolt featuring an 8mm diameter shank, paired with a matching hex nut for superior corrosion resistance in harsh environments. Classified under HTS 7318.15.20.61 due to its stainless steel composition, hexagonal head, and inclusion of nut in shipment. Ideal for chemical processing and offshore rigging.

M10 A2-70 Hex Head Cap Screw Set

Precision-machined A2-70 stainless steel hex head cap screws with 10mm shank diameter, including lock washers and nuts for secure fastening. This product qualifies for HTS 7318.15.20.61 as stainless steel bolts with hex heads, shipped as a complete set with accessories. Used in food processing machinery.

M12 Stainless Steel Hex Lag Bolt with Washer

Heavy-duty 12mm diameter stainless steel hex lag bolt with integrated washer, designed for wood-to-metal connections in outdoor structures. It meets HTS 7318.15.20.61 criteria: stainless steel, hex head, 6mm+ shank, shipped with washer. Essential for decking and fencing.

Grade 316M M20 Hex Head Stud Bolt Set

Marine-grade 316M stainless hex head stud bolt with 20mm diameter shank, full threading, and nut/washer set for extreme corrosion resistance. Falls under HTS 7318.15.20.61 as a stainless hex bolt shipped with accessories, despite stud-like threading. Used in shipbuilding.

A4-80 M8 Hex Coach Bolt with Square Neck

A4-80 stainless steel hex coach bolt, 8mm shank with square neck under head to prevent turning in wood, shipped with nut. HTS 7318.15.20.61 applies for stainless hex head bolts 6mm+, including variants like coach types. For timber framing.