M20 Hex Lag Bolt

Coarse-threaded hex-head lag screw with 20 mm diameter shank for heavy timber framing and decking. Steel construction for high-load wood-to-wood or wood-to-steel joints. Fits HTS 7318.15.80 as other large-diameter screw/bolt.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China8.5%+35.0%43.5%
🇲🇽Mexico8.5%+10.0%18.5%
🇨🇦Canada8.5%+10.0%18.5%
🇩🇪Germany8.5%+10.0%18.5%
🇯🇵Japan8.5%+10.0%18.5%

Alternative Classifications

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

7318.12.00Higher: 47.5% vs 43.5%

If wood screws under 7318.12 but shank <6 mm

Wood screws have dedicated subheading, but large shanks stay in 'other'.

7318.15.60Lower: 41.2% vs 43.5%

If

Cap screws have separate statistical provisions within the heading.

4407.99.02Lower: 35% vs 43.5%

If pre-embedded in wooden structural members

Fasteners integral to wood products classify by principal material.

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

Differentiate lag (coarse wood thread) from machine threads in invoices to avoid 7318.15.60 mix-up

Ensure carbon steel content declaration; alloy versions may need separate review

Related Products under HTS 7318.15.80

M10 Hex Head Cap Screw

A fully threaded steel bolt with a hexagonal head, featuring an M10 thread diameter of 10 mm, used for heavy-duty fastening in machinery and construction. It falls under HTS 7318.15.80 due to its shank/thread diameter exceeding 6 mm and classification as an other screw or bolt of iron or steel. Often sold with matching nuts and washers for secure assembly.

Grade 8.8 M12 Carriage Bolt

A round-head steel carriage bolt with square neck and M12 (12 mm) threads, ideal for woodworking and structural applications where rotation prevention is needed. Classified in HTS 7318.15.80 for its large shank diameter and status as an other bolt of iron or steel. Typically includes nut for through-bolting.

Grade 10.9 M10 Eye Bolt

Forged steel eye bolt with M10 threaded shank (10 mm) and closed eye for lifting and rigging applications. High-tensile grade 10.9 for overhead loads. HTS 7318.15.80 for large shank threaded articles.

M18 Structural Bolt A325

High-strength A325 steel bolt with M18 threads for steel building frameworks, heavy tension connections. Diameter 18 mm exceeds 6 mm threshold. HTS 7318.15.80 covers these other large bolts.

M14 Plow Bolt

Counterbored flat head bolt with M14 (14 mm) threads for agricultural and earth-moving equipment wear parts. Prevents spin-out under vibration. HTS 7318.15.80 for large shank other bolts.

M16 U-Bolt

Semi-circular threaded rod bent into U-shape with M16 parallel threads (16 mm diameter) for pipe clamps and suspension systems. Double-ended for nuts. HTS 7318.15.80 as large threaded other article.