1/4-Inch Aluminum Lag Screws
Heavy-duty wood lag screws of aluminum alloy with 1/4-inch (6.35 mm) shank diameter and coarse threads for anchoring into timber. HTS 7616.10.70 applies due to shank and thread diameters exceeding 6 mm, excluding them from wire-defined categories. Commonly used in marine and outdoor applications for corrosion resistance.
Import Duty Rates by Country of Origin
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for smaller metric sizes like M5
Subheading 7616.10.60 covers aluminum screws with dimensions 6 mm or under per note on wire.
If specifically for marine hardware use
Base metal mountings and fittings for ships may classify under Chapter 83 if end-use focused.
If classified as aluminum 'wire' products under 6 mm
Chapter note limits 'wire' to cross-sections ≤6 mm, shifting finer products here.
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
• Provide thread pitch and shank diameter measurements in commercial invoices to substantiate over-6-mm classification
• Obtain supplier declarations on aluminum content to differentiate from alloyed steel equivalents
• Watch for anti-dumping duties on certain aluminum products; check Commerce scope rulings
Related Products under HTS 7616.10.70
M8 Aluminum Hex Bolts
Hexagonal head bolts made of aluminum alloy with an M8 thread size (8 mm diameter), used for securing structural components in construction and machinery. Classified under HTS 7616.10.70 because the threads exceed 6 mm in diameter, distinguishing them from finer wire-based fasteners. These bolts meet aluminum alloy criteria with silicon and other elements exceeding purity limits.
M10 Aluminum Carriage Bolts
Round head carriage bolts in M10 size (10 mm diameter) made from aluminum alloy, featuring square necks for rotational stability in wood or metal joints. Falls under 7616.10.70 for threads and shanks over 6 mm, used in furniture and decking. Aluminum construction provides lightweight corrosion resistance.
3/8-Inch Aluminum Eye Bolts
Eye bolts with 3/8-inch (9.5 mm) shank diameter and threaded end, forged from aluminum alloy for lifting and rigging applications. HTS 7616.10.70 due to shank and hole/thread sizes over 6 mm. Ideal for temporary attachments in construction and boating.
M12 Aluminum Hex Nuts
Heavy hex nuts for M12 bolts (12 mm inner diameter hole), machined from aluminum alloy for aerospace and automotive use. Classified in 7616.10.70 because internal threads/holes exceed 6 mm. Provides weight savings over steel counterparts.
5/16-Inch Aluminum Wood Screws
Self-tapping wood screws with 5/16-inch (8 mm) shank and aggressive threads for decking and cabinetry, made of marine-grade aluminum alloy. HTS 7616.10.70 for shank/threads over 6 mm. Corrosion-resistant for humid environments.
10 mm Aluminum Screw Hooks
Heavy-duty screw hooks with 10 mm shank and thread for hanging loads up to 500 lbs, aluminum alloy for porch swings and gates. HTS 7616.10.70 applies as threads/shanks exceed 6 mm. Rust-proof for exterior use.