Other
Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: > Non-threaded articles: > Spring washers and other lock washers > Other
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 7318.21.00.90
Stainless Steel Split Lock Washer M6
A helical split ring washer made of stainless steel, designed to provide axial flexibility and prevent loosening of fasteners under vibration. It falls under HTS 7318.21.0090 as a non-threaded spring lock washer of iron or steel, distinct from plain washers. Commonly used in automotive and machinery assemblies.
Zinc-Plated Steel Belleville Disc Spring Washer M10
Conical disc-shaped washer of zinc-plated steel that provides high load capacity in small spaces. It qualifies under HTS 7318.21.0090 as an 'other' lock washer due to its spring action for locking and vibration resistance. Used in heavy machinery and valves.
High-Carbon Steel Wave Spring Lock Washer 5/16 Inch
Wave-shaped spring washer of high-carbon steel for friction locking in low-load applications. Classified as HTS 7318.21.0090 'other' lock washer due to non-threaded spring design. Common in electronics and automotive trim.
A4-80 Stainless Conical Lock Washer M8
Conical spring lock washer in A4-80 marine-grade stainless for superior corrosion resistance. HTS 7318.21.0090 covers this as 'other' non-threaded steel lock washer. Used in marine hardware and outdoor equipment.
Black Oxide Steel Internal Tooth Lock Washer #8
Steel washer with internal teeth that bite into nut faces for locking, finished in black oxide. Non-threaded lock type under HTS 7318.21.0090. Suited for electrical enclosures.
Spring Steel External Tooth Lock Washer M5
External serrated teeth on spring steel washer dig into surfaces for secure locking. HTS 7318.21.0090 as other lock washer. For sheet metal and chassis assembly.
Music Wire Crinkle Washer 3/8 Inch
Crimped edge spring washer from music wire (high-tensile steel) for light locking. Fits HTS 7318.21.0090 non-threaded lock category. Electronics and appliance use.
Oil-Tempered Steel Retaining Lock Washer M12
Heat-treated oil-tempered steel washer with retaining tabs for shaft applications. Under HTS 7318.21.0090 as other steel lock washer. Industrial shaft retention.
17-7PH Stainless Dome-Ended Lock Washer 1/2 Inch
Precipitation-hardened stainless dome washer for high-vibration locking. HTS 7318.21.0090 for other lock washers. Aerospace-grade applications.
Galvanized Steel Multi-Tooth Lock Washer #12
Multiple tooth ring galvanized steel washer for aggressive locking on soft materials. Non-threaded per HTS 7318.21.0090. HVAC and roofing.
Silicon-Manganese Steel Twisted Lock Washer M4
Twisted band spring washer in silicon-manganese steel for superior springback. HTS 7318.21.0090 other category. Precision instruments.
EN 1.4404 Steel Countersunk Lock Washer 10mm
Countersunk spring lock washer in 1.4404 stainless for flush mounting. Under HTS 7318.21.0090. Marine deck fittings.
Beryllium Copper Alternative Steel Lock Washer M3
Steel equivalent to BeCu with high conductivity spring action lock washer. HTS 7318.21.0090 non-threaded. RF connectors.
Carbon Steel Helical Spring Lock Washer 1/4 Inch
A coiled spring washer of carbon steel that compresses to lock nuts and bolts, preventing rotation. Classified in HTS 7318.21.0090 as 'other' non-threaded lock washers of iron or steel. Ideal for construction and equipment fastening.
A2-70 Stainless Finger Lock Washer #10
A washer with protruding finger tabs made of A2-70 stainless steel to grip surfaces and lock fasteners. Falls under HTS 7318.21.0090 as a non-threaded lock washer of steel. Applied in electrical panels and appliances.