| 1 | 3925.20.00 | Doors, windows and their frames and thresholds for doors |
| 2 | 7308.10.00 | Bridge sections, corrugated, of grade 60 and 70, high strength low alloy, formable (HSLAS-F), of specification ASTM A1018, with a thickness of 9.5 mm, 11.1 mm or 12.7 mm |
| 3 | 7308.30.00.28 | Motor-operated (gear head) rolling industrial galvanized steel service door, of specification ASTM 653, with coating of galvanized zinc or zinc-iron alloy (galvannealed) by hot-dip process, with slat and hood finish |
| 4 | 7308.90.00 | (a) Adapters for crossing gates, of steel, safety sensitive, with an assembled length of 32 inches, with an assembled width of 12 inches, with an assembled height of 7 inches; (b) Glare screen systems, of 25-gauge steel sheet of grades AISI 1008 or 1010, hot-dip galvanized to ASTM A653 with a G90 coating and powder-coated, supplied with 0.75 inch attachment hardware, concrete expansion anchors, and splice plates of 4140/42 steel with a thickness of 0.375 inch, with all hardware galvanized
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| 5 | 7308.90.00.95 | Grills, air diffusers or ducts of iron or steel |
| 6 | 7308.90.00.99 | (a) Turnbuckle stud assemblies for cable-barrier systems, of steel, including threaded stud and nut, with a diameter of 1 inch, with a length of 7.87 inches, galvanized; (b) Cable spacers for cable-barrier systems, of steel, with a length of 0.15 m, galvanized; (c) Sleeve covers for cable-restraint system posts, of steel, with a width of 0.15 m, with a length of 0.2 m, hot-dip galvanized; (d) Dust covers for cable-restraint system posts, of steel, with a diameter of 180 mm, with a depth of 50 mm, galvanized; (e) Cable-barrier posts, of carbon steel, with a nominal height of 5.7 feet, with a length of 1.52 m, 10-gauge, galvanized; (f) Short posts for cable-barrier systems, of carbon steel with a length of 1.2 m, galvanized; (g) Post straps for cable-barrier systems, of steel, with a thickness of 6 mm, galvanized; (h) Post caps for cable-barrier systems, of steel, stamped, with a nominal height of 7.7 feet, with a width of 0.15 m, with a length of 0.15 m, hot-dip galvanized; (i) Washers, of carbon steel, with an inner diameter of 0.31 inch, with a zinc coating; (j) Washers, of hardened steel, of specification ASTM F436, with a diameter of 0.75 inch; (k) Hex nuts, of steel, of specification ASTM A194 2H, with a diameter of 0.75 inch; (l) Hex bolts, of steel, of specification ASTM A307, with a diameter of 0.31 inch, with a length of 1.75 inches; (m) Structural hex bolts, of steel, of a standard ASTM A325, with a diameter of 0.75 inch, with a length of 4.50 inches; (n) Post straps, of steel, with a thickness of 6 mm, with a length of 0.2 m, galvanized; (o) Hook bolts, of steel, with threaded section and formed hook end, with a diameter of 0.31 inch, with a length of 1.75 inches, for use with cable-barrier post assemblies; (p) Guardrail offset blocks or king blocks, of high-density polyethylene (HDPE), with a thickness of 4 inches, with a height of 7.5 inches, with a length of 14 inches; (q) Cable lock bolts, of steel, with a locking head for cable retention, with a diameter of 0.31 inch, for use in cable-barrier assemblies; (r) Lower posts for cable restraint system, of galvanized steel, with a length of 84 inches, for use in roadside barrier systems; (s) Post caps, of steel, stamped, galvanized, with a width of 150 mm, with a length of 150 mm; (t) Washers, of hardened steel, of specification ASTM F436, with a diameter of 1 inch; (u) Retroflective panels, of steel, with a width of 5 inches, with a length of 24 inches, galvanized or coated; (v) Cable stud assemblies, of steel, with a diameter of 25 mm, machined threads; (w) Terminal posts, of steel, for Test Level (TL-4) barrier systems, with a length of 71.62 inches, galvanized; (x) Driven sleeves, of steel, with a wall thickness of 0.19 inch and with a length of 30.75 inches, galvanized finish; (y) Base angles for cable anchor, of steel, with a thickness of 12 mm, with a width of 150 mm, with a length of 150 mm, galvanized finish; (z) Cable-restraint post brackets, of steel, with a thickness of 6 mm; (z.1) Line posts for a cable-control terminal of steel, galvanized; (z.2) Cable-restraint posts, of steel, galvanized, with a length of 0.61 m, supplied as an upper release-post assembly; (z.3) End terminals for roadside guardrail systems, of steel, meeting MASH Test Level 3 performance criteria, consisting of posts, release hardware and anchorage components; (z.4) Hex nuts, of carbon steel, of a standard ASTM A563, with a diameter of 0.31 inch; (z.5) Hex nuts, of steel, of a standard ASTM A194 2H, with a diameter of 1 inch; (z.6) Insulated metal panels, consisting of two profiled steel facings bonded to a rigid polyisocyanurate foam core, with a width of 40 inches, with a thickness of 3 inches or 4.5 inches, of a length of at least 96 inches but not exceeding 374 inches, with a polyvinylidene fluoride (PVDF) coating on the exterior facing and a polyester coating on the interior facing; (z.7) Insulated structural panels, consisting of a mineral-wool core bonded to steel facings of 22-gauge, 24-gauge or 26-gauge thickness, with a width of 42 inches or 43 inches, of a length of at least 8 feet but not exceeding 48 feet, with a thickness of 3 inches or of at least 4 inches but not exceeding 8 inches
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| 7 | 7312.10.00 | Wire hanging system and gripping mechanisms designed to work together to support HVAC ductwork installations with wire containing a red filament woven in, meeting SMACNA standards, seismic tested conforming to ICC Code guidelines AC284 |
| 8 | 7312.10.00.22 | Custom profiled steel wire used to manufacture automotive wheel balancing weights (designed to adhere to the inside of the wheel using double-sided foam tape), made of low-carbon steel grade 1006, with dimensions of 0.120 × 0.598 x 0.690 inches, supplied in coil form |
| 9 | 7312.10.00.22 | Custom profiled steel wire used to manufacture automotive wheel balancing weights (designed to adhere to the inside of the wheel using double-sided foam tape), made of low-carbon steel grade 1006, with dimensions of 0.120 × 0.498 × 0.787 inches, supplied in coil form |
| 10 | 7314.20.00 | Modular welded wire mesh security walls of steel, with steel tube posts and hinged doors, powder-coated finish |
| 11 | 7317.00.00 | Nails of iron or steel, certified for steel and metal manufacturing construction, of a diameter of at least 4 mm but not exceeding 1 inch, coated or uncoated |
| 12 | 7318.11.00 | Railroad track bolts, of heat-treated carbon steel, with matching untreated carbon steel nuts, with a diameter of 1 inch or 1.125 inch |
| 13 | 7318.15.00 | (a) Welded metal fasteners, “Weld Studs”, cold forged or hot forged, threaded or unthreaded, headed or unheaded, tapped, with or without a collar, flanged and un-flanged, with diameter of at least 2 mm but not exceeding 32 mm; (b) Insulation fasteners and weld pins for HVAC ductwork and insulation installation
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| 14 | 7318.15.00.42 | (a) Armour bolts, of carbon or alloy steel, forged, hardened and tempered, with oval heads, oval collars (anti- rotation), UNC-2A threads, with a nominal diameter of at least 1.5 inches but not exceeding 2 inches, with a length under head of at least 7 inches but not exceeding 45 inches; (b) Threaded hex bolts, of stainless steel, of grade 316L, of a nominal diameter of 0.375 inches or 0.5 inch, of a length of 3.25 inch, 3.5 inches or 5.5 inches, with thread pitches of 13 or 16 threads per inch
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| 15 | 7318.15.00.45 | (a) Double-ended stud, of standard M8, with thread pitch of 1.25 mm and length of 37 mm, with external 6-lobe drive and 17.5 mm header point, with acid treatment and zinc or nickel coating; (b) Double ended stud, of standard M8, with a thread pitch of 1.25 mm and length of 25 mm, pan head serrated neck, of grade 10.9, zinc coating; (c) Double ended stud, of standard M6, with a thread pitch of 1 mm, of grade 10.9, with zinc coating; (d) Projection weld stud of standard M8, with a length of 30 mm, with zinc coating; (e) Round-interior studs, of standard M6, with a diameter of 18.75 mm, with a rod diameter of 0.305 inch, plain coating; (f) Studs, of M6 standards, with a 23.75 mm head diameter, with a 1.5 mm thread pitch, with a 25 mm length, with a rod diameter of 0.345 inch (g) Studs, of M6 standard, of 18.97 mm head diameter of the stud, with a thread pitch of 1 mm, with a length of 21 mm, with a rod diameter of 0.305 inch; (h) Studs, of M6 standard, with 18.97 mm head diameter, with a 1 mm thread pitch, with a length of 20 mm length, with a rod diameter of 0.305 inch
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| 16 | 7318.15.00.49 | (a) Bolts, flange head, self-tapping, of standard M10, with a thread pitch of 1.5 mm and a length of 30 mm, meeting GM6202M, with a thread-forming surface treatment; (b) Socket bolts, of standard M12, with a thread pitch of 1.75 mm and a length of 120 mm, of grade 8.8, with a corrosion-protective surface treatment, meeting automotive specifications; (c) Clinch pins, of steel grades SAE 10B21 or 10B22, of 6 mm diameter and 12.5 mm length, with zinc-plated coating for corrosion protection; (d) Bolts, hex flange, of standard M12, with a thread pitch of 1.75 mm and a length of 80 mm, of property class 10, with a corrosion-protective aluminum-organic surface coating; (e) Bolts, hex flange, of standard M12, with a length of 120 mm, of property class 10, with a corrosion-protective aluminum-organic surface coating
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| 17 | 7318.16.00.90 | (a) Hex nuts, of projection weld type, of standard M12, with a thread pitch of 1.25 mm, of grade 8 steel, with a bare surface and rust-inhibitor treatment; (b) Weld studs, of standard M6, with a thread pitch of 1 mm, with a length of 16 mm, of specification GMW25M (8.8) with a maximum carbon content of 0.26% and plain coating; (c) Studs, projection-weld, of standard M6, with a thread pitch of 1 mm, with a length of 25 mm, of specifications GMW25M; (d) Studs, projection weld type, of standard M6, of 1 mm thread pitch and 20 mm length, of property class 8.8; (e) Weld hex nuts, of standard M8, of 1.25 mm thread pitch, with head diameter of 22.5 mm, of 0.59 inch wire rod; (f) Threaded anchor nuts, of iron or steel, with a nominal diameter of 35 mm or 46 mm
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| 18 | 7318.19.00.00 | Threadbars, of steel, of grade 150, of specification ASTM A722, with a nominal diameter of 1.375 inches or 1.75 inches, with a length of 16.8 feet, 17 feet, 20.62 feet or 22.5 feet |
| 19 | 7318.21.00 | Washers or retaining washers used in conjunction with “weld studs” or “weld pins” , with inside diameters of at least 1.6 mm but not exceeding 6 mm |
| 20 | 7318.22.00.00 | Non-threaded washers, of stainless steel, of grade 316L, of nominal size 0.375 inches or 0.5 inches |
| 21 | 7326.11.00 | (a) Semi-autogenous grinding balls for mills, of steel containing 0.6% carbon, forged or stamped, with a diameter of 5 inches; (b) Forged or stamped steel grinding balls for mills, heat-treated, with a diameter of 3.5 inches
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| 22 | 7326.90.90 | (a) Steel hose clamps, single-band type, of grade 51CrV4, of specification SAE J404 6150M, of a thickness of at least 0.98 mm but not exceeding 1.08 mm, with a width of 15 mm, of a nominal size of 16 mm or 17 mm, of a closed diameter of 14.9 mm or 15.6 mm, of a full-open diameter of 17.5 mm or 18.5 mm, of a clamping force of 145 mm or 195 mm, with a chrome-free zinc-based epoxy coating; (b) Steel hose clamps with plastic removal clips, double-band type, of grade 51CrV4, of specification SAE J404 6150M for the band and of grade PA55 Type 6.6 , of a thickness of at least 0.98 mm but not exceeding 1.08 mm, with a width of 10 mm or 15 mm, of a nominal size of 16 mm or 17 mm, with a chrome-free zinc-based epoxy coating; (c) Steel spools, cold-rolled, of grade CQ1008 or CQ1010, fabricated with an eight-rib design, with flange diameters of 8 inches and 10 inches, with a drum diameter of 4.5 inches, with a traverse length of 6 inches, with an arbor size of 1.25 inches, painted; (d) Steel spools, cold-rolled, of grade CQ1008 or CQ1010, fabricated with an eight-rib design, with flange diameters of 8 inches and 10 inches, with a drum diameter of 4.5 inches, with a traverse length of 6 inches, with an arbor size of 1.25 inches, painted; (e) Breakaway couplings, machined from round ETD 4142 alloy steel bar stock, hot-wrought to a specification ASTM A29/A29M-20, galvanized after machining to ASTM A153 and packaged with hardware galvanized to ASTM A653 (f) Breakaway couplings, of alloy steel, hot-wrought, of grade ETD 4142, galvanized to ASTM A513, with hardware; (g) Female anchoring systems for concrete, comprising a pinch-welded assembly of a stainless steel washer of grade 304, a steel coil of grade 1080 with a diameter of 0.4375 inch, a stainless steel internally threaded ferrule of grade 304 with a 0.625 inch diameter and 11 threads per inch, and a carbon steel rod of grade 1045 with a diameter of 0.4375 inch; (h) Steel hinge assemblies, with hinge plates of grade 4140/42, galvanized to ASTM A153, and supplied with galvanized attachment hardware
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| 23 | 7326.90.90.90 | (a) Welded metal fasteners, “weld studs”, of mild or stainless steel; cold forged, hot forged, threaded or unthreaded, headed or un-headed, tapped, with or without a collar, flanged or un-flanged diameters of at least 2 mm but not exceeding 32 mm; (b) Step assemblies, of steel, with standard drive operation and power switch kit, with a step extension of 25.5 inches, with a load capacity of 300 pounds; (c) Stainless-steel cylindrical shell, of 10-gauge SA240-304 stainless-steel plate, with an outer diameter of 38 inches, with a length of 82 inches, with an 2B interior finish and a 180-grit exterior finish, welded on two sides, wrapped in polyvinyl chloride on two sides; (d) Steel anchor heads for post-tensioning, of specification EN ISO 683-1 or EN ISO 683-2, for strand sizes 19-0.6, 27-0.6 and 31-0.6, for intermediate grouting, comprising galvanized multi-port anchors with two 0.75-inch National Pipe Taper (NPT) ports and associated anchoring and grouting components; (e) Grout caps for use with strand sizes 19-0.6, 27-0.6, 31-0.6, 1.375 inches and 1.75 inches, of specification EN 10130, including stainless steel pipe fittings and ball valves; (f) Three-piece wedges of iron or steel, of specification EN 10277, with a nominal diameter of 0.62 inch; (g) Couplings, of type ASTM C1277 or CSA B602, with a neoprene sleeve and stainless steel shield and clamps, of a diameter of at least 1.5 inches but not exceeding 15 inches
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| 24 | 8302.41.90.20 | Window hardware |
| 25 | 8302.41.90.39 | Door hardware, other than for garage doors |
| 26 | 8302.41.90.41 | Poles, rods or track |
| 27 | 8302.41.90.49 | Drapery accessories |
| 28 | 8302.41.90.90 | Mountings, fittings and similar articles, suitable for buildings other than window hardware, door hardware or drapery accessories |
| 29 | 9401.71.10.10 | Upholstered chairs, other than those with steel frames |
| 30 | 9401.71.10.90 | Upholstered seats, other than chairs with metal frames for domestic purposes |
| 31 | 9401.71.90 | Upholstered seats, not for domestic use, with metal frames other than steel |
| 32 | 9401.79.10 | Seats for domestic purposes |
| 33 | 9401.79.90 | Seats with metal frames, non-upholstered, not for domestic purposes |
| 34 | 9403.10.00.91 | Desks |
| 35 | 9403.10.00.92 | Tables, excluding tracing tables |
| 36 | 9403.10.00.99 | Metal furniture of a kind used in offices, other than filing cabinets, desks or tables |
| 37 | 9403.99.00 | Furniture parts |
| 38 | 9405.99.00 | Luminaries and lighting fitting parts |
| 39 | 9406.90.11 | Silos for storing ensilage: Unassembled or incomplete, of glass fibre reinforced plastics, for use in the manufacture of silos |
| 40 | 9406.90.19 | Silos for storing ensilage, excluding those of steel |
| 41 | 9406.90.20 | Air-supported buildings |
| 42 | 9406.90.90.10 | Prefabricated buildings, of aluminum |
| 43 | 9406.90.90.90 | Prefabricated buildings, excluding those of steel or with a steel frame |