Studs
Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: > Threaded articles: > Other screws and bolts, whether or not with their nuts or washers: > Studs
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)
Subheadings
Products classified under HTS 7318.15.50
1/4-20 UNC Double-End Stud
A double-ended fully threaded carbon steel stud with 1/4-inch diameter and 20 threads per inch, ideal for mounting applications in construction and HVAC systems. Classified under HTS 7318.15.50 for studs, which are threaded fasteners without heads, distinguishing them from headed bolts.
3/8-16 UNF Alloy Steel Stud
High-strength alloy steel stud, 3/8-inch diameter with 16 fine threads per inch, for aerospace and pressure vessel bolting. Falls under 7318.15.50 as iron/steel studs, excluding wire dimensions over 16mm.
M6x1.0 Metric Threaded Rod Stud
Cut-to-length fully threaded M6 steel rod functioning as a stud for furniture assembly and shelving. HTS 7318.15.50 includes such uniform threaded rods used as headless bolts.
5/16-18 Fully Threaded Stud
Carbon steel stud with uniform 5/16-inch diameter and 18 coarse threads, applied in plumbing fixtures and pipe hangers. As a headless threaded fastener, it precisely matches HTS 7318.15.50 studs.
M12x1.75 High-Tensile Stud
Grade 8.8 high-tensile steel stud, M12 coarse thread for structural steel framing and bridges. Classified in 7318.15.50 for other steel studs meeting dimensional and form criteria.
1/2-13 UNC Heavy Hex Stud
Heavy series hex shoulder steel stud, 1/2-inch with 13 threads per inch for oilfield and mining equipment. HTS 7318.15.50 applies to stud variants without slotted/phillips drives.
M8x1.25 Hex Head Stud
A fully threaded steel stud with a hex head, 1.25mm pitch and 8mm diameter, used for secure fastening in machinery and automotive assemblies. It falls under HTS 7318.15.50 as a 'stud', defined as a headless bolt or screw with full or partial threading designed for bolting applications without a defined head for driving.
M10x1.5 Flange Stud
Threaded steel stud with integral flange base, M10 diameter and 1.5mm pitch, used in engine blocks and heavy equipment for high-torque applications. HTS 7318.15.50 covers such studs as other threaded articles without distinct driving heads.