5/16-18 Stainless Steel Flange Round Head Bolt with Nut from China
5/16-inch (7.94mm) stainless steel bolt with integral round flange head for load distribution, includes nut. HTS 7318.15.20.51 applies to its stainless steel round head, >6mm shank, and bundled nut shipment. Popular in machinery mounting.
Duty Rate — China → United States
75%
Rate breakdown
9903.82.0250%Except as provided for in headings 9903.82.14, 9903.85.67 and 9903.85.68, articles of aluminum, of steel or of copper and derivative aluminum or steel articles, as provided for in subdivisions (c)(i)–(v) of U.S. note 16 to this subchapter
9903.88.0325%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)
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Distinguish flange as head integral part, not washer, via cross-section diagrams in entry docs
• Pre-measure all samples for diameter compliance; fractional sizes must convert >6mm
• Avoid mixing with socket cap screws in same entry to prevent head shape confusion