3/8-16 UNC Grade 5 Hex Cap Screw 4 Inch from Japan
Imperial Grade 5 medium carbon steel hex head cap screw, 3/8 inch (9.5mm) diameter, 16 TPI UNC thread, 4 inches long for automotive and general machinery. Fully threaded with chamfered point. HTS 7318.15.80.66 applies to this US-standard cap screw over 6mm diameter.
Duty Rate — Japan → United States
58.5%
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
9903.05.900%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
• Specify UNC/UNF clearly; metric equivalents can confuse examiners without diagrams
• Grade 5 proof load testing docs required for structural claims