Cap screws
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: > Other: > Having shanks or threads with a diameter of 6 mm or more > Other: > Other: > With hexagonal heads: > Other: > Cap screws
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 7318.15.80.66
M16 x 200mm Alloy Steel Hex Head Cap Screw
Alloy steel cap screw with M16 thread diameter, 200mm overall length, and hexagonal head for industrial structural bolting. Engineered for high vibration resistance in heavy equipment. Meets HTS 7318.15.80.66 as other cap screws with shank/threads 6mm+ and hex heads.
M12 x 80mm Stainless Steel 316 Hex Cap Screw
Marine-grade A4-80 (316 stainless) hex head cap screw M12 x 80mm for corrosive environments like boat hardware and chemical processing. Polished finish, full thread. Still HTS 7318.15.80.66 as iron/steel cap screw despite stainless material.
5/8-11 UNC Heavy Hex Cap Screw 8 Inch
Heavy pattern hex head cap screw 5/8 inch (15.9mm) diameter, 11 TPI UNC, 8 inches long for transmission towers and bridges. Thicker head shank transition. HTS 7318.15.80.66 covers heavy hex cap screw designs over 6mm.
M24 x 300mm Hex Head Cap Screw Grade 8.8
Large diameter M24 x 300mm carbon steel hex cap screw Grade 8.8 for wind turbine towers and heavy cranes. Full body thread with hex head wrench flats. Precisely HTS 7318.15.80.66 as other cap screws with 6mm+ diameter.
M10 x 60mm Hex Flange Cap Screw Grade 10.9
Integrated flange face hex head cap screw M10 x 60mm Grade 10.9 for engine blocks and truck chassis. Flange distributes load, replaces nut in many apps. Still HTS 7318.15.80.66 as hex head cap screw design over 6mm.
3/4-10 UNF Fine Thread Hex Cap Screw 10 Inch
Fine thread 3/4 inch (19mm) UNF hex cap screw 10 inches long for vibration-resistant aircraft ground support equipment. Grade 8 equivalent. HTS 7318.15.80.66 for all hex cap screws regardless thread pitch.
M18 x 180mm Hex Head Cap Screw Black Finish
M18 diameter x 180mm length hex cap screw with phosphate black finish for corrosion protection in agricultural machinery. Medium carbon steel Grade 8.8. Classifies HTS 7318.15.80.66 as standard hex cap screw >6mm.
M14 x 140mm Hex Cap Screw Hot Dip Galvanized
Hot dip galvanized M14 x 140mm hex head cap screw for outdoor electrical transmission structures. Zinc coating 70+ microns thick. HTS 7318.15.80.66 covers galvanized cap screws as base steel article.
1-8 UNC Hex Head Cap Screw 12 Inch Grade 5
1 inch diameter UNC 8 TPI x 12 inch long hex cap screw Grade 5 for large diesel engine main bearings. Standard hex head proportions. Oversized HTS 7318.15.80.66 cap screw classification.
Hex Head Cap Screw M10 x 100mm Grade 8.8
A high-tensile steel cap screw with a hexagonal head, 10mm diameter shank and thread, and 100mm length, certified to Grade 8.8 strength standards. It features a clean machined finish and is designed for high-stress fastening in machinery and structural applications. Classified under HTS 7318.15.80.66 as a cap screw with shank/thread diameter over 6mm and hexagonal head.
Grade 10.9 Hex Cap Screw 12mm x 150mm Zinc Plated
Heavy-duty zinc-plated carbon steel cap screw with 12mm diameter and 150mm length, Grade 10.9 for extreme load applications in construction equipment. The hexagonal head allows wrench tightening, and plating provides corrosion resistance. Fits HTS 7318.15.80.66 due to cap screw design, large diameter, and hex head.
3/8-16 UNC Grade 5 Hex Cap Screw 4 Inch
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.
M20 x 250mm High Strength Hex Cap Screw Grade 10.9
Metric high-strength friction grip cap screw M20 diameter x 250mm length, Grade 10.9, black oxide finish for bridge and tower construction. Hex head with bearing face for precise torque. Classifies as HTS 7318.15.80.66 cap screw with large shank/thread diameter.
1/2-13 UNC Hex Head Cap Screw 6 Inch A325
ASTM A325 structural bolt equivalent hex cap screw, 1/2 inch (12.7mm) diameter, 13 TPI UNC, 6 inches long, quenched and tempered for steel building connections. Weather-resistant coating optional. HTS 7318.15.80.66 for cap screws with hex heads over 6mm.
M8 x 120mm Hex Socket Cap Screw Alloy Steel
Wait, no—this is socket head, not hex head. Adjusting to proper hex: M8 x 120mm Hex Head Cap Screw Alloy Steel Grade 8.8 for automotive suspension. Note: M8 is 8mm >6mm threshold. Machine finish hex head distinguishes as cap screw per HTS 7318.15.80.66.