Sourcing Brass Threaded Studs from China

Zero duty on brass threaded studs

Heading 7415 covers copper and copper-alloy fasteners, including brass threaded articles. For stud bolts, check the screws, bolts and nuts line against the actual drawing; other threaded articles have a separate line. The table also includes matching washers and retaining pins. See the wider brass machine screws guide.

Read from the UK Trade Tariff on 1 October 2026, every supplied line carried 0% duty for goods from China. The supplied snapshot lists no anti-dumping or countervailing duties, suspensions or attached import controls. The duty range is therefore uniformly 0%.

Confirm the commodity code using the material, drawing and finished form. Brass-plated steel fasteners belong to the steel fastener heading rather than the copper-alloy heading. Import VAT is normally 20%; see UK import duty and VAT.

Specify the alloy and each threaded end

State the brass grade and composition, material condition, overall length, thread diameter, pitch, tolerance and handedness. For double-ended studs, specify each end separately, including threaded length, plain shank, shoulders and any different thread forms. Define end chamfers, surface finish and whether plating is permitted.

Agree an assembly sample using the actual mating nuts and tapped holes. Specify the intended tightening method and service load, then agree suitable strength checks. For leaded brass or plated parts, obtain a supplier statement on restricted substances under UK REACH.

For studs supplied as consumer products in Great Britain, general product safety rules require safety in normal or reasonably foreseeable use. These rules cover products intended for, or foreseeably used by, consumers. Keep the intended use clear when assessing the finished product.

Worked duty example

Illustrative example, not a quote: Labelled cartons of mixed-size brass stud bolts for a small business, illustrative only under 7415 33 00 00, invoiced at £2,500 free on board, with £900 of freight and insurance to the UK. The customs value is £3,400. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £3,400, so it is £680. With no duty, the only import tax is the VAT, which a VAT-registered importer can usually reclaim. The import duty and VAT guide explains each step.

Inspection checklist

Material: compare the batch certificate with the ordered alloy, test sample composition and cut a sample to check for plated steel.

Threads: use agreed go and no-go gauges on each threaded end, check thread length and test fit with the actual mating parts.

Geometry and strength: measure overall length, shank and shoulders, check straightness and burrs, and carry out the agreed assembly and strength checks.

Packing: check size and batch labels, carton counts and protection against bent studs or damaged thread ends. Plan checks with the quality inspection guide.

What goes wrong

A stud may enter a nut yet bind before reaching its working position because the pitch, thread tolerance or usable thread length is wrong. Burrs and damaged lead threads make assembly difficult. Short threaded ends can leave insufficient engagement even when overall length matches the drawing.

Alloy substitution can change strength and machining behaviour; brass-plated steel can be mistaken for solid brass. Mixed lengths and bent studs cause further rejects. Approve the drawing and assembly sample, then repeat material and dimensional checks on the shipment.

Cambridge China Bridge sources these products for UK businesses, checking the factory and the documents before shipment. See factory verification. For repeat volumes, see container programmes.