Why inspect door handles before shipment?

Pre-shipment inspection for door handles helps detect defects like cosmetic scratches, dimension errors, stuck operation and locking failure before delivery. As critical hardware for doors and windows, faulty door handles will lead to returned goods, rework cost at destination and order deductions once shipped overseas, hurting brand reputation. We check function, surface finish and accessories to meet order requirements, reduce after-sales disputes and guarantee delivery quality.
Inspection Standards
1. Sampling
Sampling according to AQL. Critical defects:0, Major defects:0.65, Minor defects:2.5.
2. Document check
Verify item model, material, surface treatment and accessory list, match with purchase order.
3. Visual inspection
No scratches, dents, peeling paint, oxidation or stains. Plating is uniform, no obvious color difference within batch. Markings are clear.
4. Dimension check
Overall length, hole diameter, mounting spacing and thickness comply with drawing, tolerance within permitted range.
5. Function test
Handle rotates smoothly without sticking or wobbling. Rebound is firm and complete. Latch tongue opens and closes normally. Screw holes fit accessories.
6. Material & assembly
No sand holes or air bubbles on casting. All parts are assembled tightly without loose clearance. Full set of screws included.
7. Packing check
Each unit well protected to avoid scratch. Outer carton marks clear. Quantity matches packing list. Package strong enough for sea transport.




