Spring Mechanism for Automatic Door Closer
High-tension steel coil spring that provides the primary closing force in automatic door closer units. Falls under HTS 8302.60.90.00 as a critical base metal part of door closing hardware for commercial buildings. Adjustable torque rating.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If general helical springs not for door closers
Springs of iron or steel without specific mountings function classify separately.
If for saddlery or trunk hardware
Similar springs for luggage or equestrian gear have different article provisions.
If when used in seat or furniture mechanisms
Parts of seats with spring action fall under furniture Chapter 94.
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Import Tips & Compliance
• Load test certificates demonstrate spring tension specifications for door applications
• Package with closer assembly instructions to establish part-of-a-whole relationship
• Avoid classification as mattress springs (9409.90); emphasize building hardware use
Related Products under HTS 8302.60.90.00
Aluminum Door Closer Track Rail
An aluminum sliding track rail that guides the piston mechanism in automatic door closer assemblies. Classified under HTS 8302.60.90.00 as a base metal part integral to automatic door closers for interior doors and cabinetry. Provides smooth operation and speed control.
Hydraulic Fluid Valve for Door Closer
Brass one-way hydraulic valve regulating fluid flow in automatic door closer cylinders. This precision part falls under HTS 8302.60.90.00 as a base metal component controlling door swing speed. Replaceable for maintenance.
Surface Mount Door Closer Cover Plate
Decorative and protective steel cover plate for surface-mounted automatic door closers. Classified under HTS 8302.60.90.00 as a base metal part concealing mounting hardware on visible door closer installations. Multiple finish options.
Steel Hydraulic Door Closer Arm
This is a replacement steel arm for hydraulic automatic door closers used on commercial and residential doors. It falls under HTS 8302.60.90.00 as a base metal part specifically designed for automatic door closers. The arm connects the closer body to the door frame, providing adjustable tension control.
Brass Door Closer Piston Assembly
Precision-machined brass piston that operates within hydraulic automatic door closers for controlled closing action. This part falls under HTS 8302.60.90.00 due to its specialized function in base metal automatic door closer systems. Corrosion-resistant for high-traffic environments.
Zinc Die-Cast Door Closer Body Housing
Die-cast zinc housing that encases the spring and hydraulic mechanisms of automatic door closers. Classified in HTS 8302.60.90.00 as essential base metal parts for door closing devices on furniture and buildings. Durable finish for exterior mounting.