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Factory Supply SK2-390 Concealed Spring Hinge - 180 Degree Opening Stainless Steel Door Hinge for Chassis Factory Supply SK2-390 Concealed Spring Hinge - 180 Degree Opening Stainless Steel Door Hinge for Chassis
Factory Supply SK2-390 Concealed Spring Hinge - 180 Degree Opening Stainless Steel Door Hinge for Chassis Factory Supply SK2-390 Concealed Spring Hinge - 180 Degree Opening Stainless Steel Door Hinge for Chassis
Factory Supply SK2-390 Concealed Spring Hinge - 180 Degree Opening Stainless Steel Door Hinge for Chassis Factory Supply SK2-390 Concealed Spring Hinge - 180 Degree Opening Stainless Steel Door Hinge for Chassis
Factory Supply SK2-390 Concealed Spring Hinge - 180 Degree Opening Stainless Steel Door Hinge for Chassis Factory Supply SK2-390 Concealed Spring Hinge - 180 Degree Opening Stainless Steel Door Hinge for Chassis
Factory Supply SK2-390 Concealed Spring Hinge - 180 Degree Opening Stainless Steel Door Hinge for Chassis Factory Supply SK2-390 Concealed Spring Hinge - 180 Degree Opening Stainless Steel Door Hinge for Chassis

Factory Supply SK2-390 Concealed Spring Hinge - 180 Degree Opening Stainless Steel Door Hinge for Chassis

US$ 1.30 ~ 1.26
Min.Order: 2
Product origin: Dongguan, Guangdong, China
Category: Tools
Product Name: Tools
Availability:In Stock
Product Review : 31 Reviews
Infringement complaint:
* Please contact the supplier via whatsapp first before placing an order
  • Model Number : SK2-390
  • Material : Stainless Steel (SUS304)
  • Finish : Vibration Ground
  • Opening Angle : 180 Degrees
  • Type : Concealed Spring Pivot Hinge
  • Dimensions : 42mm x 42mm
  • Installation : Universal (Left/Right)
  • Application : Cabinet Doors, Automation Equipment
  • Warranty : 1 Year
  • MOQ : 1 Piece
  • Feature : Exchange Shaft Throw Detection
  • HS Code : 7903100000

It's a stainless steel concealed spring hinge with a full 180-degree opening, vibration ground finish, and universal left-right insallation — the kind of thing that looks clean and works reliably on chassis cabinets or automation gear.

SK2-390 Hinge Front View

We send these out regularly to buyers in the US and EU who need a hinge that can take constant use and still close smoothly, though it's not really meant for heavy residential doors where the weight exceeds what a compact 42x42mm unit handles.

SK2-390 Hinge Side View

SK2-390 Hinge Installation

The MOQ is just one piece, so you can test fitment before ordering in bulk, and we usually have stock ready within 20 days or so (check lead time for larger volumes). COAs and basic import docs come with each shipment.

SK2-390 Hinge Close-up

What it does is use low-profile design with exchange shaft throw detection — basically a small but useful feedback feature for appliction where you need to know the door's position. It's better than cheap zinc alloys for corrosion resisance, and the 1-year defects.

SK2-390 Hinge Package

Actually, the 180-degree swing is what most automation buyers here care about; it clears cabinet fronts without the hinge sticking out. We've shipped these to UK integrators who appreciate consistent spring tension batch to batch.

Frequently Asked Questions

What is the minimum order quantity for the SK2-390 hinge?

You can order just one piece — there's no minimum quantity. So if you only need a single hinge for a repair or prototype, that's fine.

Is the SK2-390 hinge certified with any quality documents?

We can provide a material test certificate for the SUS304 stainless steel upon request. Just let us know when you place the order.

Can the SK2-390 hinge be used on both left and right opening doors?

Yes, it's universal — works for left or right hand doors. You don't need to order separate hinges for different orientations.

What does 'exchange shaft throw detection' mean on this hinge?

That feature lets you check if the hinge shaft is fully engaged or misaligned during installation. It saves time during assembly and helps avoid door alignment issues.

How is the SK2-390 hinge typically packaged for shipment?

Each hinge is packed in a bubble bag inside a carton box to prevent scratches. We can also do custom packaging if you need it for retail or bulk orders.

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