What is the Minimum Order Quantity (MOQ)?

The Minimum Order Quantity is 300 pieces.

How is the product quality inspected?

We perform 100% inspection on finished products, including both visual and functional checks, following uniform instructions.

What materials are used in the hinge construction?

The main hinge material is zinc alloy, with stainless steel #304 connectors, aluminum alloy screws, and nylon Pa66 resistant discs.

Soss Door Hardware Soss Invisible Concealed Hinges

Name: Soss Door Hardware Soss Invisible Concealed Hinges
Brand: Dongguan Shengang Precision Metal & Electronic Co., Ltd.
SKU: 889396205

Guangdong, ChinaDongguan Shengang Precision Metal & Electronic Co., Ltd.

US$1.00-20.00

1,000 Pieces

Sample price:US$50.00/piece.Request sample

Product profile

Customization

Available

Type

180°Hinge

Finish

Chrome Plated

Model NO.

SG-HC104#6

Material

Zinc Alloy

Name

Soss Invisible Concealed Hinges

Size

116*27.8*41mm

Hinge Material

Zinc Alloy

Angle

180 Degree

Door Weight

45kg/Pair

Door Thickness

45mm

Finishing

Baking in Black

Transport Package

White Inner Boxes, Yellow-Borwn Outer Cartons

Specification

116*27.8*41mm

Origin

China

HS Code

8302100000

Production Capacity

100000PCS

Key features

Customizable Finishes: Offers satin nickel, chrome, gold, bronze, and custom colors as required.

High Load Capacity: Supports up to 45kg per pair with 180-degree opening angle.

Durable Materials: Constructed from zinc alloy, stainless steel, and aluminum alloy components.

OEM/ODM Service: Supports full customization from samples, designs, or minor adjustments.

Strict Quality Control: 100% visual and functional inspection before shipment.

Flexible Payment: Accepts T/T, PayPal, Western Union, and LC with deposit options.

Fast Lead Time: Average production time within 15 workdays for both peak and off-season.

Experienced Manufacturer: 19 years of export experience with 8 R&D engineers and 10 production lines.

Company profile

Dongguan Shengang Precision Metal & Electronic Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 19 Years CertifiedNearest Port: Shenzhen Port, Guangzhou PortAverage Response Time: ≤5.32h

AI-Powered supplier vetting

SummaryDongguan Shengang Precision Metal & Electronic Co., Ltd. is a China-based limited trading/manufacturing company established in 2007, with a stated founding description also referring to February 2000. It operates from Dongguan, Guangdong, with 117 employees, a 5,550 m² manufacturing plant, six production lines, and 5 R&D engineers. Its product range centers on door and window hardware, including hinges, locks, handles, closers, stoppers, and sliding or folding-door fittings. The supplier reports ISO 9001:2015 certification, OEM/ODM cooperation, international export coverage, and sales in Europe, America, Southeast Asia, and the Middle East. Production-management and technical capabilities are supported by stated equipment, engineers, quality-control personnel, and testing activities. However, the provided information does not substantiate after-sales procedures, financial strength, specific customer cases, or measurable customization performance.

Supplier typeThe supplier is identified as a China-based limited company and trade company, while its descriptions also characterize it as an international manufacturer integrating R&D, production, and sales of door and window hardware. This indicates a combined trading and manufacturing profile rather than a purely trading entity.

CertificationsThe supplier explicitly reports holding an ISO 9001:2015 certificate for its management system. This is direct evidence of a recognized quality-management certification, although the scope and validity details are not provided.

R&D capabilityThe supplier reports advanced production equipment, leading production technologies, 5 R&D engineers, mold-making and product-testing activities, and multiple product types including adjustable concealed and casement hinges. These statements directly support active technical development and product innovation capability.

Production capacityThe supplier reports a 5,550 m² manufacturing plant, six production lines, advanced equipment, production technologies, dozens of production staff, quality-control personnel, and a production-management system. Its stated product scope and broad export markets further indicate established operating capacity.

Customization capabilityThe supplier states that its engineers conduct R&D, mold making, production and processing, and product testing, and that it cooperates with international brands through OEM and ODM. These activities explicitly support customization capability, although no customization examples, minimum quantities, or technical limits are specified.

Product Q&A

Q:What are the available finish options?

Standard finishes include satin nickel, satin chrome, pearl nickel, pearl chrome, gold plated, antique bronze, and antique copper. Custom finishes are also available upon request.

Q:What is the maximum door weight this hinge can support?

The hinge is designed to support a maximum door weight of 45kg per pair.

Q:Does the manufacturer offer OEM or ODM services?

Yes, we provide OEM and ODM services, including full customization from samples or designs, as well as minor and flexible customization options.

Q:What are the payment terms for orders?

We accept T/T, PayPal, Western Union, and LC. Typically, a 30% or 50% deposit is required upon order confirmation, with the balance paid before shipment.

Q:What is the lead time for production?

The average lead time is within 15 workdays, regardless of whether it is peak season or off-season.