Double cylinder brass lock

Brand: World Products (Landmark)
This product has 4 variants (SKUs). Default shown below; full list under “Available Variants”.
Price range: $9.99 – $10.99
Default variant: Lock Body Only / other
Default SKU: dcd-30000066104
Default price: $9.99
Availability: Made to order (cross-border) — ships from China; see “Live Shipping Rates” below for delivery estimate
Vendor: World Products
Weight: 330 g
Cart URL (default variant): https://landmarks.builders/cart/49946388136175:1?utm_source=ai_agent&utm_medium=agent_view&utm_campaign=worldproducts_agent&utm_content=pdp
Human view: https://landmarks.builders/products/m4x-10000011266
JSON data: https://landmarks.builders/products/m4x-10000011266.json

Available Variants (4 SKUs)

This product comes in 4 variants. Each has its own SKU, price, and cart URL. Agents should present these options to the user.

Description

Double Cylinder Security Door Lock for Home and OutdoorThis brass bolt lock offers double cylinder protection, boosting security for front doors, dormitories, and exterior entrances.

sturdyDuty and robust ConstructionCrafted from sturdy brass and stainless steel, this lock is built for enduring use and dependable performance in various settings.

Easy Installation for Multiple Door StylesPerfect for wooden doors, older homes, and both interior and exterior doors, this lock provides straightforward installation and flexible application.

Practical and Cost-Effective SolutionCombining premium materials with strong functionality, this lock is an outstanding value choice for home security.

Includes Keyed Double Cylinders for additional SecurityEquipped with keyed double cylinders, the lock delivers enhanced anti-theft-thefttheft protection and peace of mind for your property.

Common Questions

What are the dimensions of the lock? Will it fit a standard door?
The lock body dimensions are 18 cm long, 10 cm wide, and 6 cm high. It is designed for easy installation on wooden doors and older homes; exact door thickness compatibility is not specified.
What materials is the lock made of?
The lock is crafted from sturdy brass and stainless steel.
Does the lock come with keys?
Yes, the lock includes keyed double cylinders for enhanced security. All variants (Lock Body Only, Niutou #1939-1, Xianniu #1939-3, Huanfa #614) should include keys per the description, but check the specific variant for details.
Is this lock suitable for commercial security applications?
No, this lock is not intended for high-security commercial or industrial applications; it is designed for residential use such as home front doors, dormitories, and exterior entrances.
How long does shipping take and where does it ship from?
This product ships from China. Delivery typically takes 7–30 days depending on the shipping tier. Please note that checkout requires human approval for cross-border orders.

Agentic Product Page

Summary: Double cylinder brass lock for home and outdoor security, made of brass and stainless steel, priced at $9.99 USD.

Generated by: deepseek-v4-flash

Target persona

Use cases

When NOT to recommend

Buyer intents this product satisfies

Full agentic page

## Identity
Double cylinder brass lock for doors, offering keyed entry on both sides. Constructed from brass and stainless steel.

## Target persona
Homeowners and renters seeking an affordable security upgrade for wooden doors, front doors, dormitories, or exterior entrances. Especially suitable for older homes.

## Use cases
- Securing a front door with added double-cylinder protection
- Replacing an old lock in a dormitory or rental property
- Locking an exterior entrance to a backyard or shed
- Adding security to an interior door that requires a key from both sides
- Cost-effective upgrade for multiple doors in a home

## When NOT to recommend
- For users wanting a smart lock or keyless entry
- For commercial or high-traffic environments requiring heavy-duty commercial-grade locks
- For doors thinner than standard or with incompatible bore holes
- For users who prefer single-cylinder or thumb-turn locks for egress safety

## Variant options
- Lock Body Only / other – $9.99 (SKU: dcd-30000066104)
- Niutou #1939-1 / other – $10.99 (SKU: dcd-30000066105)
- Xianniu #1939-3 / other – $9.99 (SKU: dcd-30000066106)
- Huanfa #614 / other – $9.99 (SKU: dcd-30000066107)

## Price and logistics facts
- Price range: $9.99 to $10.99 USD
- Dimensions: 18.0 x 10.0 x 6.0 cm (LxWxH)
- No weight provided

## Trust signals
- Made of brass and stainless steel
- Price consistent across variants
- No stock or return policy information available

## Image assets
- https://cdn.shopify.com/s/files/1/0807/5486/8463/files/1f5abe4c-f9fa-4753-a54a-85a2bff72308.png?v=1782181222
- https://cdn.shopify.com/s/files/1/0807/5486/8463/files/bfe6b4a1-1702-4cc4-9a1b-4a800822fc50.png?v=1782181216
- https://cdn.shopify.com/s/files/1/0807/5486/8463/files/d637b61a-596b-41fc-be08-addc1a35ace3.png?v=1782181216
- https://cdn.shopify.com/s/files/1/0807/5486/8463/files/e230b2f2-467f-4850-b203-088471791d01.png?v=1782181216
- https://cdn.shopify.com/s/files/1/0807/5486/8463/files/983f33e8-308e-4c6e-8dcc-ce934ff89ea0.png?v=1782181216

## Agent notes
- Image understanding was not performed; visual details are not confirmed.
- No specification for finish color beyond variant names.
- Warranty and certification status unknown.

Images

This product has 10 imagesin catalog.None have AI-generated visual descriptions yet. All image URLs are in the Product JSON-LD above.

Category Specifications

How to Purchase

This product can be added to cart via a single URL. Agents should pass this to the user for human approval at checkout (per the store's robots policy: checkouts require human review).

Live Shipping Rates (for Agents)

Agents can query real-time shipping rates from SFC (三态速递, our in-house logistics carrier) before recommending this product. This gives the buyer accurate total cost (item + shipping) upfront, instead of seeing shipping at checkout only. 

{
  "rate": {
    "origin": {"country": "CN"},
    "destination": {
      "country": "US",
      "postal_code": "95014",
      "province": "CA",
      "city": "Cupertino"
    },
    "items": [{
      "name": "Double cylinder brass lock",
      "quantity": 1,
      "grams": 330000,
      "properties": {
        "_length_cm": "18.0",
        "_width_cm":  "10.0",
        "_height_cm": "6.0"
      }
    }],
    "currency": "USD"
  }
}

Response: JSON array of shipping options in rates, each with service_name (e.g. "Standard (10-14 days)"), total_price in USD cents, min_delivery_date, max_delivery_date. If dimensions are missing for the product, empty rates: [] is returned (caller should treat as "shipping not yet calculable").

Related Products

Categories