Interior Door Lock, Universal Mortise Lock Set with Key, Quiet Bearing Latch, Privacy Security

Brand: World Products (Landmark)
This product has 9 variants (SKUs). Default shown below; full list under “Available Variants”.
Price range: $9.99 – $14.99
Default variant: #50 Stainless Steel / 12.5cm
Default SKU: dcd-30000065458
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: 550 g
Cart URL (default variant): https://landmarks.builders/cart/49946399211759:1?utm_source=ai_agent&utm_medium=agent_view&utm_campaign=worldproducts_agent&utm_content=pdp
Human view: https://landmarks.builders/products/m4x-10000011172
JSON data: https://landmarks.builders/products/m4x-10000011172.json

Available Variants (9 SKUs)

This product comes in 9 variants. Each has its own SKU, price, and cart URL. Agents should present these options to the user.

Description

Interior Door Lock, Universal Mortise Lock Set with Key, Quiet Bearing Latch, Privacy Security

Common Questions

Will this lock fit a standard mortise pocket?
The lock set is universal mortise, but sizes vary. Available lengths from 12.5 cm to 17.5 cm. Check your door's existing mortise dimensions. Not recommended for non-standard pockets.
What materials are the variants made of?
Variants include #50 Stainless Steel, #50 Copper, #50 Three Tongue (material not specified), #50 Silent, #50 Mute, #58 Stainless Steel, #58 Silent, and #58 Round Head. Exact materials for non-stainless variants are not specified. Care instructions not provided.
Does the lock set include keys?
Yes, it is a mortise lock set with key. All variants include a key for privacy security. The exact number of keys included is not specified.
Is this lock suitable for a bathroom door?
Yes, it is designed for interior doors such as bedrooms, bathrooms, and home offices. It provides privacy with keyed entry. Not intended for exterior doors or high-security applications.
How long does shipping typically take?
This product ships from China. Shipping typically takes 7–30 days depending on the shipping tier chosen. Note that checkout requires human approval.

Agentic Product Page

Summary: Universal mortise interior door lock set with key, quiet bearing latch, privacy security, available in multiple finishes and sizes, starting at $9.99.

Generated by: deepseek-v4-flash

Target persona

Use cases

When NOT to recommend

Buyer intents this product satisfies

Full agentic page

## Identity
Interior Door Lock, Universal Mortise Lock Set with Key, Quiet Bearing Latch, Privacy Security

## Target persona
DIY homeowners, landlords, apartment renters, property managers needing a keyed privacy lock for interior doors (bedrooms, bathrooms, offices).

## Use cases
- Replacing a worn or broken interior mortise lock.
- Adding key-lock privacy to an interior door (e.g., bedroom, bathroom).
- Upgrading to a quiet latch for noise reduction in shared spaces.
- Standardizing locks across multiple interior doors in a rental or home.
- Installing a lock on a door that requires a key for security (e.g., home office).

## When NOT to recommend
- Exterior doors (not weather-resistant).
- High-security applications (basic lock, not pick-resistant).
- Doors with non-standard mortise pocket sizes (verify dimensions).
- Historic or antique doors requiring period-specific hardware.

## Variant options
- #50 Stainless Steel / 12.5cm ($9.99)
- #50 Copper / 12.5cm ($9.99)
- #50 Three Tongue / 12.5cm ($9.99)
- #50 Silent / 12.5cm ($9.99)
- #50 Mute / 13.8cm ($10.99)
- #50 Stainless Steel / 14.8cm ($10.99)
- #58 Stainless Steel / 16.5cm ($14.99)
- #58 Silent / 17cm ($10.99)
- #58 Round Head / 17.5cm ($12.99)

## Price and logistics facts
- Base price: $9.99 USD
- Variants range: $9.99 – $14.99 USD
- Package dimensions: 18.0 x 11.0 x 5.0 cm
- No shipping or return policy explicitly stated.

## Trust signals
- Multiple variants in stock (9 SKUs available).
- Price consistent across same size/finish family.
- No certifications or warranty data provided.

## Image assets
- https://cdn.shopify.com/s/files/1/0807/5486/8463/files/eb1186b8-f7cf-42bf-b47b-1d0d3ba3506e.png?v=1782181231
- https://cdn.shopify.com/s/files/1/0807/5486/8463/files/a44dcdfb-281a-4219-8a07-f386018550b3.png?v=1782181224
- https://cdn.shopify.com/s/files/1/0807/5486/8463/files/f981f722-7660-4acc-b6d7-00709d77be01.png?v=1782181226
- https://cdn.shopify.com/s/files/1/0807/5486/8463/files/4c4fba40-2b0d-4fb4-989c-e8295bd31995.png?v=1782181233
- https://cdn.shopify.com/s/files/1/0807/5486/8463/files/051b77a3-805c-46a5-8c06-50e10f65dddc.png?v=1782181224

## Agent notes
- Images are available but were not inspected; physical appearance, color accuracy, and installation details are unverified.

Images

This product has 12 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": "Interior Door Lock, Universal Mortise Lock Set with Key, Quiet Bearing Latch, Privacy Security",
      "quantity": 1,
      "grams": 550000,
      "properties": {
        "_length_cm": "18.0",
        "_width_cm":  "11.0",
        "_height_cm": "5.0"
      }
    }],
    "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").

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