Can this be installed in the active door of a steel french door?

Yes, that's how I installed mine.

How does one even install these?

I made a jig with plywood, then pin-nailed it to the doors edge. Set the depth and go at it. Last, clean up the corners with a chisel. Now you’re ready to install the locking mechanism.

Is this marine grade stainless steel for use on the coast?

Cheap Chinese stainless steel. But for the price it should work

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Sumnacon 2 Pcs Door Flush Bolts 6 Inch Flush Bolt for Double Door,Black | Concealed Security Door Locks for French Doors,Composite ,Wood ,Double ,Dummy Doors,Brush Stainless Steel Finish

Sumnacon 2 Pcs Door Flush Bolts 6 Inch Flush Bolt for Double Door,Black | Concealed Security Door Locks for French Doors,Composite ,Wood ,Double ,Dummy Doors,Brush Stainless Steel Finish

Product ID: 140819298

Details

Brand
Sumnacon
Lock Type
Deadbolt
Material
Metal Steel
Recommended Uses For Product
Residential
Special Feature
Automatic

🔒6-inch heavy-duty stainless steel

⚙️Automatic holding spring tension

🛠️Easy concealed lever switch

28422CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Senegal.

Secure transaction

Description

🔐 Elevate your door security with sleek, stealthy strength!

DUAL POINT SECURITY - Recommended top and bottom installation for maximum door stability.
SLEEK CONCEALED STYLE - Modern black brushed finish blends seamlessly with upscale interiors.
COMPLETE INSTALLATION KIT - Includes rust-proof screws and strikes for quick, hassle-free setup.
EFFORTLESS LEVER OPERATION - Integrated switch design ensures smooth, comfortable locking every time.
SOLID STAINLESS STEEL STRENGTH - Rustproof, corrosion-resistant build for lasting security.

The Sumnacon 2 Pcs 6-Inch Door Flush Bolts offer robust, corrosion-resistant locking for double and dummy doors. Featuring an automatic holding spring and a smooth lever switch, these flush bolts provide reliable, concealed security with a modern black brushed finish. Designed for easy installation with included hardware, they enhance both safety and style for residential French, composite, wood, and patio doors.

Specifications

ASIN	B07Q349BFJ
Additional Features	Automatic Holding Spring, Integrated Switch Design, Concealed Style
Best Sellers Rank	#31,456 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #77 in Door Latches & Bolts
Brand Name	Sumnacon
Color	Black
Customer Reviews	4.5 4.5 out of 5 stars (1,348)
Finish Types	Brushed
Included Components	Screws, Strikes, Installation Instructions
Lock Type	Deadbolt
Manufacturer	Sumnacon
Manufacturer Part Number	ULSMC00317
Material Type	Metal, Stainless Steel, Wood
Model Number	ULSMC00317
Number of Items	2
Number of Pieces	2
Recommended Uses For Product	Residential Doors
Style Name	Modern
Unit Count	2 Count

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

28422CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Senegal.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

View all Trustpilot reviews