--- product_id: 15064137 title: "National Hardware Chain Bolt, 6 in, Steel, Zinc Plated" brand: "national hardware" price: "31955CFA" currency: XOF in_stock: true reviews_count: 13 category: "National Hardware" url: https://www.desertcart.sn/products/15064137-national-hardware-chain-bolt-6-in-steel-zinc-plated store_origin: SN region: Senegal --- # Compact dimensions Secure locking mechanism Durable zinc finish National Hardware Chain Bolt, 6 in, Steel, Zinc Plated **Brand:** national hardware **Price:** 31955CFA **Availability:** ✅ In Stock ## Summary > 🔧 Lock it down with style! ## Quick Answers - **What is this?** National Hardware Chain Bolt, 6 in, Steel, Zinc Plated by national hardware - **How much does it cost?** 31955CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/15064137-national-hardware-chain-bolt-6-in-steel-zinc-plated) ## Best For - national hardware enthusiasts ## Why This Product - Trusted national hardware brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **🔑 Versatile Use:** Perfect for cabinets, screens, and industrial doors. - • **💪 Automatic Locking:** Strong spring mechanism for effortless security. - • **🔄 Reversible Design:** Easily adapts for doors opening in or out. - • **🌧️ Weather Resistant:** Zinc plating ensures durability against the elements. - • **📦 Convenient Packaging:** Single unit for easy installation and replacement. ## Overview The Stanley National Hardware S757-033 1055 Chain Bolt is a robust and versatile locking solution designed for various door types, featuring a durable zinc finish and an automatic locking mechanism for enhanced security. ## Description Product Description Transform your home security with the National Hardware N150-771 V820 Chain Bolt, a robust 6-inch door security solution engineered for maximum protection and peace of mind. This premium door lock latch combines traditional reliability with modern manufacturing excellence, creating an essential barrier against unauthorized entry while providing comprehensive door locks protection. Crafted from cold rolled steel and finished with zinc plating, this door chain lock delivers exceptional durability and corrosion resistance. The zinc-plated surface ensures long-lasting performance, making this chain lock for door applications an investment in your home security door lock infrastructure. Whether securing front door locks or adding protection to interior spaces, this door bolt provides reliable performance for all locks for doors needs. Designed specifically for in-swinging doors, this door security latch accommodates both right and left-hand applications, offering versatile installation options. The 6-inch door chain provides optimal security coverage while maintaining convenient operation as an effective latch lock system. Installation is straightforward and user-friendly, requiring basic tools and minimal technical expertise. This door security lock serves as an ideal complement to existing door locks, creating multiple layers of protection that significantly improve your home's overall security profile. The chain door lock mechanism allows you to partially open your door while maintaining a secure barrier, ideal for screening visitors or accepting deliveries safely. This door safety latch gives you complete control over access. National Hardware brings over a century of manufacturing expertise to this door bolt lock, representing a legacy of innovation in door latches and security solutions. This surface bolt integrates seamlessly with standard door configurations while providing professional-grade security locks for doors inside performance. From the Manufacturer Transform your home security with the National Hardware N150-771 V820 Chain Bolt, a robust 6-inch door security solution engineered for maximum protection and peace of mind. This premium door lock latch combines traditional reliability with modern manufacturing excellence, creating an essential barrier against unauthorized entry while providing comprehensive door locks protection. Crafted from cold rolled steel and finished with zinc plating, this door chain lock delivers exceptional durability and corrosion resistance. The zinc-plated surface ensures long-lasting performance, making this chain lock for door applications an investment in your home security door lock infrastructure. Whether securing front door locks or adding protection to interior spaces, this door bolt provides reliable performance for all locks for doors needs. Designed specifically for in-swinging doors, this door security latch accommodates both right and left-hand applications, offering versatile installation options. The 6-inch door chain provides optimal security coverage while maintaining convenient operation as an effective latch lock system. Installation is straightforward and user-friendly, requiring basic tools and minimal technical expertise. This door security lock serves as an ideal complement to existing door locks, creating multiple layers of protection that significantly improve your home's overall security profile. The chain door lock mechanism allows you to partially open your door while maintaining a secure barrier, ideal for screening visitors or accepting deliveries safely. This door safety latch gives you complete control over access. National Hardware brings over a century of manufacturing expertise to this door bolt lock, representing a legacy of innovation in door latches and security solutions. This surface bolt integrates seamlessly with standard door configurations while providing professional-grade security locks for doors inside performance. Review: Better than expected. - Although it looks like cheap Chinese junk online, in reality it is very well made and sturdy. You can easily switch the direction of the angled strike making it useful for various angles and directions. It's not as good as the old USA versions with the square casing, but it should do the job. Review: Barn door latch - Easy to mount and worked well with 5 x10 ft barn doors- the draw chain does require an extension due the tall aspect of the door- but otherwise great product ## Features - SECURITY ENHANCEMENT: This 6 inch zinc-plated chain bolt provides reliable door security for in-swinging doors, featuring cold rolled steel construction that delivers long-lasting durability and protection against unauthorized entry. - VERSATILE INSTALLATION: Compatible with both right and left hand door applications, this door lock latch offers flexible mounting options while maintaining consistent performance for enhanced home security door lock needs. - DURABLE CONSTRUCTION: Manufactured from premium cold rolled steel with zinc plating finish, this door bolt lock resists corrosion and wear while providing dependable strength for daily use in residential door locks. - PRIVACY PROTECTION: Functions as an effective door chain lock that allows controlled door opening for visitor identification while maintaining security, ideal for front door locks and interior door safety latch applications. - COMPLETE HARDWARE: Single-pack door security latch includes all necessary mounting components for straightforward installation, designed specifically for in-swinging doors to maximize door security and safety locks for doors. - Manufactured from cold rolled steel - Use on in-swinging doors only - Provides privacy and added security ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000BD8J9U | | Best Sellers Rank | #92,854 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #210 in Door Latches & Bolts | | Brand | National Hardware | | Color | Zinc plated | | Compatible Groove Diameter | 2.13 inches | | Customer Reviews | 4.4 out of 5 stars 389 Reviews | | Exterior Finish | Zinc | | Fastener Size | Small | | Fastener Type | Hexagon Bolt | | Finish Types | Zinc plated | | Global Trade Identification Number | 00038613150775 | | Grade Rating | Grade 2 | | Head Style | Hex | | Head Type | Hex | | Included Components | Industrial Safety Chain Barriers | | Item Dimensions | 11.6 x 4.5 x 3.4 inches | | Item Hardness | Grade 2 | | Item Highlight | Cold-Rolled Steel Security Latch for In-Swinging Doors | | Item Type Name | Chain Bolt In Zinc Plated | | Manufacturer | National Hardware | | Manufacturer Grade | Grade 2 | | Material | Alloy Steel, Zinc | | Material Type | Alloy Steel, Zinc | | Metal Type | Zinc | | Model | N150-771 | | Number Of Items | 1 | | Number of Packs | 1 | | Number of Pieces | 1 | | Part Number | N150-771 | | Screw Head Style | Hex | | Set Screw Thread Type | Metric | | Size Name | 6" | | Thread Coverage | Partially Threaded | | Thread Size | #0-80 | | Thread Style | Left Hand | | Thread Type | Metric | | UPC | 038613150775 | | Unit Count | 1 Count | ## Images ![National Hardware Chain Bolt, 6 in, Steel, Zinc Plated - Image 1](https://m.media-amazon.com/images/I/41AtTEPp9IL.jpg) ![National Hardware Chain Bolt, 6 in, Steel, Zinc Plated - Image 2](https://m.media-amazon.com/images/I/41poYH2R95L.jpg) ![National Hardware Chain Bolt, 6 in, Steel, Zinc Plated - Image 3](https://m.media-amazon.com/images/I/51UtishIVjL.jpg) ![National Hardware Chain Bolt, 6 in, Steel, Zinc Plated - Image 4](https://m.media-amazon.com/images/I/61xgAhpIj5L.jpg) ![National Hardware Chain Bolt, 6 in, Steel, Zinc Plated - Image 5](https://m.media-amazon.com/images/I/91Oh5L19yHL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Better than expected. *by Z***L on September 22, 2025* Although it looks like cheap Chinese junk online, in reality it is very well made and sturdy. You can easily switch the direction of the angled strike making it useful for various angles and directions. It's not as good as the old USA versions with the square casing, but it should do the job. ### ⭐⭐⭐⭐⭐ Barn door latch *by J***R on November 27, 2025* Easy to mount and worked well with 5 x10 ft barn doors- the draw chain does require an extension due the tall aspect of the door- but otherwise great product ### ⭐⭐⭐⭐ Strong *by M***G on March 18, 2026* Wet strong spring. Was too strong for my needs. Should be solid for a gate etc. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sn/products/15064137-national-hardware-chain-bolt-6-in-steel-zinc-plated](https://www.desertcart.sn/products/15064137-national-hardware-chain-bolt-6-in-steel-zinc-plated) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-10-25*