--- product_id: 109553787 title: "Toilet Seat Replacement Back Nuts Bottom Fixing Bolt, Screw Washers Kit by AAN®" brand: "aan" price: "¥1553" currency: JPY in_stock: true reviews_count: 8 category: "Aan" url: https://www.desertcart.jp/products/109553787-toilet-seat-replacement-back-nuts-bottom-fixing-bolt-screw-washers store_origin: JP region: Japan --- # Heavy-duty bottom fixing bolts Precision-fit M5 screws Complete nut & washer kit Toilet Seat Replacement Back Nuts Bottom Fixing Bolt, Screw Washers Kit by AAN® **Brand:** aan **Price:** ¥1553 **Availability:** ✅ In Stock ## Summary > 🔧 Secure your throne with confidence—no more wobbles, just peace of mind! ## Quick Answers - **What is this?** Toilet Seat Replacement Back Nuts Bottom Fixing Bolt, Screw Washers Kit by AAN® by aan - **How much does it cost?** ¥1553 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/109553787-toilet-seat-replacement-back-nuts-bottom-fixing-bolt-screw-washers) ## Best For - aan enthusiasts ## Why This Product - Trusted aan brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision M5 Bolts:** Thinner, longer screws that fit snugly through compression parts for ultimate hold. - • **Trusted by DIY Pros:** Highly rated and preferred over top-fix alternatives for lasting performance. - • **Rock-Solid Stability:** Bottom fixing design eliminates wobble for a secure fit every time. - • **Heavy-Duty Durability:** Crafted from robust plastic materials that resist loosening over time. - • **Effortless Installation:** All-in-one kit with nuts, bolts, and washers for quick, no-fuss replacement. ## Overview The AAN® Toilet Seat Replacement Back Nuts Bottom Fixing Bolt Kit offers a durable, heavy-duty solution designed specifically for bottom fixing toilet seats. Featuring precision M5 bolts and a complete set of nuts and washers, this kit ensures a stable, wobble-free fit that outperforms typical top-fix options. Lightweight and easy to install, it’s the go-to choice for professionals and DIY enthusiasts seeking reliable, long-lasting toilet seat hardware. ## Description Free delivery and returns on all eligible orders. Shop Toilet Seat Replacement Back Nuts Bottom Fixing Bolt, Screw Washers Kit by AAN®. Review: Did the job. - Perfect for fixing a toilet seat. Much prefer these to top fix. Just bit expensive for what it is but not a lot of choice out there. Review: Did the job thanks, no more wobbling - This item did the job, bolt through means it can be tightened and no more wobbles. As noted in another review, the supplied bolts are M5 and as you can see are thinner and longer than the M6 supplied by Roper Rhodes with the loo seat (purchased at Costco) but the do the job. Being thinner the went through the rubber top fit compression items hence stopping movement side to side so I retained those top fix parts, top fix might be useful with some pans but I don’t like them if they’re not needed, just not as secure! ## Features - Replacement Nut, Bolts and Washers as shown in picture. - Suitable for bottom fixing seats. - Heavy duty material never get loose. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07P41VZPC | | Batteries Required? | No | | Batteries included? | No | | Best Sellers Rank | 56,530 in DIY & Tools ( See Top 100 in DIY & Tools ) 391 in Nut & Bolt Sets | | Colour | White | | Customer Reviews | 4.0 4.0 out of 5 stars (456) | | Date First Available | 25 Feb. 2019 | | Item Package Quantity | 1 | | Item Weight | 40 g | | Manufacturer | AAN | | Material | Plastic | | Number of Pieces | 1 | | Product Dimensions | 9 x 7 x 1 cm; 40 g | | Shape | Cylinder | | Style | Bottom Fix | ## Product Details - **Brand:** AAN - **Colour:** White - **Item weight:** 40 Grams - **Manufacturer:** AAN - **Material:** Plastic - **Shape:** Cylinder - **Style:** Bottom Fix ## Images ![Toilet Seat Replacement Back Nuts Bottom Fixing Bolt, Screw Washers Kit by AAN® - Image 1](https://m.media-amazon.com/images/I/41srZZ7K4gL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: Will they stop my toilet seat getting loose all the time** A: I DID NOT FIND THAT THESE STOPPED THE LOOSENING OFF PROBLEM AND IN THE END USED A SET OF THE OLD FASHIONED RUBBER CONES WITH WING NUTS AND STEEL WASHERS( ALL FOUND ON AMAZON) - NO MOVEMENT OF THE SEAT SINCE **Q: What are the length and diameter of the bolts?** A: Not sure they were too narrow for replacement of my toilet seat and I bought a new seat with fittments for less than the price of replacement fittings. **Q: Please send instructions** A: You don't need instructions it's logical ## Customer Reviews ### ⭐⭐⭐⭐⭐ Did the job. *by T***S on 22 April 2024* Perfect for fixing a toilet seat. Much prefer these to top fix. Just bit expensive for what it is but not a lot of choice out there. ### ⭐⭐⭐⭐ Did the job thanks, no more wobbling *by A***Z on 19 August 2024* This item did the job, bolt through means it can be tightened and no more wobbles. As noted in another review, the supplied bolts are M5 and as you can see are thinner and longer than the M6 supplied by Roper Rhodes with the loo seat (purchased at Costco) but the do the job. Being thinner the went through the rubber top fit compression items hence stopping movement side to side so I retained those top fix parts, top fix might be useful with some pans but I don’t like them if they’re not needed, just not as secure! ### ⭐⭐⭐⭐⭐ Good length screws *by J***O on 7 September 2024* Excellent that the screws are long enough and it's all pictured with a tape measure so you can get an idea of dimensions. Comes with a variety of washers. Helped solve the issue I had with a terrible toilet seat and fixture kit which came from a reputable high street shop. You may need to consider exactly what washers etc you'll need but this kit was perfect for me. ## Frequently Bought Together - Toilet Seat Replacement Back Nuts Bottom Fixing Bolt, Screw Washers Kit By AAN® - Toilet Seat Hinge Bolts Replacement Bolt Screws Washers Fixing Fitting Kit WC --- ## 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.jp/products/109553787-toilet-seat-replacement-back-nuts-bottom-fixing-bolt-screw-washers](https://www.desertcart.jp/products/109553787-toilet-seat-replacement-back-nuts-bottom-fixing-bolt-screw-washers) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-05-08*