--- product_id: 58667263 title: "100Pcs M3 x 0.5mm Lock Nuts - 304 Stainless Steel Self-Lock Nylon Inserted 3mm Nylock Nuts for RC Model, 3D Printer" brand: "binifimux" price: "8308CFA" currency: XOF in_stock: true reviews_count: 10 category: "Binifi Mux" url: https://www.desertcart.sn/products/58667263-100pcs-m3-x-0-5mm-lock-nuts-304-stainless-steel store_origin: SN region: Senegal --- # 100 pcs M3 x 0.5mm lock nuts Nylon-inserted self-locking grip 304 stainless steel rust-proof durability 100Pcs M3 x 0.5mm Lock Nuts - 304 Stainless Steel Self-Lock Nylon Inserted 3mm Nylock Nuts for RC Model, 3D Printer **Brand:** binifimux **Price:** 8308CFA **Availability:** βœ… In Stock ## Summary > πŸ”§ Lock it down with confidence β€” never worry about loose connections again! ## Quick Answers - **What is this?** 100Pcs M3 x 0.5mm Lock Nuts - 304 Stainless Steel Self-Lock Nylon Inserted 3mm Nylock Nuts for RC Model, 3D Printer by binifimux - **How much does it cost?** 8308CFA 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/58667263-100pcs-m3-x-0-5mm-lock-nuts-304-stainless-steel) ## Best For - binifimux enthusiasts ## Why This Product - Trusted binifimux brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Built to Last, Rust-Free:** Crafted from premium 304 stainless steel, these nuts resist corrosion and maintain strength over time. - β€’ **Trusted by Makers & Pros:** Highly rated with 4.8 stars from 900+ users who rely on these nuts for precision and durability. - β€’ **Secure Locking Every Time:** Nylon insert provides reliable self-locking action, preventing loosening under vibration or stress. - β€’ **Bulk Pack with Smart Storage:** 100 pieces included in a durable plastic caseβ€”organized and ready for your next project sprint. - β€’ **Precision Fit for Pro Builds:** Metric M3 x 0.5mm thread pitch ensures seamless compatibility with your RC models and 3D printers. ## Overview The BinifiMux 100-piece M3 x 0.5mm lock nuts set features high-grade 304 stainless steel construction with nylon inserts for self-locking security. Designed for precision applications like RC models and 3D printers, these rust-resistant nuts come in a convenient storage case, combining durability, reliability, and professional-grade performance in one essential toolkit upgrade. ## Description Product description 304 Stainless Steel Metric Lock Nuts M2 / M2.5 / M3 / M4 / M5 / M6 / M8 / M14 304 Stainless Steel Imperial Lock Nuts 2-56 / 4-40 / 8-32 / 10-24 / 10-32, 1/2, 1/4, 3/8, 5/16 Black Metric Lock Nuts M2 / M2.5 / M3 / M4 / M5 / M6 / M8 and M2-M8 Assortment Kit Black Imperial Lock Nuts 4-40, 6-32, 8-32, 10-32, 1/4 Metric Nylock Size Map from M2 to M8 Size Map Nylon lock nuts differ from a standard hex nut in that they have a nylon insert secured within the nut. The nylon insert is located in a tapered section located at the back of the nut. When you install the nylon lock nut onto a bolt or threaded stud, the nylon insert wraps around the threads and locks the nut in place. This gives a nylon lock nut a distinct advantage over a lock washer when the bolt or threaded stud is subject to vibration, as the nylon lock nut is unaffected by vibration. How to Use a Nylon Lock Nut Examine the nylon insert of the nylon lock nut to ensure that the insert is not damaged. Thread the nylon lock nut onto the bolt or threaded stud and turn the nut clockwise with your hand until it no longer turns. This will be the point that the nylon insert contacts the top thread of the fastener. Place the socket that matches the nylon lock nut on the 3/8 inch drive ratchet. Slide the socket onto the nylon lock nut and turn the handle of the ratchet clockwise to turn the nylon lock nut onto the fastener. You will feel some resistance from the nylon lock nut as you turn it onto the fastener. This is created by the nylon insert and is completely normal. Continue turning the ratchet handle until the nylon lock nut seats tightly against the surface of the material you are securing with the nut. Inspect the nylon insert of the lock nut to ensure that it is intact after installation. Applications Nylon lock nuts are used across a wide variety of industries , including in appliances , computers , furniture , medical equipment , vehicles , sheet metal , and aircraft . Heavier nylon insert lock nuts are used in buildings , on bridges , and in railroad equipment . Review: Perfect! - They work way good! No complaints Review: Reliable and Effective - I recently purchased the 100-piece set of M3 x 0.5mm 304 Stainless Steel Self-Lock Nylon Inserted Hex Lock Nuts for a project, and they have performed admirably. These lock nuts are well-constructed, showcasing both the durability and quality I was looking for. The locking capability of these nuts is quite decent. The nylon inserts provide a good grip and ensure that the nuts stay in place once tightened. This feature gives me confidence in the security and stability of the connections in my projects. Additionally, the stainless steel material adds an extra layer of durability, making these nuts suitable for various applications where strength and longevity are required. Overall, I'm satisfied with these hex lock nuts. They are effective, reliable, and offer good value for the price. For anyone in need of quality self-locking nuts for their DIY or professional projects, I would recommend giving these a try. ## Features - [Package] Contains 100 pieces M3-0.5mm lock nuts,coming with one plastic storage case which perfect for store for long time usage - [Dimensions] The thread is metric 3mm with 0.5mm pitch and a total height of 4mm, hex height is about 2.4mm, angle to angle distance is 5.3mm, fit 5.5mm hex spanner, you could check size details by picture 2 more clearly - [High-Quality Stainless Steel] Crafted from high-quality stainless steel with plain finish, this acorn nut is rust-proof, tough, and durability - [Easy Installation] This binifiMux lock nut is easy to install on screw ends for fastening bolts/ screws by thread inserted into nylon part - [Warranty and Service] Committed to best service to you if you have issues about units ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B075ZZW7VL | | Best Sellers Rank | #95,730 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #179 in Locknuts | | Brand | binifiMux | | Color | Silver | | Compatible Groove Diameter | 3 Millimeters | | Customer Reviews | 4.8 out of 5 stars 924 Reviews | | Drive Style | External Hex | | Exterior Finish | Plain | | Fastener Type | Lock | | Finish Types | Unfinished | | Grade Rating | Grade 8.8 / A2-70 | | Inside Thread Size | M3 | | Item Diameter | 3 Millimeters | | Manufacturer | binifiMux | | Material | Nylon, Stainless Steel | | Material Type | Nylon, Stainless Steel | | Metal Type | Stainless Steel | | Number Of Items | 100 | | Number of Pieces | 100 | | Part Number | XXF-117 | | Screw Head Style | Hex | | Set Name | binifiMux M3 Lock Nut Set (100 Piece) | | Size Name | M3 | | Thread Class | ISO | | Thread Coverage | Fully Threaded | | Thread Size | M3 x 0.5 | | Thread Style | Right Hand | | Thread Type | Metric 3mm | | UPC | 613852252062 | | Unit Count | 100.0 Count | ## Product Details - **Color:** Silver - **Exterior Finish:** Plain - **Fastener Type:** Lock - **Material:** Nylon, Stainless Steel - **Thread Size:** M3 x 0.5 ## Images ![100Pcs M3 x 0.5mm Lock Nuts - 304 Stainless Steel Self-Lock Nylon Inserted 3mm Nylock Nuts for RC Model, 3D Printer - Image 1](https://m.media-amazon.com/images/I/918updXAHrL.jpg) ![100Pcs M3 x 0.5mm Lock Nuts - 304 Stainless Steel Self-Lock Nylon Inserted 3mm Nylock Nuts for RC Model, 3D Printer - Image 2](https://m.media-amazon.com/images/I/51-D1sXOKRL.jpg) ![100Pcs M3 x 0.5mm Lock Nuts - 304 Stainless Steel Self-Lock Nylon Inserted 3mm Nylock Nuts for RC Model, 3D Printer - Image 3](https://m.media-amazon.com/images/I/71yqr7NV6eL.jpg) ![100Pcs M3 x 0.5mm Lock Nuts - 304 Stainless Steel Self-Lock Nylon Inserted 3mm Nylock Nuts for RC Model, 3D Printer - Image 4](https://m.media-amazon.com/images/I/71rguncEhaL.jpg) ![100Pcs M3 x 0.5mm Lock Nuts - 304 Stainless Steel Self-Lock Nylon Inserted 3mm Nylock Nuts for RC Model, 3D Printer - Image 5](https://m.media-amazon.com/images/I/71MHmCzTtwL.jpg) ## Questions & Answers **Q: Can anyone tell me whether or not these are endorsed by Dee?** A: sorry no **Q: Will these hold up in a engine bay? I need them for my emblem I am reinstalling.** A: I dont see why not. They are 304 stainless steel... **Q: Does anyone have the height, and width (flat to flat part) of these?** A: width of flat to flat is 6mm. height is 4mm. **Q: Will these work with m3x55mm screws?** A: yes it fit coz thread is metric 3mm with same pitch 0.5mm. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect! *by T***T on February 23, 2026* They work way good! No complaints ### ⭐⭐⭐⭐⭐ Reliable and Effective *by K***. on December 10, 2023* I recently purchased the 100-piece set of M3 x 0.5mm 304 Stainless Steel Self-Lock Nylon Inserted Hex Lock Nuts for a project, and they have performed admirably. These lock nuts are well-constructed, showcasing both the durability and quality I was looking for. The locking capability of these nuts is quite decent. The nylon inserts provide a good grip and ensure that the nuts stay in place once tightened. This feature gives me confidence in the security and stability of the connections in my projects. Additionally, the stainless steel material adds an extra layer of durability, making these nuts suitable for various applications where strength and longevity are required. Overall, I'm satisfied with these hex lock nuts. They are effective, reliable, and offer good value for the price. For anyone in need of quality self-locking nuts for their DIY or professional projects, I would recommend giving these a try. ### ⭐⭐⭐⭐⭐ Nice locking nuts great price *by M***U on February 16, 2026* Great low cost locking nuts. ## Frequently Bought Together - binifiMux 100Pcs M3 x 0.5mm 304 Stainless Steel Self-Lock Nylon Inserted Hex Lock Nuts, Self Clinching Nuts - uxcell 100Pcs M3x6mmx0.5mm Stainless Steel Metric Round Flat Washer for Bolt Screw --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sn/products/58667263-100pcs-m3-x-0-5mm-lock-nuts-304-stainless-steel](https://www.desertcart.sn/products/58667263-100pcs-m3-x-0-5mm-lock-nuts-304-stainless-steel) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-05-31*