--- product_id: 133525088 title: "260pcs[9 Sizes] Black Starlock Internal Tooth Lock Washers Assortment Kit, M2/ M2.5/ M3/ M4/ M5/ M6/ M8/ M10/ M12" brand: "binifimux" price: "SAR 48" currency: SAR in_stock: true reviews_count: 13 category: "Binifi Mux" url: https://www.desertcart.com.sa/products/133525088-260pcs-9-sizes-black-starlock-internal-tooth-lock-washers-assortment store_origin: SA region: Saudi Arabia --- # 260pcs versatile sizes Organized labeled storage box 65Mn alloy steel strength 260pcs[9 Sizes] Black Starlock Internal Tooth Lock Washers Assortment Kit, M2/ M2.5/ M3/ M4/ M5/ M6/ M8/ M10/ M12 **Brand:** binifimux **Price:** SAR 48 **Availability:** ✅ In Stock ## Summary > 🔧 Lock it down with style — never worry about loose bolts again! ## Quick Answers - **What is this?** 260pcs[9 Sizes] Black Starlock Internal Tooth Lock Washers Assortment Kit, M2/ M2.5/ M3/ M4/ M5/ M6/ M8/ M10/ M12 by binifimux - **How much does it cost?** SAR 48 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.sa](https://www.desertcart.com.sa/products/133525088-260pcs-9-sizes-black-starlock-internal-tooth-lock-washers-assortment) ## 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 - • **Unyielding Grip:** Internal tooth design locks bolts and screws firmly, preventing loosening under vibration. - • **Premium Alloy Steel:** Crafted from durable 65Mn steel for long-lasting corrosion resistance and strength. - • **Complete Size Spectrum:** Nine essential metric sizes from M2 to M12 cover every fastening need with precision. - • **Ready-to-Use Assortment:** 260-piece kit neatly organized in a labeled storage box for instant access and efficiency. - • **Professional Matte Black Finish:** Sleek black coating adds a clean, modern look to your hardware setup. ## Overview The 260pcs Black Starlock Internal Tooth Lock Washers Assortment Kit offers nine metric sizes (M2 to M12) made from robust 65Mn alloy steel. Featuring an internal tooth design, these washers ensure secure fastening by preventing loosening in high-vibration environments. Packaged in a labeled storage box, this professional-grade kit is perfect for automotive, electronics, and DIY projects requiring reliable, durable hardware solutions. ## Description Package details: 15Pcs M12 x 25mm 15Pcs M10 x 20mm 20Pcs M8 x 18mm 20Pcs M6 x 16mm 30Pcs M5 x 12mm 40pcs M4 x 12mm 40pcs M3 x 9mm 40pcs M2.5mm 40pcs M2 Review: Sturdy Black Internal Tooth Washers That Hold Tight - The 260 pcs Black Starlock Internal Tooth Lock Washers Assortment Kit is a fantastic addition to my workshop! This set covers nine common metric sizes (M2 through M10), and the internal tooth design grips hardware securely to prevent loosening — perfect for automotive, electronics, and DIY projects. The black finish looks clean and professional, and each washer feels sturdy and well‑made. The assortment case is labeled and organized, making it easy to find the exact size I need without digging around. I’ve used them on bolts, screws, and assemblies that tend to vibrate, and they’ve held everything firmly in place every time. Overall, this kit offers excellent value, great quality, and unbeatable convenience. Whether you’re a hobbyist or a professional, it’s a reliable set to keep on hand! Review: Choice of sizes. - Seems to be quality, bought because of variety of sizes. Also needed the smallest size for the brake linkage on a r/c nitro car. ## Features - 【√√】Product name: Internal Tooth Washers - 【√√】Material: 65Mn Steel; √√Main Color: Black; - 【√√】Package: 260pcs x Starlock Washer in one storage box - 【√√】Include sizes: M2, M3 x 9mm, M4 x 12mm, M5 x 12mm, M6 x 16mm, M8 x 18mm, M10 x 20mm, M12 x 25mm ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07LC5TTNC | | Best Sellers Rank | #44,597 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #11 in Tooth Lock Washers | | Brand | binifiMux | | Color | Black | | Compatible Groove Diameter | 29.7 millimeters | | Customer Reviews | 4.6 out of 5 stars 563 Reviews | | Exterior Finish | Black | | Fastener Size | M2/ M2.5/ M3/ M4/ M5/ M6/ M8/ M10/ M12 | | Fastener Type | Internal Tooth Lock Washer | | Finish Types | black | | Item Dimensions | 5.51 x 2.76 x 0.71 inches | | Manufacturer | binifiMux | | Material | Alloy Steel | | Material Type | Alloy Steel | | Metal Type | 65Mn Steel | | Number Of Items | 260 | | Number of Pieces | 260 | | Part Number | CF-422 | | Screw Head Style | Internal Tooth Lock | | Set Name | 260pcs[9 Sizes] Black Starlock Internal Tooth Lock Washers Assortment Kit | | Size | M2, M2.5, M3, M4, M5, M6, M8, M10, M12 | | Size Name | M2, M2.5, M3, M4, M5, M6, M8, M10, M12 | | Thread Size | M2/ M2.5/ M3/ M4/ M5/ M6/ M8/ M10/ M12 | | UPC | 680727733919 | | Unit Count | 1 Count | | Warranty Description | Refund and return if broken or missing items. | | Washer Compatibility | metric bolts | | Washer Type | lock washers | ## Product Details - **Exterior Finish:** Black - **Fastener Size:** M2/ M2.5/ M3/ M4/ M5/ M6/ M8/ M10/ M12 - **Material:** Alloy Steel - **Size:** M2, M2.5, M3, M4, M5, M6, M8, M10, M12 - **Washer Type:** lock washers ## Images ![260pcs[9 Sizes] Black Starlock Internal Tooth Lock Washers Assortment Kit, M2/ M2.5/ M3/ M4/ M5/ M6/ M8/ M10/ M12 - Image 1](https://m.media-amazon.com/images/I/81nZa5+jjiL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Sturdy Black Internal Tooth Washers That Hold Tight *by E***R on December 31, 2025* The 260 pcs Black Starlock Internal Tooth Lock Washers Assortment Kit is a fantastic addition to my workshop! This set covers nine common metric sizes (M2 through M10), and the internal tooth design grips hardware securely to prevent loosening — perfect for automotive, electronics, and DIY projects. The black finish looks clean and professional, and each washer feels sturdy and well‑made. The assortment case is labeled and organized, making it easy to find the exact size I need without digging around. I’ve used them on bolts, screws, and assemblies that tend to vibrate, and they’ve held everything firmly in place every time. Overall, this kit offers excellent value, great quality, and unbeatable convenience. Whether you’re a hobbyist or a professional, it’s a reliable set to keep on hand! ### ⭐⭐⭐⭐⭐ Choice of sizes. *by C***S on May 3, 2026* Seems to be quality, bought because of variety of sizes. Also needed the smallest size for the brake linkage on a r/c nitro car. ### ⭐⭐⭐⭐⭐ Does what they need to do. *by K***Y on November 25, 2025* These works really well for retaining bolts and screws. If you need these I’d recommend them. ## Frequently Bought Together - 260pcs[9 Sizes] Black Starlock Internal Tooth Lock Washers Assortment Kit, M2/ M2.5/ M3/ M4/ M5/ M6/ M8/ M10/ M12 - Dorman 905-102 Automatic Transmission Shift Tube Compatible with Select Ford / Lincoln / Mercury Models - Ford 6L5Z-7379-A Spring --- ## 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.com.sa/products/133525088-260pcs-9-sizes-black-starlock-internal-tooth-lock-washers-assortment](https://www.desertcart.com.sa/products/133525088-260pcs-9-sizes-black-starlock-internal-tooth-lock-washers-assortment) --- *Product available on Desertcart Saudi Arabia* *Store origin: SA* *Last updated: 2026-08-26*