--- product_id: 666132518 title: "M6 x 30mm 50PCS Black Zinc Plated Hex Socket Cap Bolts Crib Bolts and Barrel Nuts Cross Dowel Replacement for Crib Cots Beds Chair Table Desk Furniture" brand: "mardatt" price: "NT$610" currency: TWD in_stock: true reviews_count: 5 category: "Mardatt" url: https://www.desertcart.tw/products/666132518-m6-x-30mm-50pcs-black-zinc-plated-hex-socket-cap store_origin: TW region: Taiwan --- # M6 x 30mm precision bolts 51-piece complete assembly kit Black zinc corrosion resistance M6 x 30mm 50PCS Black Zinc Plated Hex Socket Cap Bolts Crib Bolts and Barrel Nuts Cross Dowel Replacement for Crib Cots Beds Chair Table Desk Furniture **Brand:** mardatt **Price:** NT$610 **Availability:** ✅ In Stock ## Summary > 🔧 Bolt up your space with style and strength — don’t let your furniture settle for less! ## Quick Answers - **What is this?** M6 x 30mm 50PCS Black Zinc Plated Hex Socket Cap Bolts Crib Bolts and Barrel Nuts Cross Dowel Replacement for Crib Cots Beds Chair Table Desk Furniture by mardatt - **How much does it cost?** NT$610 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/666132518-m6-x-30mm-50pcs-black-zinc-plated-hex-socket-cap) ## Best For - mardatt enthusiasts ## Why This Product - Trusted mardatt brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Versatile Application:** Ideal for cribs, desks, chairs, wardrobes, and more—professional-grade fasteners for your home or office projects. - • **All-in-One Convenience:** Includes 25 bolts, 25 barrel nuts, plus a hex key—everything you need to upgrade or repair in one sleek package. - • **Effortless Installation:** Hex socket design allows quick, hand-friendly tightening with included Allen key—no extra tools required. - • **Engineered for Endurance:** Premium alloy steel with black zinc plating ensures rust-free, long-lasting strength for your furniture joints. - • **Precision Fit Every Time:** Standardized M6 threading pairs perfectly with barrel nuts for secure, wobble-free assembly. ## Overview This 51-piece M6 x 30mm hex socket cap bolt and barrel nut set features black zinc plating for superior corrosion resistance and durability. Crafted from premium alloy steel, these bolts provide precise, standardized threading for secure furniture assembly. Perfect for professional or home use, the set includes all necessary components plus a hex key for easy installation, making it the ultimate upgrade for cribs, desks, chairs, and more. ## Description ♞Mardatt M6 Black Zinc Plated Hex Socket Head Furniture Screws Bolts and Barrel Nuts 👌Specifications: ◆Color: Black ◆Finish: Zinc ◆Material: Strong Metal ◆Type: Hex Socket Head Bolts ◆Sizes of Bolts: M6 x 30mm ◆Sizes of Barrel Nuts: M6 x 12mm 👌Key Features: ★Premium Product - Crafted of strong metal, they are tough, solid and stable, built to handle heavy loads. ★Nicely Finished Surface - Its surface is treated by zinc plating and is odorless. Flat round head makes it more beautiful after installation. ★Precise and Make A Strong Joint - Each Bolt and nut accords with standardized metric system, offering a good match between bolt and barrel nuts. 👌Package Included: 25 x M6*30mm Bolts 25 x M6*12mm Barrel Nuts 1 x hex key Total: 51pcs ✎✎Friendly Customer Service If for any reason you are not fully satisfied with your purchase, please don’t hesitate to contact us at any time. We would reply within 12-hour and solve all the problems to your satisfaction:) ♥Warm Tips: 1. Please check the 2nd picture for the detailed dimensions of the product before purchase. 2. Small parts, keep away from children under 6 years old. Review: Great looking, and somehow: they smell nice? - I love that these come in black colour. They are great to use, and weirdly, they seem to smell like vanilla? Review: Great Value - Nice box and an Allen key. I needed (4) 75mm, and as these are impossible to find and at $8.99 for just (2) 60mm varieties at big box stores, with 140 pieces the order has already paid for itself. ## Features - ✧【WHAT YOU GET】----- These hex socket cap bolts come with the matching barrel nuts to hold the bolt in place. Total 50pcs. Plus, 1pc hex key is included, offering ease of use by hand. Once they are installed, they would make strong joints for your furniture. - ✧【PREMIUM MATERIAL】----- Made of Strong Metal, the black zinc-plated protective coating make these screws able to resist corrosion and rust, ensuring long-term durability in dry, indoor conditions. Besides, they features accurate threads, solid construction and smooth surface without burrs, which greatly enhance their performance. - ✧【PRODUCT TYPE】----- Black Zinc-Plated M6 x 30mm Hex Socket Bolts and Barrel Nuts. Drive Type: Hex Socket; Head Style: Flat Round Head; All accords with standardized metric system. Accurate, tough and tight. FOR THE DETAILED DIMENSIONS, PLEASE CLICK THE 2ND PICTURE. - ✧【WIDELY USED】----- These sturdy fastener make great replacement in your various professional or household assembly such as cribs, chairs, desk, cabinets, wardrobes, bunk beds, headboards, cupboards etc. Our screws will join securely and get the job done! - ✧【Friendly Customer Service】----- If for any reason you are not fully satisfied with your purchase, please don’t hesitate to contact us at any time. We would reply within 12-hour and solve all the problems to your satisfaction:) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08LFVZ11J | | Best Sellers Rank | #23,892 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #56 in Socket Cap Screws | | Brand | Mardatt | | Color | Black | | Colour | Black | | Compatible Groove Diameter | 6 Millimeters | | Customer Reviews | 4.4 out of 5 stars 114 Reviews | | Fastener Type | bolts | | Fastener type | bolts | | Finish Types | Zinc | | Grade Rating | industrial | | Head style | Flat Round | | Item Diameter | 6 Millimeters | | Item Shape | Hexagonal | | Manufacturer | Mardatt | | Material | Alloy Steel | | Material Type | Alloy Steel | | Model | M-BZ-JiaJuLuoSi | | Number Of Items | 51 | | Number of Pieces | 51 | | Outside Diameter | 6 Millimeters | | Part Number | M-49 | | Screw Head Style | Flat Round | | Set Name | M6 x 30mm Hex Socket Cap Bolts and Barrel Nuts Set (50 Piece) | | Size | M6 x 30mm (25 Sets) | | Size Name | M6 x 30mm (25 Sets) | | Thread Size | M6 | | UPC | 798789765370 | | Unit Count | 51 Count | ## Product Details - **Brand:** Mardatt - **Color:** Black - **Fastener Type:** Hex - **Material:** Steel - **Size:** M6 x 40mm ## Images ![M6 x 30mm 50PCS Black Zinc Plated Hex Socket Cap Bolts Crib Bolts and Barrel Nuts Cross Dowel Replacement for Crib Cots Beds Chair Table Desk Furniture - Image 1](https://m.media-amazon.com/images/I/71fzbPCi2pL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great looking, and somehow: they smell nice? *by A***K on 21 May 2025* I love that these come in black colour. They are great to use, and weirdly, they seem to smell like vanilla? ### ⭐⭐⭐⭐⭐ Great Value *by M***H on 16 October 2021* Nice box and an Allen key. I needed (4) 75mm, and as these are impossible to find and at $8.99 for just (2) 60mm varieties at big box stores, with 140 pieces the order has already paid for itself. ### ⭐⭐⭐⭐⭐ Perfect replacement part for my bike! *by M***E on 20 October 2025* These seem like they would be great for whatever real purpose they're meant for, but I purchased them to replace a lost screw on the kickstand of my Merida Crossway 100 bicycle from 8-9 years ago, for which it's a perfect fit. --- ## 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.tw/products/666132518-m6-x-30mm-50pcs-black-zinc-plated-hex-socket-cap](https://www.desertcart.tw/products/666132518-m6-x-30mm-50pcs-black-zinc-plated-hex-socket-cap) --- *Product available on Desertcart Taiwan* *Store origin: TW* *Last updated: 2026-09-27*