lukaisen 168PCS M4 Black Screws Assortment Kit, Carbon Steel Flat Head Countersunk Machine Bolts, Cross Drive Wood & Metal Fasteners Set (M4 x 6/8/10/12/14/16/18/20/25/30mm) for DIY, Furniture

• HIGH-TENSILE BLACK CARBON STEEL : Upgrade your project hardware with professional reliability. Formed from selected high-tensile carbon steel, each M4 machine screw features a precision-applied black oxide finish. This specialized treatment provides enhanced wear resistance and reliable corrosion protection for indoor woodworking, appliance maintenance, and light industrial tasks without fading or staining.
• 168PCS PRE-SORTED M4 ASSORTMENT : No more mid-project hardware store runs. This comprehensive fasteners set supplies 10 essential metric lengths ranging from M4x6mm up to M4x30mm in one compact box. It ensures you have the exact size required for thin panel backing, hinge mounting, or structural framing, with quantity distributions balanced to meet actual workshop demands.
• FLUSH COUNTERSUNK FLAT HEADS : Achieve a clean, professional aesthetic on every assembly. The flush countersunk flat head design allows these cross-drive bolts to sit completely level with or below the material surface. This eliminates snagging hazards and unappealing protrusions, making them the perfect solution for cabinet installation, furniture building, and bracket fixation.
• ANTI-STRIP DEEP CROSS DRIVE : Prevent the nightmare of rounded-off screw heads during critical installations. Engineered with deep-cut, precise cross recesses, our black fasteners deliver maximum torque transfer from your screwdriver. The clean, standardized threads prevent binding or cross-threading, allowing for smooth, uniform driving and repetitive removals during maintenance.
• ANTI-MIX COMPARTMENT STORAGE : Keep your workshop organized and mobile without the mess. Our heavy-duty transparent storage box features reinforced dividers that extend fully to the lid, preventing micro M4 screws from shifting between sections during transit. Complete with a clear, 1:1 size identification chart on the case for rapid, mistake-free selection.

Execute Every Repair and DIY Project with Professional Mechanical Precision Using the lukaisen 168-Piece M4 Black Fastener Set. Tired of looking at weak, stripped screws that ruin the finish of your furniture? Most standard hardware sets are made of soft, low-grade metal that rounds out under the slightest pressure, leaving you with stuck fasteners and damaged panels. The lukaisen 168PCS Carbon Steel Black Oxide M4 Screws Assortment Kit is specifically engineered for carpenters, technicians, and home improvement enthusiasts who refuse to compromise on structural integrity and sleek aesthetics. The Strength of Carbon Steel Paired with Sleek Black Oxide Coating Unlike shiny silver fasteners that stand out awkwardly against dark wood or metal frames, our screws feature an industrial black oxide finish. This is not just a surface paint that flakes off; it is a chemical treatment that integrates into the carbon steel body, offering reliable surface protection and a modern, stealth look. This high-tensile construction guarantees superior shear strength, making these M4 bolts highly dependable for both load-bearing furniture assemblies and precision electronic mounting brackets. Engineered to Eliminate Common Workshop Frustrations We analyzed the most frequent complaints regarding multi-size fastener kits to redesign this set. To combat the issue of mixed-up boxes during courier transport, our storage case features enhanced vertical dividing walls that lock tightly against the lid. Your M4x6mm screws will never slide into the M4x30mm compartment. Furthermore, the standardized cross-drive recess is machined deeper than average to ensure your screwdriver bits seat perfectly, virtually eliminating slipping and stripping even during high-torque manual driving. Balanced Distribution Portfolio (168 Essential Pieces): M4 x 6mm — 30 Pieces (Ideal for thin metal brackets and electronics) M4 x 8mm — 30 Pieces | M4 x 10mm — 20 Pieces M4 x 12mm — 20 Pieces | M4 x 14mm — 15 Pieces M4 x 16mm — 15 Pieces | M4 x 18mm — 10 Pieces M4 x 20mm — 10 Pieces | M4 x 25mm — 10 Pieces M4 x 30mm — 8 Pieces (Perfect for deep structural wood framing) Product Specifications & Usage Tips: This M4 metric hardware kit features a countersunk flat head design that sits completely flush with the material surface upon installation. Perfect for cabinetry, door hinges, 3D printing post-assembly, and automotive interior panels. Note: To maximize the lifespan of the drive recess and threads, always select the correct cross screwdriver bit size and avoid high-speed impact power drills.