6x14mm Short Expansion Screw Set, Door Hinge Thread Repair Screws & Expansion Anchor Set for Cabinet Hinge Repair & Stripped Thread Restoration (30 Sets)What hole size do I need to drill?A: Drill a 6mm hole at least 15mm deep before inserting the expansion anchor.Can this fix a loose cabinet hinge?A: Yes, it's specifically designed to restore stripped screw holes in cabinets, wardrobes, and doors.Is the material rust-resistant?A: The zinc-plated iron construction offers corrosion resistance for high-moisture kitchens and bathrooms.How does the expansion lock work?A: As you tighten the screw, the serrated anchor expands to create a robust inner hole grip.Can I use this on drywall or concrete?A: Yes, it works on wood, drywall, concrete, tile, stone, and hollow walls.Features:1. Stripped hole restoration for loose cabinet hinges, stop sagging and wobbling.2. Premium zinc-plated iron for corrosion resistance in high-moisture environments.3. Serrated expansion anchor design that expands automatically when tightening.4. Universal multi-surface compatibility: wood, drywall, concrete, tile, stone.5. Easy 4-step DIY installation: drill, insert anchor, align, tighten screw.Specifications:Product Name: Short Expansion Screw SetMaterial: Zinc-plated ironSize: 6 x 14 mmFastener Type: BoltPackage Includes:30 Sets of 6x14mm Expansion Screws (each set: 1 anchor + 1 screw)【Stripped Hole Restoration】Delivers instant repair for worn loose mounting holes to stop sagging, wobbling, or falling-off cabinet hinges【Premium Zinc-Plated Durability】Constructed from high-strength corrosion-resistant zinc-plated iron for long-term stable fastening in kitchens and bathrooms【Powerful Expansion Lock Grip】Serrated expansion anchor design expands automatically as you tighten the screw to create robust inner hole holding power【Universal Multi-Surface Compatibility】Works seamlessly across wood, ceramic tile, stone, concrete, hollow wall and drywall for various household repairs【Easy 4-Step DIY Installation】Drill a 6 mm hole at least 15 mm deep, insert anchor, align hardware and tighten the screw for solid mounting