Contents
The Best M3 Screws And Nuts of 2023 – Reviewed and Top Rated
2,592 Reviews Scanned
- 【710PCS M3 Screw Kits 8 Length Options】: M3 Screw Assortment Kit including 8 versatile lengths: M3x6mm, M3x8mm, M3x10mm, M3x12mm, M3x16mm, M3x20mm, M3x25mm, M3x30mm. Metric screw assortment kit contains M3 screws, nuts, washers and corresponding 1 hexagonal wrenches. Tailored for complex projects requiring multiple fastening solutions.
- 【Precision Engineering for Flawless Fit】: Every screw adheres to metric standards with ±0.01mm tolerance, guaranteeing seamless compatibility with machinery, 3D printers, and DIY projects. Threads are laser-cut for smooth engagement, while nuts fit snugly without wobbling—saving time and reducing stripped threads.
- 【10.9 Grade Alloy Steel with Advanced Anti-Corrosion】:Crafted from high-strength 10.9-grade alloy steel, our screws are engineered for superior durability and fatigue resistance. The zinc-plated surface ensures oil-free, rust-proof protection, ideal for both indoor and outdoor applications. Our screws balance hardness and toughness, preventing brittleness in high-stress scenarios (eg：automotive or machinery repairs).
- 【Organized Storage & Professional-Grade Convenience】: Packed in a labeled, compartmentalized plastic case, each size is clearly marked for instant access. The reusable container doubles as a portable toolkit—perfect for technicians, hobbyists, or as a thoughtful gift. In order to better preservation, we also deliberately coated with a small amount of antirust oil, effective rust prevention at the same time more prolong the service life of the fasteners.
- 【 Effortless for Pros, Perfect for DIYers】:Install in seconds: Use the included hex wrench to tighten screws, add lock washers for anti-loosening, and disassemble with a simple reverse twist.Good assortment to have on hand for 3D printing DIY, RC hobbies, furniture, car repair and bike stand etc.
- Premium Quality: Made of 12.9 grade alloy steel, black oxide finish for high strength, corrosion resistance, and wear resistance.
- Complete Specifications: Includes 7 popular screw sizes (M3x6mm, M3x8mm, M3x10mm, M3x12mm, M3x16mm, M3x20mm, M3x25mm), 20pcs each size, 140pcs screws in total.
- Easy to Use: Hex socket head design for easy tightening with a hex wrench.
- Versatile: Suitable for various applications, including 3D printing, woodworking, machinery repair, DIY projects, etc.
- Convenient Storage: Comes with a plastic storage box for easy storage and organization.
- 【Premium M3 Countersunk Screw Assortment】This Kernmax's comprehensive 1120-piece set features high-quality M3 flat head screws and Phillips countersunk screws, perfect for professional and DIY use. The assortment includes a wide range of popular lengths 6mm/8mm/10mm/12mm/16mm/20mm/25mm.
- 【Durable & Rust-Resistant Construction】Our M3 screws countersunk are crafted from high-grade carbon steel and coated with a black zinc plating, offering superior corrosion resistance without any oily residue. This ensures a cleaner handling experience and long-lasting performance even in humid or demanding conditions.
- 【Secure Phillips Flat Head Design】Each Phillips flat head screw is designed with a precision-driven countersunk head and Phillips drive for smooth, flush installation into surfaces. Paired with matching hex nuts, this M3 bolts and nuts set ensures a firm, secure fit and reduces the risk of loosening over time.
- 【Versatile Flat Head Bolts and Nuts Set】Ideal for electronics, 3D printer projects, bicycles, automotive, and machinery repairs, this countersunk flat head hex bolt nut set provides the right fasteners for precise and sturdy assemblies. The variety of sizes in this M3 screw assortment makes it suitable for both delicate gadgets and heavier equipment.
- 【Organized Storage & Guaranteed Quality】All flat head screws with nuts and washers are neatly organized in a portable compartmentalized case with clear labels for easy access. Backed by 24-hour responsive customer support, this M3 screws and nuts kit offers reliability and convenience for all your projects.
- 【Suitable for small DIY projects】 These small screws and nuts are especially suitable for 3D printing DIY and RC car enthusiasts.
- 【Not oily and rust proof】 These black zink plated finish screws are not oily, they will not dirty your hands or DIY items, and the rust proof performance is better than other oiled screws.
- 【Good Storage and assortment】All these screws are sacked in a sturdy easy-use plastic storage box, organized Conveniently and Easily.
- 【Easy to operate and strong】 Hex socket head cap screws can be screwed into the nut directly by hand without a wrench, Grade 12.9 alloy steel screws are ultra-high strength and not easy to break.
- 【Brand guarantee】: Kadrick specializes in the production and development of fasteners. Our products have undergone rigorous testing, so you can use them with confidence. Additionally, we provide a 24-month after-sales warranty service. If you have any questions, please feel free to contact us.
- 【Suitable for small DIY projects】 These small screws and nuts are especially suitable for 3D printing DIY and RC car enthusiasts.
- 【High quality】--- This screw assortment is made of 10.9 &12.9 grade alloy steel with high strength and precise threads.
- 【Good storage and assortment】All These Screws are Packed In a Sturdy Easy-use Plastic Storage Box, Organized Conveniently and Easily.
- 【Two head types】There are two different head types, button head and cup head, which are the two most commonly used head types and are widely used in DIY projects.Keep a set of commonly uesd Kadrick screws on hand to make your work easier.
- 【Brand guarantee】Kadrick specializes in the production and development of fasteners. Our products have undergone rigorous testing, so you can use them with confidence. Additionally, we provide a 24-month after-sales warranty service. If you have any questions, please feel free to contact us.
Last update on 2025-11-04 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API
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FAQ:
Q: Where can I get m3 nuts for free?
A: M3 – Nuts – Fasteners – The Home Depot Get free shipping on qualified M3 Nuts or Buy Online Pick Up in Store today in the Hardware Department. #1 Home Improvement Retailer
Q: Are there any metric screws that are hard to remove?
A: Their tamper-resistant Torx drive (also known as a pin-in Torx drive) makes them difficult to remove without special tools. These metric screws have a drilled spaner drive, making them difficult to remove without special tools. Made from 18-8 stainless steel, they have good chemical resistance and may be mildly magnetic.
Q: Which is better stainless steel or metric screws?
A: Made from 18-8 stainless steel, these metric pan head screws have good chemical resistance and may be mildly magnetic. These metric 316 stainless steel screws resist corrosion from chemicals and salt water better than 18-8 stainless steel screws. They may be mildly magnetic.
Q: What kind of material are metric screws made of?
A: Made from nylon, these metric screws are chemical and oil resistant, nonconductive, and lightweight. Exposure to moisture may cause them to expand. These metric PTFE screws withstand harsh chemicals and temperatures from -100° F to 500° F. They are nonconductive, lightweight, and resist wear due to their slippery surface.