Kadrick Metric Screw Assortment, 2000PCS Metric Bolt Assortment Kit M2 M3 M4 M5 Machine Screws with Lock & Flat Washers, Grade 10.9 Alloy Steel Hex

Kadrick Metric Screw Assortment, 2000PCS Metric Bolt Assortment Kit M2 M3 M4 M5 Machine Screws with Lock & Flat Washers, Grade 10.9 Alloy Steel Hex

【Product details】---Includes M2 / M3 / M4 / M5 metric screws. Thread pitch: 0.4mm (M2), 0.5mm (M3), 0.7mm (M4), 0.8mm (M5). Lengths: M2 (4/8/12/16mm), M3 (6/8/12/16mm), M4 & M5 (8/12/16/20mm). All sizes follow the standard metric system (ISO/DIN). Measured tolerance: M2 (+0.2/−0.5mm); M3–M5 (+0.2/−0.2mm). 【High quality】--- This screw assortment is made of 10.9 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. 【Can be widely used】Keep a set of commonly used Kadrick screw sets on hand to make you convenient. 【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. Product Overview
This metric screw assortment kit includes a total of 2000 pieces, covering commonly used sizes M2, M3, M4, and M5.
Each size and quantity is clearly organized according to the specification chart shown in the product images, allowing easy identification and efficient use during projects.

**Commonly Used for 3D Printing and DIY Projects**
The included screw sizes (M2–M5) are **frequently used in 3D printing, electronics assembly, and general DIY applications**.
These sizes are suitable for printer frames, enclosures, brackets, small mechanical assemblies, and hobby projects that require precise metric fasteners.

**Surface Treatment for Indoor Applications**
The screws feature **black zinc plating and black oxide surface treatment**, which are well suited for indoor projects and workshop environments.
This finish provides a clean appearance and helps reduce surface wear during regular use.

**Quality-Controlled Manufacturing**
All fasteners are manufactured in a facility compliant with **ISO/TS 16949 quality management standards**.
Each batch undergoes dimensional and thread accuracy inspection to ensure consistent fit and reliable installation.

**Upgraded Organization and Packaging**
To address common issues such as mixed sizes and unclear identification, the storage case has been upgraded with **clearly separated compartments and labeled sections**.
This improved organization helps reduce sorting time and keeps small fasteners securely in place during storage and transport.

**Suitable for Beginners and Regular Users**
With a balanced size range and organized layout, this assortment is suitable for users who need **ready-to-use metric screws for ongoing projects**, including beginners in 3D printing and experienced DIY users.