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1140PCS M3 Screws Assortment Kit, M3x5/6/8/10/12/14/20/25 mm Hex Socket Head Bolts, Nuts & Washers Assorted Set - 12.9 Alloy Steel Black Zinc Plated M3 Screw for 3D Printer,DIY - size: M3 x 5/6/8/10/12/14/20/25-1140Pcs

1140PCS M3 Screws Assortment Kit, M3x5/6/8/10/12/14/20/25 mm Hex Socket Head Bolts, Nuts & Washers Assorted Set - 12.9 Alloy Steel Black Zinc Plated M3 Screw for 3D Printer,DIY - size: M3 x 5/6/8/10/12/14/20/25-1140Pcs

$16.58 USD
$16.58 USD
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About this item

  • 【Standardized Metric Sizes】The M3-0.5 hex socket head cap screws set comes with 8 commonly used lengths—M3×5mm, M3×6mm, M3×8mm, M3×10mm, M3×12mm, M3×14mm, M3×20mm, and M3×25mm—ideal for routine installations and repairs. They meet standard metric specifications, with an average error of less than 0.01mm.
  • 【Premium 12.9 Grade Alloy Steel】This M3 bolt, nut, and washer assortment kit is crafted from high-strength 12.9-grade alloy steel, ensuring exceptional durability and load-bearing capacity. The high-strength steel resists wear, corrosion, and heavy loads, making it ideal for harsh environments.
  • 【Wide Applications】Our metric bolt and nut sets come in boxes with thick, fixed dividers. Both internal and external labels mark the corresponding screw sizes and quantities for easy storage and access. The sleek box is convenient to carry in your daily tool bag, and also makes a great gift for professionals and hobbyists who regularly repair furniture, cars, and more.
  • 【Easy to Use】This M3 screw kit is ideal for daily furniture assembly and mechanical repairs. When using it, simply pick up the screws with tweezers, insert them into the hardware that needs to be connected, then tighten them with the included M3 wrench. Finally, install the nuts and flat washers to prevent loosening. Disassembly is just as easy—simply unscrew in the opposite direction.
  • 【Smart Storage Box】The metric machine screw kit comes in a durable, compartmentalized case with clear size labels—so you can spot the right screw instantly. It keeps your workspace tidy and speeds up project progress, making every job smoother.

Overview

  • Size: M3 x 5/6/8/10/12/14/20/25-1140Pcs
  • Color: Black
  • Material: Carbon Steel
  • Brand: AvrestYPT
  • Item dimensions L x W x H: 4.9 x 3 x 0.7 inches

Low stock: 10 left

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Reviews

  • ⭐⭐⭐⭐⭐

    Hannah Miller — Seattle, Washington
    I ordered several science activity supplies for projects at home. The product descriptions made it easier to compare the available options, and everything fit neatly into our learning space. Stemora made finding tools for hands-on activities feel simple and organized.

  • ⭐⭐⭐⭐⭐

    Daniel Foster — Austin, Texas
    I found a useful selection of electronics and robotics accessories for a beginner project. It was convenient to browse related components in clearly organized categories. I would consider shopping here again when planning another maker activity.

  • ⭐⭐⭐⭐⭐

    Lauren Bennett — Denver, Colorado
    The measurement and observation tools I selected worked well for the classroom activities I had planned. I especially appreciated being able to review the product details before ordering and choose items that matched the lesson requirements.

  • ⭐⭐⭐⭐⭐

    Jason Parker — Portland, Oregon
    I purchased a few storage items and small tools for organizing my maker workspace. The products helped keep components, wires, and project materials easier to sort and access. The overall shopping experience was straightforward and convenient.

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FAQ

What types of products does Stemora offer?


Stemora offers supplies for science experiments, microscopy, biology learning, measurement, laboratory organization, electronics, robotics, coding education, 3D printing, maker projects, and classroom activities. Available products and specifications may change over time.

Are Stemora products suitable for children?


Recommended ages vary by product. Please review the product description, manufacturer guidance, included warnings, and required skill level before purchasing. Products containing small parts, tools, electrical components, glass, or chemicals may not be suitable for young children.

Is adult supervision required?


Adult supervision is recommended for children and students, especially when using electrical components, sharp tools, heated equipment, glassware, small parts, or experiment materials. Customers are responsible for following all product instructions and safety precautions.

Can these products be used at home and in classrooms?


Many products may be suitable for classrooms, home learning, science projects, maker spaces, and hobby activities. Suitability depends on the specific product, learning environment, user experience, and intended activity.

How can I check what is included with a product?


Please review the product title, description, specifications, images, package quantity, and included-components section before ordering. Items shown for demonstration or scale in product images may not always be included.

How do I know whether an electronic or robotics part is compatible?


Check the listed dimensions, voltage, connector type, board compatibility, operating requirements, and supported platforms. Compatibility is not guaranteed unless it is specifically stated on the product page. Contact us before ordering if you need clarification.

When will I receive tracking information?


Tracking information is generally provided within 3–5 business days after an order is confirmed. In some cases, processing may take approximately 7–8 business days. Delivery may require an additional 4–5 business days after tracking becomes available, depending on the carrier and destination.

Why did my order arrive in separate packages?


Products in the same order may be shipped from different fulfillment locations. As a result, items may arrive separately and have different tracking numbers. You will not be charged additional shipping fees solely because an order is divided into multiple packages.

Can I change or cancel my order?


Contact us as soon as possible at vaioamaonaoak@gmail.com. We will try to assist, but changes or cancellations cannot be guaranteed once an order has entered processing or has been shipped.

What should I do if an item arrives damaged, defective, or incorrect?


Contact us promptly at vaioamaonaoak@gmail.com with your order number, a description of the issue, and clear photographs of the item, packaging, and shipping label. Please retain the product and original packaging while we review your request. Eligibility and available resolutions are subject to our Return & Refund Policy.

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