1 5

M2.5x4mm Set Screws,50Pcs Allen Head Screws with Hex Wrench - size: M2.5x4mm(50Pcs)

M2.5x4mm Set Screws,50Pcs Allen Head Screws with Hex Wrench - size: M2.5x4mm(50Pcs)

$12.10 USD
$12.10 USD
Sale Sold out
Taxes included. Shipping calculated at checkout.

About this item

  • High-quality material: Our M2.5 headless allen screw bolts are made of high-quality 304 Stainless Steel with high hardness, good rust resistance and durability. It has good corrosion resistance and can be used for a long time
  • M2.5-0.45 cup point set screw Specification : Thread Diameter, M2.5mm; Thread Pitch, 0.45mm; Total Length, 4mm(Head Included); Drive Type, Allen Hex Socket,See the second picture for more data.
  • Widely used: M2.5x4 screw without head are widely used in for Home Repair, door handles, Install Door Lock, Repair Furniture, Electronic Product, toilet paper holder,, Fixtures ,shower knob,DIY.
  • Well-made M2.5 screws: M2.5x4mm hex socket grab screw are designed with hex socket drive, providing greater torque and more stable performance. These M2.5 bolts have clean threads, uniform pitch, no residual burrs and accurate dimensions.
  • Package Included: You will get 50pcs M2.5x4 Set Screws and 1pcs hex spanner.We promise a 36-month warranty, if you have any problems, please feel free to contact us, we will solve your problem within 24 Hours.

Overview

  • Material: Stainless Steel
  • Head Style: Headless
  • Item dimensions L x W x H: 0.39 x 0.39 x 0.39 inches
  • Exterior Finish: Stainless Steel
  • Thread Size: m2.5-0.45

Low stock: 10 left

View full details

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.

New Arrivals

View all

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.

Blog posts

View all
  • Arduino Wiring Errors: 7 Mistakes Beginners Make and How to Fix Them

    Arduino Wiring Errors: 7 Mistakes Beginners Mak...

    Troubleshooting Arduino wiring errors becomes easier when you know where to look first. Learn how to identify common breadboard, power, polarity, grounding, and pin-assignment mistakes in beginner electronics projects

    Arduino Wiring Errors: 7 Mistakes Beginners Mak...

    Troubleshooting Arduino wiring errors becomes easier when you know where to look first. Learn how to identify common breadboard, power, polarity, grounding, and pin-assignment mistakes in beginner electronics projects

  • The Beginner’s Wiring Mistakes That Can Quietly Break an Arduino Project

    The Beginner’s Wiring Mistakes That Can Quietly...

    Learn how to troubleshoot common Arduino wiring errors in beginner electronics projects. Discover practical breadboard, LED, sensor, power, and grounding checks that make STEM maker projects easier to debug.

    The Beginner’s Wiring Mistakes That Can Quietly...

    Learn how to troubleshoot common Arduino wiring errors in beginner electronics projects. Discover practical breadboard, LED, sensor, power, and grounding checks that make STEM maker projects easier to debug.

  • Arduino Wiring Errors: A Step-by-Step Guide to Finding the Fault Before Rebuilding Everything

    Arduino Wiring Errors: A Step-by-Step Guide to ...

    Learn how to troubleshoot common Arduino wiring errors with a practical step-by-step process covering power, ground, breadboards, LEDs, sensors, signals, and testing. Build stronger electronics skills while turning circuit failures...

    Arduino Wiring Errors: A Step-by-Step Guide to ...

    Learn how to troubleshoot common Arduino wiring errors with a practical step-by-step process covering power, ground, breadboards, LEDs, sensors, signals, and testing. Build stronger electronics skills while turning circuit failures...

1 3
View all