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300PCS M3 Brass Male-Female Hex Standoffs, Screws Nuts & Washers Kit - size: M3

300PCS M3 Brass Male-Female Hex Standoffs, Screws Nuts & Washers Kit - size: M3

$23.22 USD
$23.22 USD
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Taxes included. Shipping calculated at checkout.

About this item

  • All-in-One 300PCS M3 Brass Male-Female Hex Standoff & Fastener Assortment:This matching PCB spacer kit adopts standard M3 0.5mm metric thread, total 300 pieces. Brass male-female standoff sizes:6+6/8+6/10+6/12+6/15+6/18+6/20+6/25+6mm (15pcs each). Supporting hardware includes 30pcs M3 pan head screws, 30pcs M3 flat head screws, 60pcs M3 hex nuts and 60pcs red steel paper flat washers. Hex standoff across flat width:4.6mm, ideal layered spacing for circuit boards
  • Corrosion Resistant Premium Mixed Materials:Threaded standoffs are made of solid brass with stable conductivity and rust resistance; screws and hex nuts adopt 304 stainless steel for long-term anti-rust performance. Red steel paper washers buffer pressure, prevent surface scratch and reduce vibration between circuit boards, fit daily electronic assembly environments
  • Hex Male-Female Threaded Spacing Structure:Both ends feature identical M3 internal and external threads for stacking multi-layer PCBs. Hex flat sides enable stable clamping with wrenches to avoid rotation during tightening, easy to adjust board clearance for heat dissipation and component isolation
  • Dual-Type Phillips Mounting Screws Included:Comes with two universal cross-head screw styles:pan head for conventional fixed installation; flat countersunk head for flush smooth surface mounting, covering most circuit board assembly requirements.
  • Classified Storage Case & Wide Electronic Application Scenarios:Packed in transparent divided plastic storage box for quick size identification and anti-loss. Widely used for Raspberry Pi, Arduino, FPV quadcopter drone, communication equipment, medical devices, office machinery, circuit board DIY and electronic maintenance projects

Overview

  • Size: M3
  • Color: Gold
  • Material: Brass, Stainless Steel 304
  • Brand: HVAZI
  • Item dimensions L x W x H: 5 x 3.5 x 1 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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