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#2-56#4-40#6-32 UNC Knurled Hex Socket Head Cap Screw & Nut Kit - size: #2-56UNC/#4-40UNC/#6-32UNC

#2-56#4-40#6-32 UNC Knurled Hex Socket Head Cap Screw & Nut Kit - size: #2-56UNC/#4-40UNC/#6-32UNC

$28.20 USD
$28.20 USD
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Taxes included. Shipping calculated at checkout.

About this item

  • All‑in‑One 360PCS #2‑56 #4‑40 #6‑32 UNC Hex Socket Head Cap Screw & Hex Nut Assortment:This multi‑spec imperial fastener kit contains full‑thread hex socket head cap screws and matching UNC hex nuts, total 360 pieces: #2‑56 (56TPI) Screws: 3/16",5/16",3/8",1/2" (20pcs each) | Hex Nuts:40pcs #4‑40 (40TPI) Screws: 1/4",3/8",1/2",5/8" (20pcs each) | Hex Nuts:40pcs #6‑32 (32TPI) Screws: 5/16",1/2",3/4",7/8" (20pcs each) | Hex Nuts:40pcs
  • All screws adopt standard right‑hand full coarse thread; length measured under cap head. Ideal for electronic equipment, precision instruments and lost miniature imperial screw replacement
  • Corrosion‑Resistant 304 Stainless Steel Construction:All socket head cap screws and Hex Nuts are manufactured from solid 304 stainless steel. It provides superior anti‑oxidation and chemical corrosion resistance and may be mildly magnetic. Burr‑free uniform coarse threads support repeated assembly and disassembly, more durable than carbon steel fasteners
  • Three Standard UNC Coarse Thread Specifications:Covers three widely used miniature imperial coarse threads: #2‑56 (56TPI), #4‑40 (40TPI), #6‑32 (32TPI). Full‑length thread ensures sufficient meshing depth with matched hex nuts, effectively resisting loosening caused by slight equipment vibration
  • Practical Internal Hex Socket Head Structure:Low‑profile round cap head fits narrow compact installation spaces. Built‑in internal hex drive fits regular allen wrenches tightly without slipping during torque tightening, perfect for compact electronic device internal assembly
  • Portable See‑Through Compartmentalized Plastic Storage Organizer:Equipped with split transparent plastic storage case. Screws and hex nuts of each thread spec are placed in independent separated compartments for instant size lookup. Compact lightweight box easy to carry for electronics repair shops, laboratory assembly and home DIY precision hardware projects

Overview

  • Size: #2-56UNC/#4-40UNC/#6-32UNC
  • Color: silver
  • Material: Stainless Steel 304
  • Brand: HVAZI
  • Item dimensions L x W x H: 1 x 1 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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