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260PCS #4-40 UNC 304 SS Button-Head Socket Cap Screws & Hex Nuts Kit - size: #4-40 UNC

260PCS #4-40 UNC 304 SS Button-Head Socket Cap Screws & Hex Nuts Kit - size: #4-40 UNC

$20.90 USD
$20.90 USD
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Taxes included. Shipping calculated at checkout.

About this item

  • All-in-One 260PCS #4-40 UNC Button‑Head Socket Cap Screws & Hex Nuts Assortment:This single-size inch coarse thread hardware set totals 260 pieces. Button head screw lengths:3/16",1/4",5/16",3/8",1/2",5/8",3/4",7/8",1" (20pcs each), paired with 80pcs #4-40 UNC hex nuts. All screws feature full right-hand thread, length measured from beneath the rounded button head for consistent flush mounting
  • Corrosion‑Resistant 304 Stainless Steel Construction:All screws and 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; not suitable for heavy high-tension load fastening scenarios
  • Smooth Low-Profile Button Head Internal Hex Design:Domed button head creates a wide flat bearing surface to distribute pressure evenly and avoid scratching workpieces, delivering a neat finished surface after installation. Internal hex socket fits standard allen keys for secure torque tightening
  • Full Thread Reliable Locking Structure:Full-length threaded shank maximizes meshing contact area with hex nuts, effectively preventing loosening under minor vibration, perfect for small machinery, electronic equipment and model assembly
  • Separated Plastic Storage Case & Versatile Usage Scenarios:Comes with transparent compartmentalized plastic storage box, each size stored independently for quick lookup and anti-loss. Widely applied to industrial machinery assembly, automotive maintenance, electronic enclosures, RC models, workshop repair and all hobby DIY projects for professionals and amateurs

Overview

  • Size: #4-40 UNC
  • Color: silver
  • Material: Stainless Steel 304
  • Brand: HVAZI
  • Item dimensions L x W x H: 5.2 x 2.75 x 0.9 inches

Low stock: 10 left

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Reviews

  • ⭐⭐⭐⭐⭐

    Michael Turner — Columbus, Ohio

    MROVanta made it easier to find several maintenance supplies in one place. The product information helped me compare the available options, and everything I ordered was useful for routine work around our facility.

  • ⭐⭐⭐⭐⭐

    Rachel Morgan — Phoenix, Arizona

    I was looking for practical supplies for our workshop and found the selection easy to browse. The categories were well organized, and I could quickly locate tools, fasteners, and other items needed for regular maintenance.

  • ⭐⭐⭐⭐⭐

    David Collins — Charlotte, North Carolina

    The products I selected were suitable for the maintenance tasks we had planned. I appreciated being able to review the specifications before ordering, especially when comparing sizes and compatibility for different applications.

  • ⭐⭐⭐⭐⭐

    Amanda Brooks — Denver, Colorado

    I ordered a mix of facility and equipment supplies for our work area. The shopping process was straightforward, and the selection covered several everyday maintenance needs without requiring visits to multiple stores.

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FAQ

How can I confirm that a product is suitable for my application?


Review the product description, dimensions, materials, ratings, connection types, and compatibility information before ordering. Industrial requirements vary, so consult the equipment manufacturer or a qualified professional if you are uncertain.

Do you provide installation or technical advice?


We can help clarify information shown on a product page, but we do not provide engineering, installation, or workplace-safety advice. Products should be selected, installed, and operated by appropriately qualified personnel where required.

Can I change or cancel my order after placing it?


Contact us as soon as possible at ruleindgalein@gmail.com. We will try to accommodate your request, but changes or cancellations cannot be guaranteed once an order has entered processing or shipment.

When will my order be shipped?


Processing and delivery estimates may vary depending on the product, destination, inventory availability, and carrier. Please review the shipping information provided at checkout and our Shipping & Delivery Policy for additional details.

How can I track my order?


When tracking becomes available, it will be sent to the email address used for your order. Tracking activity may take some time to appear after the carrier receives the shipment.

Why did my order arrive in more than one package?


Items from the same order may be fulfilled or shipped separately. As a result, packages can arrive at different times and may have separate tracking numbers. You will not be charged additional shipping solely because an order is divided into multiple shipments.

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


Contact us promptly at ruleindgalein@gmail.com with your order number, a description of the issue, and clear photographs of the item, packaging, shipping label, and any visible damage. Keep all packaging until we provide further instructions.

Can I return an item if it is not suitable?


Eligible items may be returned in accordance with our Return & Refund Policy. Return conditions, exclusions, time limits, and any applicable costs depend on the item and circumstances. Please contact us before sending anything back.

Do you offer bulk quantities or business purchasing?


Availability of larger quantities varies by product. Email us with the product link, desired quantity, required specifications, and delivery location, and we will let you know whether suitable options are available.

How can I contact MROVanta?


Email us at ruleindgalein@gmail.com or call +1 (936) 260-5549. Include your order number when contacting us about an existing purchase so we can assist you more efficiently.

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