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mxuteuk 521PCS M4 Screws Assortment Kit,M4×6/8/12/16/20/30mm 6 Size Hex Socket Head Cap Bolts, Nuts & Washers Set,12.9 Grade Alloy Steel Black Zinc M4 Bolts for Mechanical, Repair & DIY - size: 521PCS M4

mxuteuk 521PCS M4 Screws Assortment Kit,M4×6/8/12/16/20/30mm 6 Size Hex Socket Head Cap Bolts, Nuts & Washers Set,12.9 Grade Alloy Steel Black Zinc M4 Bolts for Mechanical, Repair & DIY - size: 521PCS M4

$14.92 USD
$14.92 USD
Sale Sold out
Taxes included. Shipping calculated at checkout.

About this item

  • Our M4 screws kit includes a full range of standard specifications:M4×6/8/12/16/20/30mm hex socket cap screws, paired with matching M4 bolts, nuts, and flat washers. Strictly manufactured according to metric standards, with dimensional accuracy controlled within 0.01mm, ensuring smooth installation and reliable connection for various professional and daily uses.
  • All M4 screws are forged from high-strength 12.9 grade alloy steel, featuring outstanding hardness, tensile strength, and load-bearing performance. They effectively resist abrasion, deformation, and external impact, making this M4 screws assortment kit stable and durable even in long-term use and complex working environments.
  • Wide Application:This all-in-one M4 screws assortment kit is a must-have for DIY enthusiasts, makers and technicians. Widely applied in 3D printer assembly and maintenance, electronic equipment repair, RC model building, furniture replacement, handicraft DIY and CNC machinery installation, delivering stable fastening for daily and handmade projects.
  • The surface adopts blackening treatment can isolate air and water vapor, which can effectively prevent rust; Reduce the friction and wear of threads and contact surfaces during DIY and 3D printer assembly. Excellent anti-rust and anti-corrosion performance greatly extends service life, suitable for indoor use and light outdoor applications.
  • This all-in-one M4 screws kits comes with a sturdy, transparent, compartmentalized storage box, with clear size labels on each slot. You can quickly identify and take the M4 bolts you need, keeping your workbench neat and improving efficiency for 3D printing, DIY projects, and daily repairs.

Overview

  • Size: 521PCS M4
  • Color: Hex Socket Head
  • Material: Carbon Steel
  • Brand: mxuteuk
  • Item dimensions L x W x H: 0.43 x 0.43 x 0.43 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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