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A set of expansion jack nuts and petal screws in various sizes packaged in clear plastic containers.
A collection of assortment kits containing various sizes of jack nuts and petal screws in plastic packaging.
A set of silver hollow door anchors and expansion jack nuts with petal screws shown being used to install a door.
A pile of silver expansion jack nuts and petal screws for use in various applications.
Six steps showing how to install petal nut screws into a casing using a special tool
A set of expansion jack nuts and petal screws used for machinery and equipment installation.
Assortment kit of various metric size jack nuts and petal screws organized in a plastic tray
Expansion Jack Nuts and Petal Screws Set
Assortment Kit B containing various M4-20 to M8-30 jack nuts and petal screws.
Assortment kit of various metric size jack nuts and petal screws in a clear plastic tray
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Expansion Jack Nuts and Petal Screws Set

Regular price €25,99 Sale price €21,99 – €38,99

Why customers love it

Secure your projects with precision fastening power

Upgrade your crafting and fabrication needs with our set of precision-machined jack nuts and petal screws.

  • Engineered for strong, reliable penetration into various materials.
  • Constructed from durable carbon steel for long-lasting performance.
  • Perfect for creating secure, expanded joints in tin, cardboard, and more.
  • Ideal for detailed DIY projects and prototyping needs.
  • Offers a comprehensive set of fasteners for diverse mechanical tasks.
A set of expansion jack nuts and petal screws in various sizes packaged in clear plastic containers.

Precision Fastening for Reliable Results

Precision Machining

Screws and nuts are precision-machined for a secure, tight fit.

Durable Construction

Built with carbon steel to ensure longevity and reliability.

Versatile Application

Perfect for detailed crafts, prototyping, and fabrication tasks.

Secure Joints

Creates expanded holes for strong, fixed connections in materials like tin.

Product Details

Fastener Specifications

Key attributes of our precision hardware

Material
Carbon Steel
Construction Type
Precision-Machined
Application Focus
Crafting, Fabrication, Prototyping

Why Choose Our Fasteners?

Precision vs. Standard Hardware

The difference in performance for your project

Feature
Precision Jack Nuts & Screws
Typical Cheap Fasteners
Durability
High (Carbon Steel)
Low (Often softer metals)
Fit & Finish
Precision-Machined
Standard/Rough Cut
Reliability
Strong, fixed joints
Prone to loosening
Ideal Use
Detailed projects & prototyping
General assembly only

Our worry-free shopping promise

If your order arrives damaged, defective, or not as described, contact us within 14 days and we will make it right with a replacement or refund.

Frequently Asked Questions

Get answers to common usage queries

Are these screws suitable for thin materials like cardboard?

Yes, the precision design allows these fasteners to create secure and expanded holes in materials such as tin and cardboard.

How strong are these fasteners for DIY projects?

They offer strong and reliable assembly, making them excellent for detailed crafting and fabrication where secure joints are necessary.

What is the main advantage over regular hardware?

The primary advantage lies in the precision machining of the carbon steel, which ensures superior strength and reliable performance over typical standard hardware.

Shipping & returns

Shipping

  • Delivers to Germany (based on your selected country/region).
  • Estimated delivery: 3–15 business days after dispatch.
  • Shipping cost: Free.

Returns

You can request a return within 14 days after delivery. Standard returns have a €4.00 EUR (approximately $4.66 USD) flat-rate return shipping fee, deducted from your refund. Return shipping is free for items that arrived damaged, defective, or incorrect. Items should be unused and in original packaging where possible. Contact us before sending anything back.