RUBYCA 12MM Tree Spike Screwback Studs - 500 Sets for Leather DIY

Our review of the RUBYCA 12MM tree spike screwback studs looks at whether this large kit suits hobby leatherworkers and small makers. Bottom line: the package delivers a high-volume, bronze-colored supply of sturdy metal tree spikes that are convenient for repeated installations and decorative projects. The 500 sets and included zip-bag make it easy to store and use, and the screwback design simplifies attachment to leather garments, belts and bags while still allowing removal or replacement if needed.

Key Features

• Package size: 500 sets provide a long-lasting inventory for multiple projects or small batch production without frequent restocking.
• Top quality material: Zinc alloy metal construction gives a solid feel and decent corrosion resistance for accessories that see regular wear.
• Screwback design: The included screws and screwback heads make assembly straightforward and permit secure fastening to leather and similar materials.
• Size and shape: 12mm height tree spike with an 8mm base diameter offers a noticeable decorative profile suited to jackets, belts and shoes.
• Storage and organization: The genuine RUBYCA zip-bag included with the kit keeps all pieces together and reduces the risk of lost studs between projects.
• Screw compatibility: Phillips and slotted screw types are provided to match common drivers for quicker installation.

Who It's For

This kit is aimed at leather crafters, costume makers, and DIY hobbyists who need a reliable bulk supply of decorative hardware. It is particularly useful for those working on multiple items like jackets, belts, bags or shoes where consistent appearance and a screwback fastening are desired.

Those who should look elsewhere include buyers needing very small quantities, or projects that require unusually long screw shanks or specialized threading; a few users reported mixed experiences with threading and screw length, so heavy industrial or precision fit applications may require a trial before committing.

Pros & Cons

Pros

• High quantity gives excellent value for makers doing many pieces or frequent repairs.
• Bronze finish and solid zinc alloy feel provide good color accuracy and perceived durability.
• Included zip-bag and screwback system simplify storage and repeated installations.
• Phillips and slotted screw heads increase compatibility with common tools.

Cons

• Threading and screw length received mixed feedback, so some pieces may not fit thicker materials without modification.
• Size is fixed at 12mm height and 8mm base diameter, which may be too large for fine, detailed trim work.

Specifications

Package Includes	500 sets of tree spike screwback studs with screws
Material	Top quality zinc alloy metal
Shape	Tree spike
Color	Bronze
Size (height)	12mm = 15/32 in
Base diameter	8mm = 5/16 in
Screw type	Phillips / slotted

Our Verdict

For leathercrafters and DIY decorators who need a cost-effective bulk supply of decorative hardware, this 500-set kit is a practical choice because of its sturdy zinc alloy spikes, bronze finish and included storage bag. It represents good value for multi-item projects, though buyers should check screw length and threading for very thick materials before use.

Frequently Asked Questions

Are the spikes suitable for jackets and belts?
Yes, the 12mm height and 8mm base diameter are designed for leather accessories like jackets, belts and bags.

Do the screws accept common screwdrivers?
Yes, the kit includes Phillips and slotted screw types to match standard drivers.

Will the screws hold in very thick leather?
Possibly, but threading and screw length received mixed feedback, so thick or layered leather may require longer screws or pre-testing.