Leather Rivets vs. Chicago Screws: Which Fastener to Choose?

Quick answer

Choose rivets for permanent, low-profile joints that need high shear strength. Choose Chicago screws when you need to disassemble, adjust, or swap parts. For most heavy-duty straps, rivets win; for collars, cuffs, and modular gear, Chicago screws are the practical choice.

You are building a leather project and need to join two pieces. The fastener you choose affects strength, appearance, and whether you can take it apart later. Rivets and Chicago screws are the two most common options, and they solve different problems.

This comparison breaks down how each works, when to use which, and the trade-offs you accept either way. We will also cover installation basics and how to avoid common mistakes.

How rivets and Chicago screws work

Rivets are permanent fasteners. You set them with a hammer or press, and the shank deforms to lock the layers together. They sit low and smooth, so they will not catch on clothing or gear. Common types include tubular, split, and solid rivets, each with different holding power.

Chicago screws, also called binding posts or sex bolts, have a male and female half that thread together. They can be tightened by hand or with a screwdriver and removed later. They are not permanent, so they can loosen over time unless you use a thread locker.

• Rivets require a setter and anvil; Chicago screws need only a screwdriver or your fingers.
• Rivets are typically stronger in shear; Chicago screws are stronger in tension when properly tightened.

Strength and durability

For load-bearing joints, rivets are usually the better choice. A properly set rivet fills the hole and creates a solid connection that resists shearing forces. It will not loosen from vibration, making it ideal for straps, harnesses, and heavy bags.

Chicago screws can also be strong, but they rely on threads. Under constant vibration, they may back out. Using a thread-locking compound or a nylon washer can help, but they still require periodic checks. For critical safety applications, rivets are more reliable.

• Use rivets for joints that will experience pulling or twisting forces.
• If you choose Chicago screws for load-bearing joints, check tightness regularly.

Adjustability and disassembly

Chicago screws shine when you need to take something apart. If you are making a collar, cuff, or a bag with interchangeable straps, Chicago screws let you swap hardware or adjust the fit without destroying the leather. They are also great for prototypes.

Rivets are permanent. Removing one usually damages the leather around the hole, so you cannot reuse the same hole. If you might need to change the design later, Chicago screws are the safer bet.

• Chicago screws are ideal for items that need cleaning, repair, or size adjustment.
• Rivets are best for final assemblies where disassembly is not a concern.

Installation and tools

Setting rivets requires a few tools: a hole punch, a rivet setter, and a mallet or press. The process is quick once you practice, but it is not easily reversible. You need to match the rivet length to the total thickness of your leather.

Chicago screws are simpler. Punch a hole, insert the male half through one side and the female half through the other, and tighten. No hammering required. The main challenge is getting the right post length for your leather thickness.

• For rivets, always test on scrap leather to confirm the setter and rivet size.
• For Chicago screws, choose a post length that matches your leather thickness; too long and it will not tighten, too short and it will not hold.

Aesthetics and finish

Rivets come in many finishes and can be color-matched to other hardware. They sit flush or slightly domed, giving a clean, permanent look. Some crafters use them as decorative elements.

Chicago screws have a more mechanical appearance, with a visible slot on one side. They can be an intentional design feature, especially in steampunk or utilitarian styles. They are also available in various platings and colors.

• Choose rivets for a seamless, low-profile look.
• Choose Chicago screws when you want visible, functional hardware.

Trade-offs at a glance

• Permanence: Rivets are permanent; Chicago screws are removable. Choose rivets for final assemblies, Chicago screws for adjustable or repairable items.
• Strength: Rivets resist shear better; Chicago screws resist tension when tight. For heavy loads, use rivets; for moderate loads with adjustability, use Chicago screws.
• Installation: Rivets need a setter and mallet; Chicago screws need only a screwdriver. If you lack tools or space, Chicago screws are easier to install.
• Appearance: Rivets sit flush; Chicago screws have a visible slot. Match the fastener to your design intent.

Product facts

• Craftool® Leather Pyrography Machine: With 24 interchangeable tips in various shapes and a maximum temperature of 1400 degrees, this leather pyrography machine can be used to burn designs from simple to intricate on unfinished veg-tan leather. If you decorate your leather projects with burned designs, this tool gives you the precision to add custom details around your fasteners.
• Fiebing's Aussie Leather Conditioner: Originally formulated for the saddles of Australian horsemen, this natural beeswax conditioner is ideal for helping leather withstand dry, hot, or cold climate conditions. Conditioning your leather before and after installing fasteners keeps it supple and reduces the risk of cracking around holes.
• How To Carve Leather Book: In addition to over 60 patterns for billfolds, belts, and other leather projects, this book demonstrates and explains the rich tradition of Western floral and animal carving. If you plan to carve or stamp around your fasteners, this book provides patterns and techniques to integrate hardware into your design.

Which should you choose?

Best for

• Heavy-duty straps, harnesses, and load-bearing joints that will not be disassembled.
• Permanent assemblies where a low-profile finish is desired.

Not for

• Items that need to be adjusted, repaired, or disassembled frequently.
• Prototypes or projects where you might change hardware later.

Both rivets and Chicago screws have their place in leathercraft. Match the fastener to the job: rivets for strength and permanence, Chicago screws for flexibility and adjustability. Keep both in your shop, and you will always have the right option.