Chicago screws / binding bolts

Chicago screws are an interesting form of connector intended for holding two pieces of material together. They are typically used in leatherwork and in sheath making.

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Chicago screws / binding bolts

Chicago screws are an interesting form of connector intended for holding two pieces of material together. They are typically used in leatherwork and in sheath making.

Never heard of them before? They do have a pretty wide range of names, including sex bolts, barrel bolts, binding barrels, post and screws, and connector bolts.

Essentially, they are a type of nut which sits inside the piece being fastened, and sits flush either side of the workpiece. They are often used for belts, bags, knife sheaths, etc.

They come in a range of materials, shapes, and sizes, but the most important thing to consider is generally the shaft width and length - to join two 2MM thick pieces of material you'll want a 4MM shaft length, or possibly slightly larger.

These bolts should always be used in combination with a glue or some type of thread locker to avoid them backing out, which over time they will do. They are closer to decorative than functional but if the threads are sealed they are much more functional.

We sell them in packets of five - this means 5 'nuts' and 5 'screws', enough to make five complete units.

 

Our current stock includes:

Reference
Screw head size (a)
Plain head size (b)
Shaft diameter (c)
Shaft length (d)
Assembled length (e)
Material
CS-001
9.6MM
9.4MM
4.8MM
5MM
8MM
Nickel plated Steel
CS-002
8.2MM
10MM
4.0MM
7MM
10MM
Brass alloy with gunmetal colour, nickel free.
CS-003
7-8MM
9MM
4MM
5MM
7.8MM
Brass alloy with gunmetal colour, nickel free.

These measurements are done manually, and its likely that there are pieces with slight differences so please allow .5mm or so leeway.

Frequently asked questions and delivery information


How do we grade stones?

There is no overall universal grading system for the majority of our products. As such, the grades we use are internal only. They simply refer to higher and lower qualities, but they may be entirely different grades to other websites. C grade pieces are of lower quality than B grade, which is lower than A grade.

 

How does our ordering and delivery process work?

You place an order via the website. When it’s been picked and packed, your order will be marked as completed and dropped off at our local post office. We have an account with the post office called a “Drop and Go” account, which allows the post office staff to process our parcels when they have free time, rather than me queuing up and delaying everyone else.

I get tracking information etc online when this has been completed. I typically do not send tracking information to customers unless they request it – but if you’ve requested tracked postage, it has been sent tracked! If you have any worries or concerns about your parcel being delayed please feel free to get in touch and I’ll send the tracking info over! We also get delivery confirmations for parcels over 25MM thick by default.

 

How do international orders work?

After Brexit, with the UK leaving the European Union, certain things have changed with regards to international orders. European Union customers will now likely be liable to pay the same amount of import VAT as any other international customers. You will be responsible for any customs and import fees.

 

I’d like to return my order for a refund.

No problem at all – just get in touch and we’ll arrange it. You can read our full returns policy here.

 

What payment methods do you accept?

I can accept Paypal, Stripe, cheque, and direct bank transfers. Paypal and Stripe will both allow you to pay with credit and debit cards.

 

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