Chicago Nut & Bolt, Inc. Specializes in the Manufacturing of All Types of Industrial and Intricate Custom Fasteners. Chicago Nut & Bolt is your number one source for all your custom fastener needs. We have been in the custom fastener business for almost 20 years, and are the leader in high quality fastener products. Including custom fasteners, Chicago Nut & Bolt also offers standard fasteners for all application types. We sell single quantities, up to hundreds of thousands of pieces at a time. Chicago Nut & Bolt can also warehouse your order for a period of time so it is safe and secure until you need it on the job site.