To order extra hardware, please reach out to us directly via our contact form: https://www.newtechwood.com/contact/. Please be sure to specify which pieces you need and how many, referring to the parts guide on page 4 of the installation guide (see https://www.newtechwood.com/pdf/36_inches_Hybrid_Composite_Railing_Installation_Guide.pdf).. Please keep in mind that we have limited stock of these parts, and that we may charge for shipping.