We have 8.000” wide serrated fin extruded aluminum heatsinks for you to complete your electric project. HeatsinkUSA is the premium provider of heatsinks to businesses, medical and military institutions, as well as individual DIY’ers tackling their own electrical projects. We are able to customize the length of any profile to your unique specifications. You can indicate your required size right from our website, and we will cut it down to the exact length, no matter your order volume. We also offer no order minimums and fast shipping, so you have the heatsink equipment you need as fast as possible. HeatsinkUSA has one of the largest selections of aluminum heatsinks, all extruded and shipped in the USA.