15 Series T-Slotted Aluminum Extrusion with Twelve Open T-Slots Compatible with all 15 Series Fasteners and Accessories Center cavities can be pressurized up to 150 psi The twelve open T-slots, strength, and ability to pressurize this profile make it a great choice for automation applications, machine frames, and workstations Made out of 6063-T6 aluminum with a clear anodized finish 3060 is a 3.00” x 6.00” fractional 15 series rectangular T-slot profile with twelve open T-slots, two on each 3.00” face and four on each 6.00” face. The profile has align-a-grooves to assist in alignment when connecting profiles. The 3060 profile is the largest fractional profile offered by 80/20, is compatible with 15 series fasteners, and has center cavities that can be pressurized up to 150 psi. The twelve open T-slots, strength, and ability to pressurize this profile make it a great choice for automation applications, machine frames and workstations.