15 Series 1.5″ x 1.5″ SMOOTH Heavy T-Slotted Aluminum Extrusion.

SPECIFICATIONS:
Weight = 1.438 lbs/ft (2.140 kg/m)
Estimated Area = 1.198 in2 (7.729 cm2)
Moment of Inertia = Ix=0.266 in4 (11.072 cm4)
Iy=0.266 in4 (11.072 cm4)

These extrusions are 100% compatible with the following manufacturers:

• 80/20 #1515-S
• T-SLOTS #650005
• FRAME-WORLD #EX-1
• McMaster #47065T103

Extrusions have a clear anodized finish, and may have one end anodized as well.
They are in the “15 Series”, and have a slot opening of approx. 5/16″.