XX Fiberglass Epoxy Laminate Rod Material Fiberglass Epoxy Laminate Color Brown Clarity Opaque Overall Diameter 5/8 in Overall Length 4 ft Tensile Strength 15 000 psi Maximum Temperature 250 Degrees F Minimum Temperature 0 Degrees F Density 0.049 lb/cu in Diameter Tolerance +0.017/-0.015 in Standards UL 94-HB Impact Strength 0.6 ft-lb/in Hardness Rating Extra Hard Friction Coefficient Not Applicable Corrosion and Chemical Resistance Fair Friction Rating Not Applicable Grade XX