8mm Hex Female Standoff

The 8mm Hex Female Standoff has standard thread sizes and materials:
 
Thread Code Material Code
M3x0.5 3005 Aluminum A
M3.5x0.6 3506 Brass B
M4x0.7 4007 Stainless Steel SS
M5x0.8 5008 Steel S
    Nylon N