All these plastic spacers have a 3/16" ID (inner diameter) and a 3/8" OD (outer diameter) and fit around both #6 and #8 screws.
Available in 1/8" through 1-1/2" lengths.
Choose length from drop-down menu.
All plastic posts are black in color.
Reference numbers 254-5000-01, 254-5000-02, 254-5000-04, 254-5000-05, 254-5000-06, 264-5000-07, 254-5000-08, 254-5000-09, 254-5000-11, 254-5000-12, 254-5000-14, 254-5000-18 & 254-5000-19.