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While the industry uses the term spacers and standoffs often times interchangeably, Lyn-Tron Spacers are used to describe the unthreaded standoff. Spacers come in multiple different lengths and diameters. Most often chosen based on the Screw Size, Spacers are used to create space between circuit boards while still allowing for a screw to pass through and fastening everything in place. While the spacer is unthreaded, the ID is made to create just enough room to allow for specific sized screws to pass through. Because of the tight tolerances on the ID, spacers moving around is kept to a minimum. These products are extremely versatile and are used in nearly every industry. You will often see them being used as washers, tubing, bearings and pivot points.

1/8" Spacers

Hex

Part Number Outside Diameter Profile Material Length Clearance Hole Screw
AA6358-00-0.125 1/8" Hex Aluminum 1/8" 0.062"-0.072" #0 UN
AA6358-00-0.187 1/8" Hex Aluminum 3/16" 0.062"-0.072" #0 UN
AA6358-00-0.250 1/8" Hex Aluminum 1/4" 0.062"-0.072" #0 UN
AA6358-00-0.312 1/8" Hex Aluminum 5/16" 0.062"-0.072" #0 UN
AA6358-00-0.375 1/8" Hex Aluminum 3/8" 0.062"-0.072" #0 UN
AA6358-00-0.437 1/8" Hex Aluminum 7/16" 0.062"-0.072" #0 UN
AA6358-00-0.500 1/8" Hex Aluminum 1/2" 0.062"-0.072" #0 UN
AA6358-02-0.125 1/8" Hex Aluminum 1/8" 0.088"-0.098" #2 UN
AA6358-02-0.187 1/8" Hex Aluminum 3/16" 0.088"-0.098" #2 UN
AA6358-02-0.250 1/8" Hex Aluminum 1/4" 0.088"-0.098" #2 UN

Round

Part Number Outside Diameter Profile Material Length Clearance Hole Screw
AA6348-00-0.125 1/8" Round Aluminum 1/8" 0.062"-0.072" #0 UN
AA6348-00-0.187 1/8" Round Aluminum 3/16" 0.062"-0.072" #0 UN
AA6348-00-0.250 1/8" Round Aluminum 1/4" 0.062"-0.072" #0 UN
AA6348-00-0.312 1/8" Round Aluminum 5/16" 0.062"-0.072" #0 UN
AA6348-00-0.375 1/8" Round Aluminum 3/8" 0.062"-0.072" #0 UN
AA6348-00-0.437 1/8" Round Aluminum 7/16" 0.062"-0.072" #0 UN
AA6348-00-0.500 1/8" Round Aluminum 1/2" 0.062"-0.072" #0 UN
AA6348-02-0.125 1/8" Round Aluminum 1/8" 0.088"-0.098" #2 UN
AA6348-02-0.187 1/8" Round Aluminum 3/16" 0.088"-0.098" #2 UN
AA6348-02-0.250 1/8" Round Aluminum 1/4" 0.088"-0.098" #2 UN

3/16" Spacers

Hex

Part Number Outside Diameter Profile Material Length Clearance Hole Screw
AA6350-02-0.125 3/16" Hex Aluminum 1/8" 0.088"-0.098" #2 UN
AA6350-02-0.187 3/16" Hex Aluminum 3/16" 0.088"-0.098" #2 UN
AA6350-02-0.250 3/16" Hex Aluminum 1/4" 0.088"-0.098" #2 UN
AA6350-02-0.312 3/16" Hex Aluminum 5/16" 0.088"-0.098" #2 UN
AA6350-02-0.375 3/16" Hex Aluminum 3/8" 0.088"-0.098" #2 UN
AA6350-02-0.437 3/16" Hex Aluminum 7/16" 0.088"-0.098" #2 UN
AA6350-02-0.500 3/16" Hex Aluminum 1/2" 0.088"-0.098" #2 UN
AA6350-02-0.562 3/16" Hex Aluminum 9/16" 0.088"-0.098" #2 UN
AA6350-02-0.625 3/16" Hex Aluminum 5/8" 0.088"-0.098" #2 UN
AA6350-02-0.687 3/16" Hex Aluminum 11/16" 0.088"-0.098" #2 UN

Round

Part Number Outside Diameter Profile Material Length Clearance Hole Screw
AA6340-02-0.125 3/16" Round Aluminum 1/8" 0.088"-0.098" #2 UN
AA6340-02-0.187 3/16" Round Aluminum 3/16" 0.088"-0.098" #2 UN
AA6340-02-0.250 3/16" Round Aluminum 1/4" 0.088"-0.098" #2 UN
AA6340-02-0.312 3/16" Round Aluminum 5/16" 0.088"-0.098" #2 UN
AA6340-02-0.375 3/16" Round Aluminum 3/8" 0.088"-0.098" #2 UN
AA6340-02-0.437 3/16" Round Aluminum 7/16" 0.088"-0.098" #2 UN
AA6340-02-0.500 3/16" Round Aluminum 1/2" 0.088"-0.098" #2 UN
AA6340-02-0.562 3/16" Round Aluminum 9/16" 0.088"-0.098" #2 UN
AA6340-02-0.625 3/16" Round Aluminum 5/8" 0.088"-0.098" #2 UN
AA6340-02-0.687 3/16" Round Aluminum 11/16" 0.088"-0.098" #2 UN

1/4" Spacers

Hex

Part Number Outside Diameter Profile Material Length Clearance Hole Screw
AA6351-04-0.125 1/4" Hex Aluminum 1/8" 0.114"-0.124" #4 UN
AA6351-04-0.187 1/4" Hex Aluminum 3/16" 0.114"-0.124" #4 UN
AA6351-04-0.250 1/4" Hex Aluminum 1/4" 0.114"-0.124" #4 UN
AA6351-04-0.312 1/4" Hex Aluminum 5/16" 0.114"-0.124" #4 UN
AA6351-04-0.375 1/4" Hex Aluminum 3/8" 0.114"-0.124" #4 UN
AA6351-04-0.437 1/4" Hex Aluminum 7/16" 0.114"-0.124" #4 UN
AA6351-04-0.500 1/4" Hex Aluminum 1/2" 0.114"-0.124" #4 UN
AA6351-04-0.562 1/4" Hex Aluminum 9/16" 0.114"-0.124" #4 UN
AA6351-04-0.625 1/4" Hex Aluminum 5/8" 0.114"-0.124" #4 UN
AA6351-04-0.687 1/4" Hex Aluminum 11/16" 0.114"-0.124" #4 UN

Round

Part Number Outside Diameter Profile Material Length Clearance Hole Screw
AA6341-04-0.125 1/4" Round Aluminum 1/8" 0.114"-0.124" #4 UN
AA6341-04-0.187 1/4" Round Aluminum 3/16" 0.114"-0.124" #4 UN
AA6341-04-0.250 1/4" Round Aluminum 1/4" 0.114"-0.124" #4 UN
AA6341-04-0.312 1/4" Round Aluminum 5/16" 0.114"-0.124" #4 UN
AA6341-04-0.375 1/4" Round Aluminum 3/8" 0.114"-0.124" #4 UN
AA6341-04-0.437 1/4" Round Aluminum 7/16" 0.114"-0.124" #4 UN
AA6341-04-0.500 1/4" Round Aluminum 1/2" 0.114"-0.124" #4 UN
AA6341-04-0.562 1/4" Round Aluminum 9/16" 0.114"-0.124" #4 UN
AA6341-04-0.625 1/4" Round Aluminum 5/8" 0.114"-0.124" #4 UN
AA6341-04-0.687 1/4" Round Aluminum 11/16" 0.114"-0.124" #4 UN

5/16" Spacers

Hex

Part Number Outside Diameter Profile Material Length Clearance Hole Screw
AA6352-06-0.125 5/16" Hex Aluminum 1/8" 0.140"-0.150" #6 UN
AA6352-06-0.187 5/16" Hex Aluminum 3/16" 0.140"-0.150" #6 UN
AA6352-06-0.250 5/16" Hex Aluminum 1/4" 0.140"-0.150" #6 UN
AA6352-06-0.312 5/16" Hex Aluminum 5/16" 0.140"-0.150" #6 UN
AA6352-06-0.375 5/16" Hex Aluminum 3/8" 0.140"-0.150" #6 UN
AA6352-06-0.437 5/16" Hex Aluminum 7/16" 0.140"-0.150" #6 UN
AA6352-06-0.500 5/16" Hex Aluminum 1/2" 0.140"-0.150" #6 UN
AA6352-06-0.562 5/16" Hex Aluminum 9/16" 0.140"-0.150" #6 UN
AA6352-06-0.625 5/16" Hex Aluminum 5/8" 0.140"-0.150" #6 UN
AA6352-06-0.687 5/16" Hex Aluminum 11/16" 0.140"-0.150" #6 UN

Round

Part Number Outside Diameter Profile Material Length Clearance Hole Screw
AA6342-06-0.125 5/16" Round Aluminum 1/8" 0.140"-0.150" #6 UN
AA6342-06-0.187 5/16" Round Aluminum 3/16" 0.140"-0.150" #6 UN
AA6342-06-0.250 5/16" Round Aluminum 1/4" 0.140"-0.150" #6 UN
AA6342-06-0.312 5/16" Round Aluminum 5/16" 0.140"-0.150" #6 UN
AA6342-06-0.375 5/16" Round Aluminum 3/8" 0.140"-0.150" #6 UN
AA6342-06-0.437 5/16" Round Aluminum 7/16" 0.140"-0.150" #6 UN
AA6342-06-0.500 5/16" Round Aluminum 1/2" 0.140"-0.150" #6 UN
AA6342-06-0.562 5/16" Round Aluminum 9/16" 0.140"-0.150" #6 UN
AA6342-06-0.625 5/16" Round Aluminum 5/8" 0.140"-0.150" #6 UN
AA6342-06-0.687 5/16" Round Aluminum 11/16" 0.140"-0.150" #6 UN

3/8" Spacers

Hex

Part Number Outside Diameter Profile Material Length Clearance Hole Screw
AA6353-06-0.125 3/8" Hex Aluminum 1/8" 0.140"-0.150" #6 UN
AA6353-06-0.187 3/8" Hex Aluminum 3/16" 0.140"-0.150" #6 UN
AA6353-06-0.250 3/8" Hex Aluminum 1/4" 0.140"-0.150" #6 UN
AA6353-06-0.312 3/8" Hex Aluminum 5/16" 0.140"-0.150" #6 UN
AA6353-06-0.375 3/8" Hex Aluminum 3/8" 0.140"-0.150" #6 UN
AA6353-06-0.437 3/8" Hex Aluminum 7/16" 0.140"-0.150" #6 UN
AA6353-06-0.500 3/8" Hex Aluminum 1/2" 0.140"-0.150" #6 UN
AA6353-06-0.562 3/8" Hex Aluminum 9/16" 0.140"-0.150" #6 UN
AA6353-06-0.625 3/8" Hex Aluminum 5/8" 0.140"-0.150" #6 UN
AA6353-06-0.687 3/8" Hex Aluminum 11/16" 0.140"-0.150" #6 UN

Round

Part Number Outside Diameter Profile Material Length Clearance Hole Screw
AA6343-06-0.125 3/8" Round Aluminum 1/8" 0.140"-0.150" #6 UN
AA6343-06-0.187 3/8" Round Aluminum 3/16" 0.140"-0.150" #6 UN
AA6343-06-0.250 3/8" Round Aluminum 1/4" 0.140"-0.150" #6 UN
AA6343-06-0.312 3/8" Round Aluminum 5/16" 0.140"-0.150" #6 UN
AA6343-06-0.375 3/8" Round Aluminum 3/8" 0.140"-0.150" #6 UN
AA6343-06-0.437 3/8" Round Aluminum 7/16" 0.140"-0.150" #6 UN
AA6343-06-0.500 3/8" Round Aluminum 1/2" 0.140"-0.150" #6 UN
AA6343-06-0.562 3/8" Round Aluminum 9/16" 0.140"-0.150" #6 UN
AA6343-06-0.625 3/8" Round Aluminum 5/8" 0.140"-0.150" #6 UN
AA6343-06-0.687 3/8" Round Aluminum 11/16" 0.140"-0.150" #6 UN

1/2" Spacers

Hex

Part Number Outside Diameter Profile Material Length Clearance Hole Screw
AA6355-08-0.125 1/2" Hex Aluminum 1/8" 0.166"-0.176" #8 UN
AA6355-08-0.187 1/2" Hex Aluminum 3/16" 0.166"-0.176" #8 UN
AA6355-08-0.250 1/2" Hex Aluminum 1/4" 0.166"-0.176" #8 UN
AA6355-08-0.312 1/2" Hex Aluminum 5/16" 0.166"-0.176" #8 UN
AA6355-08-0.375 1/2" Hex Aluminum 3/8" 0.166"-0.176" #8 UN
AA6355-08-0.437 1/2" Hex Aluminum 7/16" 0.166"-0.176" #8 UN
AA6355-08-0.500 1/2" Hex Aluminum 1/2" 0.166"-0.176" #8 UN
AA6355-08-0.562 1/2" Hex Aluminum 9/16" 0.166"-0.176" #8 UN
AA6355-08-0.625 1/2" Hex Aluminum 5/8" 0.166"-0.176" #8 UN
AA6355-08-0.687 1/2" Hex Aluminum 11/16" 0.166"-0.176" #8 UN

Round

Part Number Outside Diameter Profile Material Length Clearance Hole Screw
AA6345-08-0.125 1/2" Round Aluminum 1/8" 0.166"-0.176" #8 UN
AA6345-08-0.187 1/2" Round Aluminum 3/16" 0.166"-0.176" #8 UN
AA6345-08-0.250 1/2" Round Aluminum 1/4" 0.166"-0.176" #8 UN
AA6345-08-0.312 1/2" Round Aluminum 5/16" 0.166"-0.176" #8 UN
AA6345-08-0.375 1/2" Round Aluminum 3/8" 0.166"-0.176" #8 UN
AA6345-08-0.437 1/2" Round Aluminum 7/16" 0.166"-0.176" #8 UN
AA6345-08-0.500 1/2" Round Aluminum 1/2" 0.166"-0.176" #8 UN
AA6345-08-0.562 1/2" Round Aluminum 9/16" 0.166"-0.176" #8 UN
AA6345-08-0.625 1/2" Round Aluminum 5/8" 0.166"-0.176" #8 UN
AA6345-08-0.687 1/2" Round Aluminum 11/16" 0.166"-0.176" #8 UN

5/8" Spacers

Hex

Part Number Outside Diameter Profile Material Length Clearance Hole Screw
AA6356-10-0.125 5/8" Hex Aluminum 1/8" 0.192"-0.202" #10 UN
AA6356-10-0.187 5/8" Hex Aluminum 3/16" 0.192"-0.202" #10 UN
AA6356-10-0.250 5/8" Hex Aluminum 1/4" 0.192"-0.202" #10 UN
AA6356-10-0.312 5/8" Hex Aluminum 5/16" 0.192"-0.202" #10 UN
AA6356-10-0.375 5/8" Hex Aluminum 3/8" 0.192"-0.202" #10 UN
AA6356-10-0.437 5/8" Hex Aluminum 7/16" 0.192"-0.202" #10 UN
AA6356-10-0.500 5/8" Hex Aluminum 1/2" 0.192"-0.202" #10 UN
AA6356-10-0.562 5/8" Hex Aluminum 9/16" 0.192"-0.202" #10 UN
AA6356-10-0.625 5/8" Hex Aluminum 5/8" 0.192"-0.202" #10 UN
AA6356-10-0.687 5/8" Hex Aluminum 11/16" 0.192"-0.202" #10 UN

Round

Part Number Outside Diameter Profile Material Length Clearance Hole Screw
AA6346-10-0.125 5/8" Round Aluminum 1/8" 0.192"-0.202" #10 UN
AA6346-10-0.187 5/8" Round Aluminum 3/16" 0.192"-0.202" #10 UN
AA6346-10-0.250 5/8" Round Aluminum 1/4" 0.192"-0.202" #10 UN
AA6346-10-0.312 5/8" Round Aluminum 5/16" 0.192"-0.202" #10 UN
AA6346-10-0.375 5/8" Round Aluminum 3/8" 0.192"-0.202" #10 UN
AA6346-10-0.437 5/8" Round Aluminum 7/16" 0.192"-0.202" #10 UN
AA6346-10-0.500 5/8" Round Aluminum 1/2" 0.192"-0.202" #10 UN
AA6346-10-0.562 5/8" Round Aluminum 9/16" 0.192"-0.202" #10 UN
AA6346-10-0.625 5/8" Round Aluminum 5/8" 0.192"-0.202" #10 UN
AA6346-10-0.687 5/8" Round Aluminum 11/16" 0.192"-0.202" #10 UN

4.5mm Spacers

Round

Part Number Outside Diameter Profile Material Length Clearance Hole Screw
AA5003-25-03.0 4.5mm Round Aluminum 3mm 2.57mm-2.83mm 2.5 mm
AA5003-25-04.0 4.5mm Round Aluminum 4mm 2.57mm-2.83mm 2.5 mm
AA5003-25-05.0 4.5mm Round Aluminum 5mm 2.57mm-2.83mm 2.5 mm
AA5003-25-06.0 4.5mm Round Aluminum 6mm 2.57mm-2.83mm 2.5 mm
AA5003-25-08.0 4.5mm Round Aluminum 8mm 2.57mm-2.83mm 2.5 mm
AA5003-25-10.0 4.5mm Round Aluminum 10mm 2.57mm-2.83mm 2.5 mm
AA5003-25-11.0 4.5mm Round Aluminum 11mm 2.57mm-2.83mm 2.5 mm
AA5003-25-12.0 4.5mm Round Aluminum 12mm 2.57mm-2.83mm 2.5 mm
AA5003-25-13.0 4.5mm Round Aluminum 13mm 2.57mm-2.83mm 2.5 mm
AA5003-25-14.0 4.5mm Round Aluminum 14mm 2.57mm-2.83mm 2.5 mm

6.0mm Spacers

Round

Part Number Outside Diameter Profile Material Length Clearance Hole Screw
AA5005-30-03.0 6.0mm Round Aluminum 3mm 3.07mm-3.33mm 3 mm
AA5005-30-04.0 6.0mm Round Aluminum 4mm 3.07mm-3.33mm 3 mm
AA5005-30-05.0 6.0mm Round Aluminum 5mm 3.07mm-3.33mm 3 mm
AA5005-30-06.0 6.0mm Round Aluminum 6mm 3.07mm-3.33mm 3 mm
AA5005-30-08.0 6.0mm Round Aluminum 8mm 3.07mm-3.33mm 3 mm
AA5005-30-10.0 6.0mm Round Aluminum 10mm 3.07mm-3.33mm 3 mm
AA5005-30-11.0 6.0mm Round Aluminum 11mm 3.07mm-3.33mm 3 mm
AA5005-30-12.0 6.0mm Round Aluminum 12mm 3.07mm-3.33mm 3 mm
AA5005-30-13.0 6.0mm Round Aluminum 13mm 3.07mm-3.33mm 3 mm
AA5005-30-14.0 6.0mm Round Aluminum 14mm 3.07mm-3.33mm 3 mm

8.0mm Spacers

Round

Part Number Outside Diameter Profile Material Length Clearance Hole Screw
AA5007-30-03.0 8.0mm Round Aluminum 3mm 3.07mm-3.33mm 3 mm
AA5007-30-04.0 8.0mm Round Aluminum 4mm 3.07mm-3.33mm 3 mm
AA5007-30-05.0 8.0mm Round Aluminum 5mm 3.07mm-3.33mm 3 mm
AA5007-30-06.0 8.0mm Round Aluminum 6mm 3.07mm-3.33mm 3 mm
AA5007-30-08.0 8.0mm Round Aluminum 8mm 3.07mm-3.33mm 3 mm
AA5007-30-10.0 8.0mm Round Aluminum 10mm 3.07mm-3.33mm 3 mm
AA5007-30-11.0 8.0mm Round Aluminum 11mm 3.07mm-3.33mm 3 mm
AA5007-30-12.0 8.0mm Round Aluminum 12mm 3.07mm-3.33mm 3 mm
AA5007-30-13.0 8.0mm Round Aluminum 13mm 3.07mm-3.33mm 3 mm
AA5007-30-14.0 8.0mm Round Aluminum 14mm 3.07mm-3.33mm 3 mm

10.0mm Spacers

Round

Part Number Outside Diameter Profile Material Length Clearance Hole Screw
AA5008-35-03.0 10.0mm Round Aluminum 3mm 3.57mm-3.83mm 3.5 mm
AA5008-35-04.0 10.0mm Round Aluminum 4mm 3.57mm-3.83mm 3.5 mm
AA5008-35-05.0 10.0mm Round Aluminum 5mm 3.57mm-3.83mm 3.5 mm
AA5008-35-06.0 10.0mm Round Aluminum 6mm 3.57mm-3.83mm 3.5 mm
AA5008-35-08.0 10.0mm Round Aluminum 8mm 3.57mm-3.83mm 3.5 mm
AA5008-35-10.0 10.0mm Round Aluminum 10mm 3.57mm-3.83mm 3.5 mm
AA5008-35-11.0 10.0mm Round Aluminum 11mm 3.57mm-3.83mm 3.5 mm
AA5008-35-12.0 10.0mm Round Aluminum 12mm 3.57mm-3.83mm 3.5 mm
AA5008-35-13.0 10.0mm Round Aluminum 13mm 3.57mm-3.83mm 3.5 mm
AA5008-35-14.0 10.0mm Round Aluminum 14mm 3.57mm-3.83mm 3.5 mm

13.0mm Spacers

Round

Part Number Outside Diameter Profile Material Length Clearance Hole Screw
AA5010-40-03.0 13.0mm Round Aluminum 3mm 4.07mm-4.33mm 4 mm
AA5010-40-04.0 13.0mm Round Aluminum 4mm 4.07mm-4.33mm 4 mm
AA5010-40-05.0 13.0mm Round Aluminum 5mm 4.07mm-4.33mm 4 mm
AA5010-40-06.0 13.0mm Round Aluminum 6mm 4.07mm-4.33mm 4 mm
AA5010-40-08.0 13.0mm Round Aluminum 8mm 4.07mm-4.33mm 4 mm
AA5010-40-10.0 13.0mm Round Aluminum 10mm 4.07mm-4.33mm 4 mm
AA5010-40-11.0 13.0mm Round Aluminum 11mm 4.07mm-4.33mm 4 mm
AA5010-40-12.0 13.0mm Round Aluminum 12mm 4.07mm-4.33mm 4 mm
AA5010-40-13.0 13.0mm Round Aluminum 13mm 4.07mm-4.33mm 4 mm
AA5010-40-14.0 13.0mm Round Aluminum 14mm 4.07mm-4.33mm 4 mm