Customer Service
M-F 8:00am - 4:30pm CST

3 1/2" Flat Concrete Marker (Aluminum)

1 - 24
25 - 99
100 - 249
250 or more
All prices USD
Availability: In Stock
NO CHARGE for stamping 11 or more markers. There is a $35 setup charge for stamping fewer markers.
Add To Field Bag


Please enter the text you would like printed in the text boxes provided below:
Outside Row
Total of 46 characters and spaces.
Centered at 12 o'clock:
Centered at 6 o'clock:
Inside Row
Total of 36 characters and spaces.
Centered at 12 o'clock:
Centered at 6 o'clock:
Please select the center mark for this cap:
Surveying Center Marks
Utility Center Marks

Product Details

Berntsen 3.5" Aluminum Concrete Survey Marker

Berntsen "C" style (US Army Corps of Engineers Type 1 Disc) has the classic 3" (76mm) long split-style tapered stem. It is available in 2½" (89mm) diameter and one piece orbital formed from solid 6000 series aluminum bar.

Our aluminum material is versatile and resistant to most environment conditions, however, if the survey markers are intended to be used in high traffic or caustic environments, such as roadways or salty conditions, we highly recommend using bronze survey markers to improve the lifetime of the markers.

The CAPMAG ceramic magnet can be used with concrete markers to assure easy detection of the mark by a magnetic locator. Dimensions are 1/2" (13 mm) in diameter & 1/4" (6 mm) long. The magnet can be located up to 6 to 12 inches deep with a magnetic locator, depending on soil conditions.


C35F Concrete Marker Installation Instructions


Spec Drawing


Countersink Drill Bit Video for Berntsen Concrete Markers


Product Reviews

Berntsen International, Inc.
  • 1-800-518-0934
  • All other countries:
  • +1-608-249-8549
  • PO Box 8670
  • Madison, WI 53708-8670
We accept VISA, Master Card, American Express and Discover Card.