Anchors & Components

Rock & Earth Auger Anchors

Rock & Earth Auger Anchors deliver strong, versatile ground anchoring for manufactured and mobile home tie-down systems, as well as general applications like sheds, carports, and storm shelters, with helix designs optimized for penetrating and holding in rock, hard soils, clay, and mixed earth conditions.

  • Types Rock & earth
  • Soil classes 1 to 4b
  • Heights 30″ to 60″
  • Finishes Painted & galvanized

Anchor selection

Anchor selection chart.

Select the anchor by soil class and torque-probe test value. Letters in the chart match the anchors shown below.

Rock and earth auger anchors, models A through K
Soil Class & Test Value Product # Height Width Helix & Width Type
1 - N/A (solid rock) (A) OT30CDP 30″3/4″1 - 6″Painted
2 - 550 inch lbs. or more (B) OT3044AP 30″5/8″2 - 4″Painted
2 - 550 inch lbs. or more (C) OT3044BP 30″3/4″2 - 4″Painted
2 - 550 inch lbs. or more (D) OT3044BPC 30″3/4″2 - 4″Painted, Cap Welded
3 - 350 to 550 inch lbs. (E) OT3646BP 36″3/4″1 - 4″ & 1 - 6″Painted
3 - 350 to 550 inch lbs. (F) OT3646BG 36″3/4″1 - 4″ & 1 - 6″Galvanized
3 - 350 to 550 inch lbs. (G) OT3646BPC 36″3/4″1 - 4″ & 1 - 6″Painted, Cap Welded
3 - 350 to 550 inch lbs. (H) OT4244BP 42″3/4″2 - 4″Painted
4a - 276 to 350 inch lbs. (E) OT3646BP 36″3/4″1 - 6″Painted
4a - 276 to 350 inch lbs. (F) OT3646BG 36″3/4″1 - 6″Galvanized
4a - 276 to 350 inch lbs. (H) OT4244BP 42″3/4″2 - 4″Painted
4a - 276 to 350 inch lbs. (I) OT486A 48″5/8″1 - 6″Galvanized
4a - 276 to 350 inch lbs. (J) OT486B 48″3/4″1 - 6″Galvanized
4b - 175 to 275 inch lbs. (K) OT607B 60″3/4″1 - 7″Galvanized

Soil reference

Soil classification chart.

Use a torque probe to determine the soil class, then match it to the anchor in the chart above.

Soil classification chart

Installation

Installation Instructions.

Use the written installation instructions and applicable installation requirements for anchor component setup.

PDF · Written Instructions

Anchor Components Installation Instructions

Step-by-step installation guide for Oliver anchor components, including rock and earth auger anchors.

Download PDF

Need help selecting an anchor?

Call Oliver Technologies for help matching the right auger anchor to your soil class and installation.

1-800-284-7437 Mon–Fri, 8 AM to 5 PM CST