OZ-POST GB-700 26" Steel Post Anchor for 1-5/8" Diameter Round Posts - Individual or Cases of 6

Product Description

OZ-Post® GB-700 Steel Post Anchor — Fits 1-5/8″ (1.660″ O.D.) Round Posts — 27″ Anchor

• No-Dig Post Foundation — Drive-in ground anchor for 1-5/8″ O.D. chain link line posts; set posts without digging or concrete
• Fast, Clean Installs — Drive to grade, drop in pipe, and set the compression cap to lock the post
• Hot-Dip Galvanized Steel — Heavy steel, zinc-coated for long outdoor service and ACQ compatibility
• Proven Performance — Manufacturer cites 120 mph wind-load testing (lab conditions; follow local code)
• Chain Link Ready — Sized for common residential line posts; great for temporary panels and small sign posts, too
• Compression Collar Locks in Place to Keep Posts Secure

GB-700 OZ-Post Steel Post Anchors are a revolutionary way to anchor your 1-1/2" chain link fence posts in the ground without concrete. The unique design of the OZ-Post anchors has many advantages, not the least of which is the fact that they can be driven into the ground in minutes using a rented jackhammer vs. the hours that it takes to dig post holes and wait for your concrete to set. And, OZ-Post anchors have been tested to perform as well as anchoring your posts in 6-8 inches of concrete, so you get all of the benefits and none of the drawbacks of concrete. These post anchors also perform very well in cold climates where, over time, frost can heave concrete plugs out of the ground. 

The GB-700 anchors are designed for standard 1-1/2" chain link fence pipe, which has an actual outside diameter of 1-5/8". The compression collar slides down over the post and can be pounded into place with a sledge hammer or the cap driving tool (CDT-07). The collar keeps the posts in place and ensures that they cannot be pulled out of the anchor.

Every OZ-Post anchor is hot-dip galvanized for rust protection. They can be driven completely into the ground, so that the top of the anchor is flush with the surface of the ground, but you can also leave a small part of the anchor protruding from the surface to make it easier to install the compression collar. 

OZ-Posts steel anchors are great for temporary projects too. They can be pulled out of the ground using the OZ-Puller and reused for different projects.

There are 2 ways to install GB-700 Post Anchors:

1) Insert an OZ-Post OH-02 Jackhammer Bit into the OZ-Post and pound the anchor into the ground by hitting the OH-02 with a sledgehammer (this is only recommended for a small number of OZ-Posts,ideally less than 5)

2) Rent a jackhammer and purchase an OZ-Post OH-02 Jackhammer Bit to drive your posts into the ground. This usually takes one person about 4 minutes per post, and is the most efficient way to install all OZ-Post post anchors.

Why Choose This

• Concrete-free workflow — Set posts and stretch fabric the same day
• Cleaner jobsites — Minimal disturbance; often workable through compacted soils and even asphalt
• Durable build — Hot-dip galvanizing and an elevated post base help mitigate moisture-related issues

Specifications

Installation

Lay out post centers and call 811 to locate utilities. Keep the anchor plumb as you drive the GB-700 to grade (jackhammer + OH-02 driver recommended for speed and consistency). Insert the 1-5/8″ pipe fully, verify plumb, then set the compression cap until the post is clamped snugly. In rocky soils or over bedrock, pre-drilling may be required; through asphalt is often feasible. Always follow local code for fence height, spacing, and wind exposure.

Resources: Manufacturer’s Warranty

Buying Guide

• Choosing size: For 1-7/8″ line posts, see HB-700 (1-7/8″). For 2-3/8″ terminals/corners, consider IS-600 (24″) in hard soils or ISW-850 (34″) for deeper embedment.
• Cap setting: A cap-driving tool speeds consistent compression-cap installs across long runs; hand hammering is fine for small jobs.
• Soils & surfaces: Works in many compacted soils and can often be driven through asphalt; solid rock may need pre-drill or alternate footing.

Frequently Asked Questions

Do I need concrete?

No. GB-700 is a drive-in system designed to eliminate digging and concrete in qualifying applications.

Will it fit my chain link line posts?

Yes. It’s sized for standard 1-5/8″ O.D. round pipe used for many line posts.

Is the compression cap included?

Yes. The GB-700 includes the cap used to clamp the post at grade.

Which driver should I use?

Use the OH-02 driver with a jackhammer for long runs. A sledge works for a few posts.

Can I use the MDK-13 manual driver kit?

No. GB-700 is not compatible with the MDK-13 due to sleeve size; no spacer is required.

Comparison

Not sure which anchor best matches your post size, soil, and fence height? Contact us and we’ll help you plan a clean, code-conscious install from posts to hardware.