Keystone® Interlocking Pins For Retaining Walls - Michigan

Keystone® interlocking pin system system maximizes design options, improves the installation process and increases the structural integrity of retaining walls. Allowing for a near vertical or setback installation, Keystone interlocking pins take the question out of proper block placement and improve interaction with geosynthetic textiles. Weatherproof pins also help the wall to withstand weather challenges.

These pins are specifically designed for Keystone Compac retaining walls. Each wall block requires 2 pins, each box comes with 100 pins.

1. Do you offer volume or contractor discounts?

Absolutely! Contractors, register here for your unique discount code and join our network for free leads and added benefits —call 1(800) 688-1796 to explore the perks. For high-volume orders (over 40 tons), request a custom quote with volume savings included.

2. Can I get a sample?

Yes! Email Support@stonesdirect.com with your desired product and shipping address. Samples are free, though shipping fees apply—we’ll credit that fee back if your order tops $2,500. Some samples can be ordered online via the blue hyperlink below the “Add to Cart” button on product pages. Note: Samples are for color reference only.

3. Where do you ship, and how long does it take?

We ship across the United States and Canada. Delivery typically takes 1-8 weeks, depending on the season and other factors. Special orders may require extra time.

4. How much is shipping?

Our automated system compares hundreds of carriers to calculate shipping, which we subsidize for you. Answer a few quick questions in your cart to see the exact cost.

5. How do I figure out how much I need?

It’s simple! On the product page, input your face feet, square feet, or linear feet to calculate tonnage. For “per piece” items, use the average piece length to estimate how many you’ll need based on your measurements.

6. Can I pick up my stones?

Unless you’ve got a commercial vessel, quarry pickups aren’t an option—delivery is the way to go.

7. Do you provide installers?

We’ve got a network of contractors! Contact us to check if there’s one near you.

Shipping costs appear in your cart once you’ve answered the shipping prompts and entered your zip code—rates are subsidized for your savings. Please note these are spot quotes and are subject to change slightly on actual shipping date - we do not control these rates from 3PL carriers. We do, however, work with over 100 carriers to get the best price.

Pallets exceeding 1 ton (2000 lbs)? You’ll need a forklift or skid steer to offload from the truck as its too heavy for lift gates (check weights below the quantity box on product pages). No equipment? Explore renting a skid steer by the hour from your local hardware store. Still have concerns with offloading options? Call us and maybe we can find other solutions.

For orders under 10 tons and pallets less than or equal to 1 ton, we ship via LTL, and the stones are offloaded for you with a lift gate/pallet jack.

Returns? Due to their nature, stones are non-returnable and non-refundable unless damaged in transit.

Shipping costs appear in your cart once you’ve answered the shipping prompts and entered your zip code—rates are subsidized for your savings. Please note these are spot quotes and are subject to change slightly on actual shipping date - we do not control these rates from 3PL carriers. We do, however, work with over 100 carriers to get the best price.

Pallets exceeding 1 ton (2000 lbs)? You’ll need a forklift or skid steer to offload from the truck as its too heavy for lift gates (check weights below the quantity box on product pages). No equipment? Explore renting a skid steer by the hour from your local hardware store. Still have concerns with offloading options? Call us and maybe we can find other solutions.

For orders under 10 tons and pallets less than or equal to 1 ton, we ship via LTL, and the stones are offloaded for you with a lift gate/pallet jack.

Returns? Due to their nature, stones are non-returnable and non-refundable unless damaged in transit.