---
product_id: 388909056
title: "MTB Fence Post Support Bolt Down Metal Black Powder Coated 4 Inch x 4 Inch (Inner Diameter 3.5 x3.5 Inches), Pack of 4"
price: "€ 112.05"
currency: EUR
in_stock: true
url: https://www.desertcart.sk/products/388909056-mtb-fence-post-support-bolt-down-metal-black-powder-coated
store_origin: SK
region: Slovakia
---

# MTB Fence Post Support Bolt Down Metal Black Powder Coated 4 Inch x 4 Inch (Inner Diameter 3.5 x3.5 Inches), Pack of 4

**Price:** € 112.05
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** MTB Fence Post Support Bolt Down Metal Black Powder Coated 4 Inch x 4 Inch (Inner Diameter 3.5 x3.5 Inches), Pack of 4
- **How much does it cost?** € 112.05 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/388909056-mtb-fence-post-support-bolt-down-metal-black-powder-coated)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
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## Description

MTB Fence Post Support Bolt Down Metal Black Powder Coated 4 Inch x 4 Inch (Inner Diameter 3.5 x3.5 Inches), Pack of 4

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | MTB Supply Inc |
| Part Number | GSPB3644 |
| Item Weight | 10.93 pounds |
| Product Dimensions | 4 x 4 x 1 inches |
| Item model number | GSPB3644 |
| Is Discontinued By Manufacturer | No |
| Color | Black |
| Material | steel |
| Item Package Quantity | 4 |
| Number Of Pieces | 4 |
| Batteries Included? | No |
| Batteries Required? | No |

## Images

![MTB Fence Post Support Bolt Down Metal Black Powder Coated 4 Inch x 4 Inch (Inner Diameter 3.5 x3.5 Inches), Pack of 4 - Image 1](https://m.media-amazon.com/images/I/51TuSWtRENS.jpg)

## Questions & Answers

**Q: I have some old barn beams that measure 4" x 3 3/4". Not "standard" for a 4x4 in todays lumber. What are the actual inside dimensions of the clamp?**
A: Mine had an expansion bolt to adjust to the post size.

**Q: Is the bottom inside of the base made of steel as well (to allow separation between post and concrete), or just hollow?  Can't tell from the photos.**
A: Its a whole plate on the bottom. So post would not come in contact with whatever the anchor is being held to

**Q: Can this fit lumber 4x4 pressure treated timber from home depot without shaven**
A: yes it will - you may need to trim a little, but it will fit.

**Q: Instead of drill and put anchor into the concrete, can I put the construction glue for base post patio 8 feet? is it strong stick to the post?**
A: I used anchors due to wind. Not sure glue is strong enough

## Frequently Bought Together

- Deck Post Base Post Mounting Base, Wood Post Support Black Metal Post Bracket 4x4 inch, Fit for 3.5x3.5 inch Standard Wood Post (Inner Diameter 3.5 x3.5 Inches),Pack of 4
- Fence Post Anchor Ground Spike Metal Black Powder Coated 24 x 4 x 4 Inches Outer Diameter (Inner Diameter 3.5 x3.5 Inches), Pack of 4
- YOFIT Shade Sail Hardware Kit 6 inch for Triangle Rectangle Sun Shade Sail Installation, 304 Grade Stainless for Garden Outdoors, 80 Pcs

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**Shop now:** [https://www.desertcart.sk/products/388909056-mtb-fence-post-support-bolt-down-metal-black-powder-coated](https://www.desertcart.sk/products/388909056-mtb-fence-post-support-bolt-down-metal-black-powder-coated)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-08-01*