Product Description
OZCO® OWT™ 2″ Heavy-Duty Timber Bolt Washer — Black, ACQ-Approved (4-Pack or 150-Pack)
- Reinforces Timber Joints — 2″ washer spreads load under nuts/caps to strengthen through-bolt connections on pergolas, pavilions, decks & rails
- Thick, Rugged Plate — 6-gauge steel adds stiffness and a bold, finished look around OWT Timber Bolts
- Outdoor-Ready — Pre-galvanized steel with black exterior powder coat; approved for ACQ-treated lumber
- OWT System Match — Designed to pair with OWT Timber Bolts, Hex Cap Nuts, and Hammered Dome Cap Nuts for a cohesive hardware package
- Two Pack Sizes — Choose a 4-pack for small jobs or a 150-pack for larger builds and crew stocking
Give your timber connections extra bearing surface and a clean, architectural accent. The OZCO 2″ Heavy-Duty Timber Bolt Washer is a thick, powder-coated plate that slips over the bolt shank and sits beneath your cap nut. It’s purpose-built for the OWT system so your post bases, post-to-beam brackets, and rail hardware share the same durable finish and style across the project.
Why Choose This
- Strength + style — 6-ga plate optimizes bolt performance and elevates the appearance of exposed connections
- Weather protection — Galvanized substrate and powder coat for long outdoor service
- System compatibility — Sized for OWT Timber Bolts and OWT cap nuts so installs go fast and look uniform
Specifications
| Option / Item # | 4-Pack — 56680 | 150-Pack — 16680 |
| Outside Diameter (O.D.) | 2.00″ | |
| Inside Diameter (I.D.) | 0.44″ (fits OWT Timber Bolts) | |
| Thickness | 6-gauge steel (heavy plate) | |
| Material / Finish | Pre-galvanized steel with black exterior-grade powder coat; ACQ-approved | |
| Includes | (4) 2″ HD washers | (150) 2″ HD washers |
| Approx. Pack Weight | ~0.8 lb per 4-pack | — |
| Typical Usage | OWT Timber Bolt connections with Hex Cap Nuts or Hammered Dome Cap Nuts on pergolas, pavilions, decks, and decorative rails | |
Installation
Drill your through-bolt hole and assemble the connection. Slide the 2″ HD washer over the bolt shank on the nut/cap side, seat it flat to the wood surface, then tighten the nut or OWT cap to manufacturer guidance. Do not over-torque against soft species; re-check tightness after initial wood movement. Follow local code/engineering for fastener size, spacing, and load path.
Resources: Manufacturer’s Warranty | Spec Sheet (PDF)
Buying Guide
- Pick your quantity: Order 56680 for small projects (4 washers) or 16680 for large builds (150 washers).
- Complete the look: Pair with OWT Hex Cap Nuts or OWT Hammered Dome Cap Nuts on exposed faces.
- Match the bolt: Use with OWT Timber Bolts sized for your members and embedment.
Frequently Asked Questions
- Do these washers fit OWT Timber Bolts?
- Yes. The 0.44″ I.D. is sized for use with OWT Timber Bolts and their cap nuts.
- Are they suitable for pressure-treated lumber?
- Yes. The pre-galvanized, powder-coated finish is approved for use with ACQ-treated lumber.
- Why use a 2″ washer?
- The larger bearing surface reduces compression of the wood fibers around the bolt, improving connection performance and appearance.
- What pack sizes are available?
- We offer a 4-pack (Item 56680) and a 150-pack (Item 16680).
Comparison
- 2″ HD Timber Bolt Washer (this item): 6-ga heavy plate; pairs with OWT cap nuts for a bold, finished look.
- Standard flat washer: Lower profile and cost, but thinner and less visually consistent with OWT hardware.
- Decorative caps without washer: Fast look upgrade, but less bearing area under the nut/cap on softer timbers.
Need help kitting bolts, caps, and washers for your project? Contact us and we’ll help you choose counts and compatible hardware for a clean, code-conscious build.
