Product Description
OZCO® OWT Hex Cap Nuts — 1″ & 1-1/2″ — Decorative Covers for OWT Screws & Bolts
- Clean, Finished Look — Conceals the head of OWT Timber Screws and other fasteners for a refined, tamper-resistant finish
- Two Sizes — Choose 1″ caps for #8 self-drilling screws, or 1-1/2″ caps sized for OWT Timber Screws
- Outdoor-Ready — Black, powder-coated aluminum stands up to weather on decks, pergolas, arbors, and fences
- Simple, Fast Install — Thread the cap on after driving the fastener; press in the plug for a finished, low-profile look
- OWT System Compatible — Matches OWT Post Bases, Post-to-Beam plates, Truss Accents, and more
OWT Hex Cap Nuts are the small detail that makes wood structures look custom-built. These 2-piece accents hide the lag screw fasteners on any project, giving it a more refined look and improving safety by concealing the hardware underneath. These nuts are available in both 1" and 1-1/2" sizes. The 1" covers a #8 Self Drill Screw (sold separately), while the 1-1/2" nut was designed to work with OZCO OWT Timber Screws.
After you drive your OWT fastener, thread on the cap and seat the included plug to hide the hardware and discourage tampering. Use 1-1/2″ caps with OWT Timber Screws on plates, bases, and truss accents; use 1″ caps when you’re covering #8 self-drilling screws on lighter trim or accessory pieces. The durable, powder-coated aluminum construction is made for exterior projects and blends seamlessly with the rest of the OWT line.
Why Choose This
- Refined aesthetics — Hides fastener heads so the connection hardware doesn’t distract from your build
- Helps deter tampering — Finished cap and plug make casual removal less likely
- Part of a system — Sized to work with OWT Timber Screws and the broader OWT connector family
Specifications
| Variant | 1″ Hex Cap Nut (10-Pack) | 1-1/2″ Hex Cap Nut (10-Pack) | 1-1/2″ Hex Cap Nut (250-Pack) |
| OWT Item # | 56681 | 56621 | 16621 |
| Fits / Covers | #8 self-drilling wood screws | OWT Timber Screws | OWT Timber Screws |
| Material / Finish | Powder-coated aluminum, exterior-grade black | ||
| Cap Outside Diameter | 1″ | 1-1/2″ | 1-1/2″ |
| Kit Contents | 10 Hex Cap Nuts + 10 Cap Plugs | 10 Hex Cap Nuts + 10 Cap Plugs | 250 Hex Cap Nuts + Cap Plugs |
| Typical Applications | OWT Post Bases, Post-to-Beam plates, Truss Accents, pergolas, pavilions, fences, gates, and outdoor furniture | ||
| Pack Weight (approx.) | ~1.1 lb (per 10-pack) | ~1.1 lb (per 10-pack) | — |
Installation
Lay out and mount your OWT connector. Drive the appropriate fastener (e.g., OWT Timber Screw with a 3/8″ hex driver). Thread the hex cap onto the fastener until seated, then press the plug into the cap recess to finish. Re-check alignment and tighten hardware as needed. For disassembly, remove the plug and unthread the cap.
Buying Guide
- Pick your size: Use 1-1/2″ caps with OWT Timber Screws on structural connections; use 1″ caps to conceal #8 screws on lighter accessories and trim.
- Match the system: These caps are cosmetic; choose fastener length and connector sizing per your OWT bracket or base.
- Suggested complements: OWT Timber Screws and OWT Timber Bolts for through-bolt looks without exposed threads.
Frequently Asked Questions
- Do these include the screws?
- No. The caps and plugs are included; select your OWT fasteners separately to match the connector and load.
- Are the caps weather resistant?
- Yes. They’re powder-coated aluminum designed for outdoor service when installed per OWT instructions.
- Can I remove a cap later?
- Yes. Pop out the plug and unthread the cap to access the fastener head.
- Which size should I use?
- Use 1-1/2″ with OWT Timber Screws on plates and bases; use 1″ for covering #8 screws on lighter accessories.
Comparison
- Hex Cap Nut (this item): Flat-faced aesthetic; pairs cleanly with OWT Timber Screws and most OWT connectors.
- Hammered Dome Cap Nut: Same concealment with a rounded, hammered style for a more rustic look.
- No cap used: Fastest/cheapest, but leaves screw heads exposed and easier to tamper with.
Need help choosing sizes or matching caps to your OWT brackets? Contact us and we’ll help you kit everything for a clean, code-conscious install.
