Sea-Dog Line 337145-1 Screw-Out Deck Plate 4 Inch Black

The Sea-Dog Line 337145-1 is a 4-inch screw-out deck plate designed for reliable access to storage compartments, fuel fills, and other below-deck areas on boats and marine vessels. This deck plate features high-quality construction molded with premium UV stabilizers and antioxidants to withstand harsh marine environments and resist fading, cracking, and deterioration from sun exposure.

Key Features:

• 4-inch diameter screw-out design for easy access and secure closure
• Black UV-stabilized construction resists sun damage and weathering
• Antioxidant additives prevent material degradation over time
• Threaded design creates watertight seal when properly installed
• Smooth operating threads for reliable opening and closing

Installation and Maintenance:

For proper installation, apply marine-grade silicone sealant to the hull or deck surface before mounting to ensure a watertight seal. Keep threads clean by washing regularly with hot soapy water to prevent dirt and salt buildup. Lubricate threads periodically with petroleum jelly or PTFE-based lubricant to maintain smooth operation and prevent seizing.

Ideal for both new boat construction and replacement applications, this deck plate provides durable, long-lasting access to below-deck compartments while maintaining a clean, professional appearance.