







316 Stainless Steel Mooring Spring - Heavy-Duty Shock Absorbing Dock Line
Tax included (excl. Monaco, Norway, N. Ireland). Check Cart/Checkout for rates. Shipping options (Standard 8-15d / Economy 25-45d) vary by address and weight. Delivery to remote areas is subject to extended transit times. Save ~7% on shipping for orders >100kg (220lbs).
Settlement Protocols
SECURE_ENCRYPTION_PROTOCOL_ACTIVE
Advanced Marine Shock Absorption
Protect your vessel's structural integrity with the AirowMarine 316 Stainless Steel Mooring Spring. Engineered for high-stress marine environments, this heavy-duty shock absorber significantly reduces the kinetic energy transferred to your boat's cleats and dock lines during heavy surges.
- AISI 316 Marine Grade: Superior corrosion resistance for saltwater environments compared to 304 stainless steel.
- Silent Operation: Integrated internal polymer mufflers eliminate the metal-on-metal squeaking common in traditional springs.
- Precision Engineering: CNC-formed coils provide consistent compression and rebound cycles for long-term durability.
- Universal Compatibility: Designed for use with nylon, polyester, or polypropylene dock lines.
Frequently Asked Questions
- Will this mooring spring create annoying squeaking noises at night?
- No. Our design features internal high-density polymer mufflers that prevent metal-on-metal contact, ensuring completely silent operation and a peaceful night at the marina.
- Is 316 stainless steel really necessary for saltwater use?
- Yes. Unlike 304 stainless or galvanized steel, our 316 marine-grade alloy contains molybdenum, providing essential resistance to chloride pitting and rust in harsh saltwater environments.
- How do I choose the correct size for my boat?
- Sizing is based on vessel displacement. For boats 10-16 tons, we recommend the 7x400mm variant. Larger vessels over 40 tons should utilize the 12x470mm heavy-duty model for optimal shock absorption.
Engineering Specs
ESTABLISHED 2017
AirowMarine
Professional Marine Hardware for a Safer Voyage.











