Description
Ronstan Trunnion Snap Shackle 122mm | Boat Supply Store
Engineered for critical load-bearing applications, this Ronstan Trunnion Snap Shackle offers unparalleled articulation. Its trunnion swivel head provides 360° rotation and side-to-side articulation, essential for dynamic rigging on offshore sailboats. Constructed with a Grade 15-5PH investment cast stainless steel body and hasp, and a Grade 316 stainless steel plunger pin and spring, it ensures exceptional strength and superior corrosion resistance in harsh saltwater environments.
Key Features
- Ultimate Articulation: Trunnion swivel head allows 360° rotation and side-to-side articulation.
- Superior Strength: Grade 15-5PH investment cast stainless steel body and hasp for high tensile strength.
- Corrosion Resistance: Premium Grade 15-5PH and 316 stainless steel construction safeguards against saltwater degradation.
- Durability: Grade 316 stainless steel plunger pin and spring ensure long-lasting operational integrity.
- Ease of Use: Large swivel bail facilitates straightforward attachment and handling of lines and equipment.
- Extended Reach: 122mm (4-3/4") overall length offers ample reach for diverse rigging setups.
- Professional Grade: Designed for demanding marine environments and critical load-bearing tasks.
- Robust Construction: Investment cast body provides inherent strength and precision engineering.
Specifications
| Product Specifications | |
|---|---|
| Brand | Ronstan |
| Product Name | Trunnion Snap Shackle - Large Swivel Bail |
| SKU | CWR55316 |
| MPN | RF6321 |
| Overall Length | 122mm (4-3/4") |
| Body Material | Grade 15-5PH Investment Cast Stainless Steel |
| Hasp Material | Grade 15-5PH Investment Cast Stainless Steel |
| Plunger Pin Material | Grade 316 Stainless Steel |
| Spring Material | Grade 316 Stainless Steel |
| Swivel Type | Trunnion Swivel Head |
Who This Is For
Sailors, riggers, and marine professionals demanding a high-performance shackle for critical load-bearing applications. Ideal for situations requiring precise articulation and reliable swivel functionality under significant load.
How It Compares
| Feature | Ronstan Trunnion Snap Shackle 122mm | Competitor |
|---|---|---|
| Length | 122mm (4-3/4") | — |
| Body Material | Grade 15-5PH Investment Cast Stainless Steel | High-strength composite, Anodized aluminum |
| Pin/Spring Material | Grade 316 Stainless Steel | Stainless steel, Stainless steel |
| Swivel Type | Trunnion Swivel Head (360° rotation + side-to-side articulation) | Swivel bail, Swivel bail |
Common Concerns Answered
Is the higher price justified for this shackle?
The initial cost reflects the premium materials like Grade 15-5PH and 316 stainless steel and the advanced trunnion swivel design. This shackle is engineered for superior strength, durability, and corrosion resistance, offering long-term performance and reliability in demanding marine environments, making it a sound investment for critical applications.
Why might the shackle feel stiff initially?
A slight stiffness upon initial use is normal as the precision-machined components settle in. This is typical of high-quality, tightly tolerance marine hardware and will resolve with use, leading to smooth, reliable operation.
Are there less expensive shackle options available?
Yes, less expensive shackles are available, but they typically do not incorporate the advanced trunnion swivel mechanism or the high-grade 15-5PH and 316 stainless steel construction that provides the exceptional strength, articulation, and corrosion resistance of this Ronstan shackle.
Frequently Asked Questions
What is the working load limit (WLL) for the Ronstan Trunnion Snap Shackle - Large Swivel Bail - 122mm?
The Working Load Limit (WLL) for this specific shackle model is not explicitly provided in the product specifications, but its construction from Grade 15-5PH and 316 stainless steel indicates a high load-bearing capacity suitable for critical rigging.
What type of stainless steel is used in the construction of this shackle?
The shackle body and hasp are constructed from premium Grade 15-5PH investment cast stainless steel, while the plunger pin and spring are made from Grade 316 stainless steel.
What is the primary advantage of a trunnion swivel head on a shackle?
The primary advantage of a trunnion swivel head is its ability to provide both 360° rotation and side-to-side articulation. This allows for multi-directional movement of the attached line or fitting, reducing stress and improving the performance of the rigging.
Can this shackle be used in saltwater environments?
Yes, the use of high-grade 15-5PH and 316 stainless steel makes this shackle exceptionally resistant to corrosion, rendering it ideal for use in demanding saltwater marine environments.
What is the overall length of the Ronstan RF6321 shackle?
The overall length of the Ronstan RF6321 Trunnion Snap Shackle is 122mm, which is equivalent to 4-3/4 inches.
