Description
C. Sherman Johnson Jaw/Jaw Turnbuckle - 1/2-20 | Boat Supply Store
For sailors demanding reliable tension adjustment in demanding marine environments, this C. Sherman Johnson turnbuckle provides exceptional durability. Its forged silicon bronze body and 316 stainless steel ends resist corrosion and galling, critical for maintaining rigging integrity. Engineered for 5/16" wire, it offers a substantial 10,500 lbs breaking strength and a 4,200 lbs safe working load, ensuring secure performance across diverse conditions, from coastal cruising to offshore passages.
Key Features
- Superior Material Combination: Forged silicon bronze body with 316 stainless steel ends offers exceptional corrosion resistance and eliminates galling.
- Integral Toggle Jaw: Simplifies rigging by eliminating the need for a separate rigging toggle, reducing complexity and potential failure points.
- High Strength Rating: Boasts a breaking strength of 10,500 lbs and a safe working load of 4,200 lbs for robust rigging applications.
- Easy Adjustment: Open body design and precise threading facilitate smooth and positive locking tension adjustments.
- Durable Construction: Machine swage construction ensures long-lasting performance and reliability under load.
- Traditional Design: Caters to boaters who prefer classic rigging hardware aesthetics and functionality.
- Corrosion Resistance: Silicon bronze and 316 stainless steel are chosen for their superior performance in saltwater environments.
- Simplified Rigging: The integrated jaw design streamlines installation and maintenance of standing and running rigging.
Specifications
| Product Specifications | |
|---|---|
| Body Material | Forged Silicon Bronze |
| End Material | 316 Stainless Steel |
| Wire Size | 5/16" |
| Breaking Strength | 10,500 lbs |
| Safe Working Load | 4,200 lbs |
| Thread Size | 1/2-20 |
| Pin to Pin Length (Closed) | 11-1/2" |
| Pin to Pin Length (Open) | 15-1/2" |
| Body Length | 6-1/2" |
| Pin Diameter | 1/2" |
| Weight | 1 pound |
Who This Is For
Sailors and boaters who appreciate robust, traditional rigging hardware and require precise tension control. Ideal for those seeking a durable, easy-to-adjust turnbuckle for their standing or running rigging where longevity and performance are paramount.
How It Compares
| Feature | C. Sherman Johnson Jaw/Jaw Turnbuckle - 1/2-20 | Competitor |
|---|---|---|
| Body Material | Forged Silicon Bronze / 316 Stainless Steel Ends | 316 Stainless Steel |
| Integral Toggle Jaw | Yes | No |
| Safe Working Load | 4,200 pounds | 3,850 pounds, 4,000 pounds |
| Thread Size | 1/2-20 | 1/2" |
| Pin to Pin Length (Open) | 15-1/2" | 15-3/4", 15-1/2" |
Common Concerns Answered
Is the price a barrier to entry for this turnbuckle?
While the initial investment is higher, the premium forged silicon bronze and 316 stainless steel construction, along with the integrated toggle jaw, ensures superior longevity and performance, justifying the cost for critical rigging components.
Are there any aesthetic concerns with mixed-material hardware?
Minor variations in finish between the silicon bronze body and stainless steel ends are typical for mixed-material marine hardware and do not affect structural integrity or functionality.
How does this turnbuckle compare to all stainless steel options?
The combination of forged silicon bronze and 316 stainless steel offers a non-galling advantage and excellent corrosion resistance, often outperforming all-stainless steel assemblies in preventing seizure in marine environments.
Frequently Asked Questions
What is the breaking strength of the C. Sherman Johnson Jaw/Jaw Open Body Turnbuckle - 1/2-20 Thread?
The breaking strength for this turnbuckle is rated at 10,500 lbs.
What is the safe working load for this turnbuckle?
The safe working load for this turnbuckle is 4,200 lbs.
What materials are used in the construction of this turnbuckle?
The turnbuckle features a forged silicon bronze body and 316 stainless steel ends.
What are the open and closed pin-to-pin lengths for this turnbuckle?
The pin-to-pin length is 11-1/2" when closed and 15-1/2" when open.
Does this turnbuckle require a separate rigging toggle?
No, this turnbuckle features an integral toggle jaw, eliminating the need for a separate rigging toggle component.
