-
files/riayer-silver-bolt-type-anchor-shackle-with-cotter-pin.png
-
files/heavy-duty-marine-towing-and-anchoring-bow-shackle-silver.jpg
-
files/triple-lock-safety-pin-shackle-components-silver.jpg
-
files/triple-lock-safety-pin-shackle-components-silver-5.jpg
-
files/triple-lock-safety-pin-shackle-components-silver-9.jpg
-
files/rust-resistant-polished-silver-marine-grade-shackle.jpg
-
files/bolt-type-bow-shackle-dimensions-size-chart-silver.jpg
-
files/riayer-silver-bolt-type-anchor-shackle-with-cotter-pin-1.png
-
files/heavy-duty-marine-towing-and-anchoring-bow-shackle-silver-2.jpg
-
files/triple-lock-safety-pin-shackle-components-silver-2.jpg
-
files/triple-lock-safety-pin-shackle-components-silver-6.jpg
-
files/triple-lock-safety-pin-shackle-components-silver-10.jpg
-
files/rust-resistant-polished-silver-marine-grade-shackle-1.jpg
-
files/bolt-type-bow-shackle-dimensions-size-chart-silver-1.jpg
-
files/riayer-silver-bolt-type-anchor-shackle-with-cotter-pin-2.png
-
files/heavy-duty-marine-towing-and-anchoring-bow-shackle-silver-3.jpg
-
files/triple-lock-safety-pin-shackle-components-silver-3.jpg
-
files/triple-lock-safety-pin-shackle-components-silver-7.jpg
-
files/triple-lock-safety-pin-shackle-components-silver-11.jpg
-
files/rust-resistant-polished-silver-marine-grade-shackle-3.jpg
-
files/bolt-type-bow-shackle-dimensions-size-chart-silver-2.jpg
-
files/riayer-silver-bolt-type-anchor-shackle-with-cotter-pin-3.png
-
files/heavy-duty-marine-towing-and-anchoring-bow-shackle-silver-4.jpg
-
files/triple-lock-safety-pin-shackle-components-silver-4.jpg
-
files/triple-lock-safety-pin-shackle-components-silver-8.jpg
-
files/triple-lock-safety-pin-shackle-components-silver-12.jpg
-
files/rust-resistant-polished-silver-marine-grade-shackle-4.jpg
-
files/bolt-type-bow-shackle-dimensions-size-chart-silver-4.jpg
Maximum Security for Critical Rigging
Engineered for permanent or long-term installations, our Bolt-Type Safety Bow Shackles provide the highest level of security in the marine hardware class. Unlike standard screw-pin shackles, this model features a 3-part locking system: a bolt, a nut, and a stainless steel cotter pin.
Crafted from premium T316 Stainless Steel with a Polished Silver finish. The "Omega" bow shape allows for multi-directional loading, making them perfect for anchoring, towing, and heavy-duty industrial lifting where vibration might cause a standard pin to back out.
Key Features
- Triple-Lock Safety System: The combination of a threaded bolt, hex nut, and cotter pin ensures the shackle will never accidentally open, even under constant rotation or vibration.
- Marine Grade T316 Steel: Superior molybdenum content offers maximum corrosion resistance in harsh saltwater environments.
- Oversized Bolt Design: As shown in the specs, the bolt diameter (B) is significantly larger than the body (A) for enhanced shear strength.
- Wide Bow Opening: The generous interior width allows for the attachment of multiple lines, thimbles, or straps without binding.
How to Install (Step-by-Step Guide)
Proper installation is critical for the safety mechanism to work effectively:
- Disassemble: Straighten the legs of the cotter pin (if bent), pull it out, unscrew the hex nut, and slide the bolt out of the shackle body.
- Attach: Align the shackle bow with your anchor chain, recovery strap, or rigging point.
- Insert Bolt: Slide the bolt through the shackle eyes and your attachment point. Ensure it seats fully.
- Secure Nut: Thread the hex nut onto the bolt and tighten it (hand-tight is often sufficient for light loads, but a wrench ensures a snug fit).
- Lock with Pin: Insert the cotter pin through the hole at the end of the bolt. Crucial Step: Bend the split legs of the cotter pin outward to lock the nut in place.
Technical Specifications & Size Map
Please refer to the chart below to ensure the pin fits your equipment.
Note: The Pin/Bolt Diameter (B) is larger than the Body Diameter (A).
| Size Map | A Body Dia. |
B Pin/Bolt Dia. |
C Opening |
D Inner Height |
WLL (Working Load) |
|---|---|---|---|---|---|
| 1/4" | 1/4" | 5/16" | 0.46" | 1.1" | 880 lbs |
| 5/16" | 5/16" | 3/8" | 0.5" | 1.2" | 1,300 lbs |
| 3/8" | 3/8" | 1/2" | 0.7" | 1.4" | 2,200 lbs |
| 1/2" | 1/2" | 5/8" | 0.8" | 1.8" | 3,000 lbs |
Frequently Asked Questions
Q: Why choose this "Bolt Type" over a standard screw pin?
A: Bolt-type shackles are the industry standard for permanent or semi-permanent installations. The cotter pin prevents the nut from backing off, making it safer for applications involving vibration (like engines or towing) or where the shackle might rub against surfaces.
Q: How do I measure the correct size?
A: Check the "B (Pin/Bolt)" column in the table. This is the part that must pass through your chain link or anchor hole. For example, a 3/8" shackle actually requires a 1/2" clearance hole.
- Regular price
- $9.99
Maximum Security for Critical Rigging
Engineered for permanent or long-term installations, our Bolt-Type Safety Bow Shackles provide the highest level of security in the marine hardware class. Unlike standard screw-pin shackles, this model features a 3-part locking system: a bolt, a nut, and a stainless steel cotter pin.
Crafted from premium T316 Stainless Steel with a Polished Silver finish. The "Omega" bow shape allows for multi-directional loading, making them perfect for anchoring, towing, and heavy-duty industrial lifting where vibration might cause a standard pin to back out.
Key Features
- Triple-Lock Safety System: The combination of a threaded bolt, hex nut, and cotter pin ensures the shackle will never accidentally open, even under constant rotation or vibration.
- Marine Grade T316 Steel: Superior molybdenum content offers maximum corrosion resistance in harsh saltwater environments.
- Oversized Bolt Design: As shown in the specs, the bolt diameter (B) is significantly larger than the body (A) for enhanced shear strength.
- Wide Bow Opening: The generous interior width allows for the attachment of multiple lines, thimbles, or straps without binding.
How to Install (Step-by-Step Guide)
Proper installation is critical for the safety mechanism to work effectively:
- Disassemble: Straighten the legs of the cotter pin (if bent), pull it out, unscrew the hex nut, and slide the bolt out of the shackle body.
- Attach: Align the shackle bow with your anchor chain, recovery strap, or rigging point.
- Insert Bolt: Slide the bolt through the shackle eyes and your attachment point. Ensure it seats fully.
- Secure Nut: Thread the hex nut onto the bolt and tighten it (hand-tight is often sufficient for light loads, but a wrench ensures a snug fit).
- Lock with Pin: Insert the cotter pin through the hole at the end of the bolt. Crucial Step: Bend the split legs of the cotter pin outward to lock the nut in place.
Technical Specifications & Size Map
Please refer to the chart below to ensure the pin fits your equipment.
Note: The Pin/Bolt Diameter (B) is larger than the Body Diameter (A).
| Size Map | A Body Dia. |
B Pin/Bolt Dia. |
C Opening |
D Inner Height |
WLL (Working Load) |
|---|---|---|---|---|---|
| 1/4" | 1/4" | 5/16" | 0.46" | 1.1" | 880 lbs |
| 5/16" | 5/16" | 3/8" | 0.5" | 1.2" | 1,300 lbs |
| 3/8" | 3/8" | 1/2" | 0.7" | 1.4" | 2,200 lbs |
| 1/2" | 1/2" | 5/8" | 0.8" | 1.8" | 3,000 lbs |
Frequently Asked Questions
Q: Why choose this "Bolt Type" over a standard screw pin?
A: Bolt-type shackles are the industry standard for permanent or semi-permanent installations. The cotter pin prevents the nut from backing off, making it safer for applications involving vibration (like engines or towing) or where the shackle might rub against surfaces.
Q: How do I measure the correct size?
A: Check the "B (Pin/Bolt)" column in the table. This is the part that must pass through your chain link or anchor hole. For example, a 3/8" shackle actually requires a 1/2" clearance hole.
- Regular price
- $9.99
Maximum Security for Critical Rigging
Engineered for permanent or long-term installations, our Bolt-Type Safety Bow Shackles provide the highest level of security in the marine hardware class. Unlike standard screw-pin shackles, this model features a 3-part locking system: a bolt, a nut, and a stainless steel cotter pin.
Crafted from premium T316 Stainless Steel with a Polished Silver finish. The "Omega" bow shape allows for multi-directional loading, making them perfect for anchoring, towing, and heavy-duty industrial lifting where vibration might cause a standard pin to back out.
Key Features
- Triple-Lock Safety System: The combination of a threaded bolt, hex nut, and cotter pin ensures the shackle will never accidentally open, even under constant rotation or vibration.
- Marine Grade T316 Steel: Superior molybdenum content offers maximum corrosion resistance in harsh saltwater environments.
- Oversized Bolt Design: As shown in the specs, the bolt diameter (B) is significantly larger than the body (A) for enhanced shear strength.
- Wide Bow Opening: The generous interior width allows for the attachment of multiple lines, thimbles, or straps without binding.
How to Install (Step-by-Step Guide)
Proper installation is critical for the safety mechanism to work effectively:
- Disassemble: Straighten the legs of the cotter pin (if bent), pull it out, unscrew the hex nut, and slide the bolt out of the shackle body.
- Attach: Align the shackle bow with your anchor chain, recovery strap, or rigging point.
- Insert Bolt: Slide the bolt through the shackle eyes and your attachment point. Ensure it seats fully.
- Secure Nut: Thread the hex nut onto the bolt and tighten it (hand-tight is often sufficient for light loads, but a wrench ensures a snug fit).
- Lock with Pin: Insert the cotter pin through the hole at the end of the bolt. Crucial Step: Bend the split legs of the cotter pin outward to lock the nut in place.
Technical Specifications & Size Map
Please refer to the chart below to ensure the pin fits your equipment.
Note: The Pin/Bolt Diameter (B) is larger than the Body Diameter (A).
| Size Map | A Body Dia. |
B Pin/Bolt Dia. |
C Opening |
D Inner Height |
WLL (Working Load) |
|---|---|---|---|---|---|
| 1/4" | 1/4" | 5/16" | 0.46" | 1.1" | 880 lbs |
| 5/16" | 5/16" | 3/8" | 0.5" | 1.2" | 1,300 lbs |
| 3/8" | 3/8" | 1/2" | 0.7" | 1.4" | 2,200 lbs |
| 1/2" | 1/2" | 5/8" | 0.8" | 1.8" | 3,000 lbs |
Frequently Asked Questions
Q: Why choose this "Bolt Type" over a standard screw pin?
A: Bolt-type shackles are the industry standard for permanent or semi-permanent installations. The cotter pin prevents the nut from backing off, making it safer for applications involving vibration (like engines or towing) or where the shackle might rub against surfaces.
Q: How do I measure the correct size?
A: Check the "B (Pin/Bolt)" column in the table. This is the part that must pass through your chain link or anchor hole. For example, a 3/8" shackle actually requires a 1/2" clearance hole.
-
Vendor: RiaYer
RiaYer Single Swivel Sailing Block | Compact Marine Pulley (35mm/50mm)
Regular price From $15.99 -
Vendor: RiaYer
RiaYer Double Sheave Sailing Block | T316 Stainless & Nylon Marine Pulley (35mm/50mm)
Regular price From $27.99 -
Vendor: RiaYer
RiaYer T316 Stainless Steel Swivel Becket Block | Marine Pulley (35mm / 50mm)
Regular price From $20.99 -
Vendor: RiaYer
RiaYer Swivel Becket Block with Cam Cleat | T316 Stainless Steel Marine Pulley (35mm/50mm)
Regular price From $47.99
Frequently Bought Together
-
Vendor: RiaYer
RiaYer Single Swivel Sailing Block | Compact Marine Pulley (35mm/50mm)
Regular price From $15.99 -
Vendor: RiaYer
RiaYer Double Sheave Sailing Block | T316 Stainless & Nylon Marine Pulley (35mm/50mm)
Regular price From $27.99 -
Vendor: RiaYer
RiaYer T316 Stainless Steel Swivel Becket Block | Marine Pulley (35mm / 50mm)
Regular price From $20.99 -
Vendor: RiaYer
RiaYer Swivel Becket Block with Cam Cleat | T316 Stainless Steel Marine Pulley (35mm/50mm)
Regular price From $47.99
