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Description du produit
The Crosby S-319CN Carbon Shank Hooks are engineered for dependable heavy-duty lifting and rigging applications requiring durable carbon steel hook performance. Designed for custom lifting assemblies, crane blocks, and industrial material handling systems, these hooks provide reliable strength, reduced bulk, and long service life in demanding environments.
Manufactured from forged carbon steel and quenched and tempered for enhanced durability, the S-319C and S-319CN hooks feature Crosby’s QUIC-CHECK® deformation indicators and forged identification markings for improved inspection, traceability, and operational safety. The pre-drilled cam design allows latch kits to be added at any time, providing additional flexibility for field applications.
Material:
Forged carbon steel
Quenched and tempered construction
Industrial-duty forged finish
Specifications:
Shank hook design for custom lifting and rigging applications
Available in Working Load Limits from 3/4 ton through 300 metric tons
Hook Identification Code forged into each hook
QUIC-CHECK® deformation and angle indicators forged into hook body
Pre-drilled cam allows optional latch kit installation
Compatible with Crosby latch assemblies
Proper forging and heat treatment reduce excess weight and bulk
Type Approval Certification available for offshore and crane applications
Patented McKissick Split-Nut retention system available
Carbon hooks designed with a 5:1 design factor
Proof load is 2 times the Working Load Limit
Uses:
Crane hook assemblies
Industrial lifting systems
Custom rigging equipment
Material handling applications
Heavy-duty lifting operations
Load block manufacturing
Key Features:
Forged carbon steel construction – Provides dependable lifting strength and durability
QUIC-CHECK® indicators – Simplifies inspection and deformation monitoring
Pre-drilled latch cam – Allows future latch installation flexibility
High strength-to-weight design – Reduces unnecessary hook bulk
Forged identification markings – Supports traceability and inspection programs
Heat treated construction – Improves durability and service life
Wide capacity range – Available for light-duty through heavy industrial lifting applications
| Working Load Limit (t) | Hook ID Code | Stock No. | Shank Length | Dimension D (in) | Dimension F (in) | Dimension G (in) | Dimension H (in) | Dimension J (in) | Dimension K (in) | Dimension L (in) | Dimension M (in) | Dimension Ou (in) | Dimension O2uu (in) | Dimension P (in) | Dimension R (in) | Dimension Tu (in) | Dimension T2uu (in) | Dimension X (in) | Dimension Y (in) | Dimension Z (in) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.75 | †D | 1028505 | Std. | 2.86 | 1.25 | 0.73 | 0.81 | 0.93 | 0.63 | 5.15 | 0.63 | 0.92 | - | 1.95 | 2.36 | 0.85 | - | 0.63 | 2.06 | 0.69 |
| 1 | †F | 1028514 | Std. | 3.15 | 1.38 | 0.84 | 0.94 | 0.97 | 0.71 | 5.68 | 0.71 | 0.96 | - | 2.22 | 2.59 | 0.96 | - | 0.76 | 2.25 | 0.78 |
| 1.5 | †G | 1028523 | Std. | 3.59 | 1.50 | 1.00 | 1.16 | 1.06 | 0.88 | 6.36 | 0.88 | 1.06 | - | 2.45 | 2.77 | 1.02 | - | 0.88 | 2.59 | 0.88 |
| 2 | †H | 1028532 | Std. | 3.99 | 1.63 | 1.13 | 1.31 | 1.19 | 0.94 | 7.13 | 0.94 | 1.15 | - | 2.78 | 3.16 | 1.15 | - | 0.88 | 2.84 | 1.00 |
| 3 | †I | 1028541 | Std. | 4.84 | 2.00 | 1.44 | 1.63 | 1.50 | 1.31 | 8.63 | 1.13 | 1.41 | 1.19 | 3.47 | 3.85 | 1.41 | 1.38 | 1.16 | 3.34 | 1.25 |
| 5 | †J | 1028550 | Std. | 6.27 | 2.50 | 1.81 | 2.06 | 1.78 | 1.66 | 10.43 | 1.44 | 1.69 | 1.38 | 4.57 | 4.78 | 1.93 | 1.81 | 1.41 | 3.84 | 1.56 |
| 7.5 | †K | 1028563 | Std. | 7.54 | 3.00 | 2.25 | 2.63 | 2.41 | 1.88 | 12.51 | 1.63 | 2.22 | 1.87 | 5.25 | 5.88 | 2.32 | 2.19 | 1.81 | 4.38 | 1.94 |
| 10 | †L | 1028590 | Std. | 8.33 | 3.25 | 2.59 | 2.94 | 2.62 | 2.19 | 15.97 | 1.94 | 2.42 | 1.98 | 5.89 | 6.38 | 2.42 | 2.30 | 2.00 | 7.00 | 2.19 |
| 15 | †N | 1028599 | Std. | 10.38 | 4.25 | 3.00 | 3.50 | 3.41 | 2.69 | 18.15 | 2.38 | 3.17 | 2.75 | 6.87 | 8.15 | 2.78 | 2.69 | 2.56 | 7.00 | 2.63 |
Series: S-319CN Carbon Shank Hooks
Proof Load: Maximum allowable Proof Load is 2 times Working Load Limit.
Design Factors: All carbon hooks are designed with a 5:1 design factor. All alloy hooks 1t through 22t are designed with a 4.5:1 design factor. All alloy hooks 30t and larger are designed with a 4:1 design factor. All bronze hooks are designed with a 4:1 design factor.
†: New 319N style hook.
‡: See column “Y” on following page for actual length.
Rough As-Forged Dimension: Shank will not machine to this dimension. Please refer to the Warnings & Applications section for recommended shank diameter when machining.
*: Deformation indicators.
† Latch Dimensions: 3/4t carbon through 22t alloy dimensions shown are for S-4320 Latch Kits.
PL Latch Kits: Dimensions for “O” frame size and larger are for PL Latch Kits.
††: Dimensions are for PL-N latch kits.
D/d Ratio: For the purpose of calculating D/d ratio, utilize Dimension M.
| Specification | Value |
|---|---|
| Series | S-319CN |
| Type | Standard |
| Material | Carbon Steel |