Crosby 418 Snatch Block Series (Hook Fitting)
The Crosby 418 Snatch Block is a go-to single-sheave block for lifting, line redirection, and rigging where fast rope installation and dependable hardware matter. Below are 418-only catalog part numbers, grouped by Working Load Limit range.
Pro Tip: Select BB (bronze bushings) for slower, intermittent duty. Choose RB (roller bearings) for higher line speeds and frequent cycling to reduce friction and improve efficiency.
- Opening side plates for quick rope insertion (no full reeving required)
- Retained bolt helps prevent lost hardware during opening
- Forged swivel hook with latch
- Pressure lube fitting on center pin
- Sheave grooves suited for the listed wire rope ranges
418 Series Specifications
| Part Number | Working Load Limit | Wire Rope Size (in) | Sheave Dia. (in) | Bearing Code | Overall Length (in) | Weight (lb) |
|---|---|---|---|---|---|---|
| 2 Metric Tons | ||||||
| 108038 | 2 t | 5/16 – 3/8 | 3 | BB | 9.74 | 5 |
| 4 Metric Tons | ||||||
| 108065 | 4 t | 3/8 – 1/2 | 4.5 | BB | 14.12 | 12 |
| 8 Metric Tons | ||||||
| 108127 | 8 t | 5/8 – 3/4 | 6 | BB | 18.95 | 27 |
| 108154 | 8 t | 5/8 – 3/4 | 6 | RB | 18.95 | 27 |
| 108225 | 8 t | 5/8 – 3/4 | 8 | BB | 21.01 | 33 |
| 108252 | 8 t | 5/8 – 3/4 | 8 | RB | 21.01 | 33 |
| 108323 | 8 t | 5/8 – 3/4 | 10 | BB | 23.08 | 41 |
| 108350 | 8 t | 5/8 – 3/4 | 10 | RB | 23.08 | 41 |
| 108421 | 8 t | 5/8 – 3/4 | 12 | BB | 25.89 | 48 |
| 108458 | 8 t | 5/8 – 3/4 | 12 | RB | 25.89 | 48 |
| 108528 | 8 t | 5/8 – 3/4 | 14 | BB | 27.39 | 55 |
| 108546 | 8 t | 5/8 – 3/4 | 14 | RB | 27.39 | 55 |
| 15 Metric Tons | ||||||
| 108608 | 15 t | 3/4 – 7/8 | 16 | BB | 32.25 | 130 |
| 108626 | 15 t | 3/4 – 7/8 | 16 | RB | 32.25 | 130 |
| 108644 | 15 t | 7/8 – 1 | 18 | BB | 33.50 | 150 |
| 108662 | 15 t | 7/8 – 1 | 18 | RB | 33.50 | 150 |
Important Application & Safety Reminders
- Rig and operate blocks only under the direction of a qualified person.
- Do not side load the block—use in-line loading only.
- Account for shock loading (jerking/impact) when calculating total load.
- Inspect regularly for wear, cracks, deformation, and corrosion; remove from service if damage is found.
- Never use a block without a legible capacity tag.
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