The Green Pin G-4143 Bow Shackle (Flat Nut) is a standard bow shackle with flat nut pin closure for general purpose overhead lifting. The bow shape accommodates multi-directional sling loads, making it one of the most versatile shackles in the Green Pin range.
Key Features
- Flat nut pin for secure closure
- Bow shape for multi-directional loading
- Forged alloy steel, quenched and tempered
- Hot-dip galvanized
- Individually proof tested at 2x WLL
Common Applications
- General purpose overhead lifting
- Multi-leg sling connections
- Construction, marine, and industrial rigging
Why Green Pin?
The G-4143 is one of the most widely used shackles in the world. Individually proof tested by Van Beest with full traceability.
Specifications — Full Dimensions by Size
| Size (in)(mm) | WLL (t) | Weight (lb)(kg) | A (in)(mm) | B (in)(mm) | C (in)(mm) | D (in)(mm) | E (in)(mm) | F (in)(mm) | G (in)(mm) | H (in)(mm) | I (in)(mm) | J (in)(mm) | K (in)(mm) | L (in)(mm) | M (in)(mm) | Stock # |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 0.920.42 | 1/213.5 | 5/816 | 1 11/3234 | 1/213 | 7/822 | 251 | 1 1/432 | 3 17/3290 | 3 5/3280 | 2 5/1659 | 1/213 | M6M6 | 1 3/835 | GPGHMB13FN | |
| 3.25 | 1.620.74 | 5/816 | 3/419 | 1 9/1640 | 5/816 | 1 1/1627 | 2 17/3264 | 1 11/1643 | 4 11/32110 | 3 27/3298 | 2 15/3275 | 21/3217 | M6M6 | 1 9/1640 | GPGHMB16FN | |
| 4.75 | 2.591.18 | 3/419 | 7/822 | 1 13/1646 | 3/419 | 1 7/3231 | 376 | 251 | 5 3/32129 | 4 17/32115 | 3 1/289 | 3/419 | M6M6 | 1 25/3245 | GPGHMB19FN | |
| 6.5 | 3.901.77 | 7/822 | 125 | 2 1/1652 | 7/822 | 1 13/3236 | 3 9/3283 | 2 9/3258 | 5 21/32144 | 5 1/8130 | 4 1/32102 | 7/822 | M8M8 | 1 31/3250 | GPGHMB22FN | |
| 8.5 | 5.692.58 | 125 | 1 1/828 | 2 5/1659 | 31/3225 | 1 11/1643 | 3 3/495 | 2 11/1668 | 6 15/32164 | 5 29/32150 | 4 21/32118 | 31/3225 | M8M8 | 2 5/3255 | GPGHMB25FN | |
| 9.5 | 8.073.66 | 1 1/828 | 1 1/432 | 2 5/867 | 1 3/3228 | 1 27/3247 | 4 1/4108 | 2 15/1675 | 7 5/16186 | 6 17/32166 | 5 5/32131 | 1 1/1627 | M10M10 | 2 3/860 | GPGHMB28FN | |
| 12 | 10.64.80 | 1 1/432 | 1 3/835 | 2 7/873 | 1 1/432 | 251 | 4 17/32115 | 3 9/3283 | 7 29/32201 | 7 1/4184 | 5 25/32147 | 1 3/1630 | M10M10 | 2 9/1665 | GPGHMB32FN | |
| 13.5 | 14.46.54 | 1 3/835 | 1 1/238 | 3 1/879 | 1 3/835 | 2 1/457 | 5 1/4133 | 3 5/892 | 8 15/16227 | 7 3/4197 | 6 3/8162 | 1 5/1633 | M10M10 | 2 3/470 | GPGHMB35FN | |
| 17 | 18.18.19 | 1 1/238 | 1 5/842 | 3 15/3288 | 1 1/238 | 2 3/860 | 5 3/4146 | 3 29/3299 | 9 13/16249 | 7 15/16202 | 6 7/8175 | 3/419 | M8M8 | 2 15/1675 | GPGHMB38FN | |
| 25 | 30.814.0 | 1 3/445 | 250 | 4 3/32104 | 1 25/3245 | 2 29/3274 | 7178 | 4 31/32126 | 11 13/16300 | 9 9/16243 | 8 1/2216 | 29/3223 | M8M8 | 3 17/3290 | GPGHMB45FN | |
| 35 | 43.819.9 | 250 | 2 1/457 | 4 13/32112 | 1 31/3250 | 3 9/3283 | 7 3/4197 | 5 7/16138 | 13 1/16332 | 10 19/32269 | 9 3/8238 | 1 1/3226 | M10M10 | 3 15/16100 | GPGHMB50FN | |
| 42.5 | 62.528.3 | 2 1/457 | 2 9/1665 | 5 3/16132 | 2 1/457 | 3 3/495 | 8 3/4222 | 6 5/16160 | 14 7/8378 | 11 27/32301 | 10 23/32274 | 1 5/3229 | M12M12 | 4 11/32110 | GPGHMB57FN | |
| 55 | 87.339.6 | 2 1/265 | 2 3/470 | 5 23/32145 | 2 9/1665 | 4 1/8105 | 10 1/4260 | 7 3/32180 | 17 1/16433 | 12 15/16329 | 12 7/32310 | 1 1/432 | M12M12 | 4 23/32120 | GPGHMB65FN | |
| 85 | 13762 | 375 | 3 1/483 | 6 9/16167 | 2 15/1675 | 5127 | 13330 | 7 15/32190 | 20 7/8530 | 15381 | 13 3/8340 | 1 17/3239 | M12M12 | 5 1/2140 | GPGHMB75FN |
Dimensions sourced directly from manufacturer catalog pages.
Standards & Compliance
Every product we carry is individually marked with Working Load Limit (WLL), manufacturer traceability code, and country of origin. Inspection and mill certificates are available on request — email sales@slingcenter.com with your order number.
Governing Standards
- ASME B30.9 — slings (web, round, wire rope, chain) inspection and use
- ASME B30.26 — rigging hardware (shackles, eye bolts, links, turnbuckles)
- ASME B30.10 — hooks
- OSHA 1910.184 and 1926.251 — general industry and construction sling safety
- WSTDA WS-2 and RS-1 — web and round sling design
- 49 CFR 393.102 to 393.130 — DOT cargo tie-down
- NACM — welded steel chain grade specs
Inspection & Safety
Before every use: visual check for cracks, corrosion, distortion, wear, and illegible markings. Annually (minimum): documented periodic inspection by a trained inspector. Remove from service at first sign of damage. Never repair rigging hardware by welding, heating, or bending.
WARNING: Improper use of rigging can cause death or serious injury. Never exceed the rated Working Load Limit. Apply derating for side-loading, elevated temperature, or chemical exposure. Final application decisions must be made by a Qualified Person per OSHA 1926.32(m).
Chat with our AI rigging specialist
Fastest: click the Ask SlingCenter chat widget in the bottom-right of any page. Our AI specialist is available 24/7 and trained on ASME B30.9, B30.26, OSHA rigging standards, and our full catalog. It can help you size a sling, pick the right shackle, explain inspection criteria, and look up your order.
Prefer to email?
Send to: sales@slingcenter.com
Include:
- What you are lifting (shape, material, fragility)
- Load weight (lb)
- Length / reach needed
- Pick points — smooth lugs, sharp edges, or a hook?
- Environment — indoor, outdoor, heat, saltwater, chemicals?
- Quantity and timeline
- Your phone number if you want a callback
Response: AI chat instant. Email within 1 business day. Urgent orders same-day on standard configurations.
Order Sheet — 14 variants
Search below or click column headers to sort. Add any quantity per row to your cart.
| Option ▴▾ | SKU ▴▾ | Price ▴▾ | Stock | Qty | Add |
|---|---|---|---|---|---|
| 13 mm (1/2") | GPGHMB13FN | $28.45 | ✓ In Stock | ||
| 16 mm (5/8") | GPGHMB16FN | $42.27 | ✓ In Stock | ||
| 19 mm (3/4") | GPGHMB19FN | $61.25 | ✓ In Stock | ||
| 22 mm (7/8") | GPGHMB22FN | $87.38 | ✓ In Stock | ||
| 25 mm (1") | GPGHMB25FN | $118.31 | ✓ In Stock | ||
| 28 mm (1-1/8") | GPGHMB28FN | $151.84 | ✓ In Stock | ||
| 32 mm (1-1/4") | GPGHMB32FN | $206.23 | ✓ In Stock | ||
| 35 mm (1-3/8") | GPGHMB35FN | $286.32 | ✓ In Stock | ||
| 38 mm (1-1/2") | GPGHMB38FN | $315.35 | ✓ In Stock | ||
| 45 mm (1-3/4") | GPGHMB45FN | $549.58 | ✓ In Stock | ||
| 50 mm (2") | GPGHMB50FN | $827.19 | ✓ In Stock | ||
| 57 mm (2-1/4") | GPGHMB57FN | $1,302.44 | ✓ In Stock | ||
| 65 mm (2-1/2") | GPGHMB65FN | $1,752.89 | ✓ In Stock | ||
| 75 mm (3") | GPGHMB75FN | $2,834.64 | ✓ In Stock |
Bulk order? Email sales@slingcenter.com with your list — we'll build a single quote.
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