Green Pin® Theatre Shackle SC
- No glare or unwanted reflections thanks to the matte black finish.
- Quick assembly with screw collar pin.
- Designed for theater and stage rigging.
- The recessed chamber in the shackle eye protects the screw thread and helps reduce wear.
- Reliable Green Pin® quality and support
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Green Pin® Theatre Shackle SC
The Green Pin® Theatre Shackle SC is a matte black bow shackle with a screw collar pin, specifically designed for use in theaters, stages, and entertainment venues. Its non-reflective black finish eliminates unwanted glare and reflections, ensuring that it does not distract from stage performances or lighting effects.
The screw pin design allows for quick and easy assembly and disassembly, making it ideal for rigging applications where equipment is frequently installed and removed. In addition, the shackle features a recessed chamber in the eye that conceals the screw thread and helps reduce rope wear during use.
Available in a range of working load limits from 0.33 up to 8.5 tons, the Green Pin® Theatre Shackle SC combines professional functionality with the trusted reliability and quality of Green Pin® products.
Product Features:
- Matte black bow shackle with screw collar pin
- Designed specifically for theaters and entertainment venues
- Non-reflective finish eliminates glare and light reflections
- Screw pin enables quick assembly and disassembly
- Recessed chamber in the shackle eye protects the screw thread
- Reduces rope wear during operation
- Ideal for frequent rigging applications
- Available with working load limits from 0.33 t to 8.5 t
- Reliable Green Pin® quality and support
Note: Main dimensions, general info and warnings can be found in our latest catalogue.
If the recommendations in this product information are followed performance of the shackles is guaranteed:
- permanent identification marks, or symbols, are to be made by dot peen marking or with stamps having rounded profiles (low stress stamps).
- laser markings are allowed as long as the heat of the laser does not influence the material structure and properties in a negative way. The laser marking must be legibly and indelibly marked in a place where the markings will not be removed by use.
- the number of marks on a shackle is to be kept to the minimum.
- the use of fractions and oblique strokes is to be avoided and a dot or hyphen is preferable to a dividing line.
- values of WLL are, generally, to be marked to one place of decimals (except for 0.25 and 0.75) up to 100 t and in integers thereafter. The word “tonnes” may be abbreviated to “t”.
- recommended sizes of marks are
- Diameter of part to be marked > recommended size of mark
- less then 12.5 mm > 3.0 mm
- 12.5 to 26 mm > 4.5 mm
- over 26 mm > 6.0 mm
Typical arrangements of marks can be found in the following illustrations.



Product Details:
| Product Code: | G-4161T |
| Material: | Bow and pin high tensile steel, Grade 6, quenched and tempered |
| Safety Factor: | MBL equals 6 × WLL |
| Finish: | Matte black |
| Temperature Range: | -40°C up to +200°C |
| Certification: | 2.1, 2.2, 3.1, MTCa, CE |
| Standard: | EN 13889 and meets performance requirements of US Fed. Spec. RR-C-271 Type IVA Class 2, Grade A. From 2 t and upward, these shackles comply with ASME B30.26 |
| Article Code | Net Weight (lbs) | Bow Ø (inch) | Pin Ø (inch) | Eye Ø (inch) | Eye Width (inch) | Inside Width (inch) | Inside Length (inch) | Bow Width (inch) | Length (inch) | Bolt Length (inch) | Width (inch) |
| GPBHBB05 | 0.05 | 3/16 | 1/4 | 1/2 | 3/16 | 3/8 | 7/8 | 5/8 | 1 13/32 | 1 5/32 | 1 1/32 |
| GPBHBB06 | 0.12 | 1/4 | 5/16 | 5/8 | 9/32 | 15/32 | 1 5/32 | 25/32 | 1 7/8 | 1 1/2 | 1 11/32 |
| GPBHBB08 | 0.22 | 5/16 | 3/8 | 25/32 | 11/32 | 17/32 | 1 1/4 | 7/8 | 2 7/32 | 1 27/32 | 1 9/16 |
| GPBHBB10 | 0.30 | 3/8 | 7/16 | 29/32 | 13/32 | 21/32 | 1 15/32 | 1 1/32 | 2 17/32 | 2 1/8 | 1 13/16 |
| GPBHBB11 | 0.42 | 7/16 | 1/2 | 31/32 | 7/16 | 3/4 | 1 11/16 | 1 5/32 | 2 7/8 | 2 11/32 | 2 |
| GPBHBB13 | 0.79 | 1/2 | 5/8 | 1 11/32 | 1/2 | 7/8 | 2 | 1 1/4 | 3 17/32 | 2 7/8 | 2 5/16 |
| GPBHBB16 | 1.38 | 5/8 | 3/4 | 1 9/16 | 5/8 | 1 1/16 | 2 17/32 | 1 11/16 | 4 11/32 | 3 1/2 | 2 15/16 |
| GPBHBB19 | 2.22 | 3/4 | 7/8 | 1 13/16 | 3/4 | 1 7/32 | 3 | 2 | 5 3/32 | 4 1/16 | 3 1/2 |
| GPBHBB22 | 3.31 | 7/8 | 1 | 2 1/16 | 7/8 | 1 13/32 | 3 9/32 | 2 9/32 | 5 21/32 | 4 11/16 | 4 1/32 |
| GPBHBB25 | 4.86 | 1 | 1 1/8 | 2 5/16 | 31/32 | 1 11/16 | 3 3/4 | 2 11/16 | 6 15/32 | 5 13/32 | 4 21/32 |
Frequently Asked Questions
Are there any recommendations for the inspection of shackles?
Inspection should take place at least every six months and even more frequently when the shackles are used in severe operating conditions.
Shackles should be inspected to ensure that:
✓ all markings are legible;
✓ the body and pin are both identifiable as being of the same size, type and make;
✓ the threads of the pin and the body are undamaged;
✓ for a safety bolt type shackle is used with the split cotter pin;
✓ the body and the pin are not distorted or unduly worn;
✓ the body and pin are free from nicks, gouges, cracks and corrosion;
✓ shackles are not heat treated as this may affect their Working Load Limit;
✓ the shackle is not modified, repaired or reshaped by welding, heating, machining or bending as this will affect the Working Load Limit;
Remove the shackle from service if:
✓ all markings are not clearly legible;
✓ body and pin can not be identified as being from same size, type and make;
✓ the threads of the pin and/or body are damaged;
✓ for a safety bolt type shackle the split cotter pin is missing;
✓ the body and/or pin is distorted or unduly worn, the maximum allowable wear is 10% of the original dimension;
✓ the body and/or pin is not free from nicks, gouges, cracks or corrosion;
✓ the shackle has been exposed to any heat treatment;
✓ the shackle is modified, repaired or reshaped by welding, heating, machining or bending;
✓ it is expected that before the next periodical inspection any of the inspection criteria above will not be passed;
Is it allowed to weld on Green Pin® lifting equipment?
We have redesigned the entire range of Green Pin® screw pin shackles, what's new?
Today, we machine a small chamber in the treaded eye of all our Green Pin® shackle bodies for screw pin shackles.
The thread is now fully covered by the shackle eye, leaving the bearing surface of your shackle pin entirely smooth. This is good news for your counter components like soft slings or steel wire ropes: they can no longer be damaged by any threading on the shackle pin.
This modification is fully incorporated in our product designs, meaning the products comply with all standards and certifications mentioned in our catalogue.
What do the abbreviations in Green Pin® product names stand for?
CL = Clevis
CP = Cotter Pin
D = D-Handle
E = Eye
EE = Eye-Eye
EJ = Eye-Jaw
EH = Eye-Hook
F = F-Handle
FN = Fixed Nut
FP = Flush Pin
GR10 = Grade 10
GR5 = Grade 5
GR8 = Grade 8
HH = Hook-Hook
HK = Hook
H-type = Horizontal
JJ = Jaw-Jaw
ROV = Remotely Operated Vehicle
S = Shackle
S/S = Stainless Steel
SC = Screw Collar, or Screw Pin
SCL = Swivel Clevis
SE = Swivel Eye
SQ = Square headed Screw Pin
U-type = Universal (Horizontal and Vertical)
V-type = Vertical































