CLGR® Turnbuckle Galvanized Eye and Eye U.S. Fed. Spec., also known as Galvanised Rigging Screws- Eye/Eye, Turnbuckle Wire Tensioner Strainer Eye to Eye, Open Body Rope Rigging Screw and Turnbuckle Straining Screw.
Constructed from hot dip galvanized steel, these turnbuckles provide exceptional resistance to rust and corrosion, making them ideal for outdoor and marine environments. The eye-and-eye design ensures secure attachment points, offering versatility.
The closed eye fittings on both ends ensure a solid and reliable connection, making them perfect for setups that require stability and minimal risk of detachment. This design is highly beneficial for scenarios such as architectural projects, securing cables in bridges and railings, and tensioning wire ropes in fencing and trellises. Always use turnbuckles for straight or in-line pulls to maintain safety standards.
Brand | CLGR® |
Technical Notes | Eye & eye Turnbuckle conform to US Federal Specification |
Material | Superior Carbon Steel (1045) |
Safety Factor | Proof tested to 2 x WLL and Minimum Break Force is 5 x WLL. |
Processing | Drop Forged + Machining + Quenched and Tempered |
Finish | Electric Galvanized / Hot Dipped Galvanized |
Thread Dia & Take Up(in) | 1/4×4, 5/16×4 1/2, 3/8×6, 1/2×6, 1/2×12, 5/8×6, 5/8×12, 3/4×6, 3/4×12, 3/4×18, 7/8×12, 7/8×18 |
Product | ODM/OEM |
Tips | Color Code: Customized according to customers’ requirements |

Part No. | Thread Dia & Take Up(in) | W.L.L. | U.W | Dimensions(in) | ||||||
J | K | M | N | R | S | X | ||||
lbs | lbs/pc | Open | Closed | Open | Closed | Closed | ||||
CR-TB-EE-US-01 | 1/4×4 | 500 | 0.29 | 11.94 | 7.94 | 12.38 | 8.38 | 0.81 | 0.34 | 1.76 |
CR-TB-EE-US-02 | 5/16×41/2 | 800 | 0.48 | 13.92 | 9.42 | 14.48 | 9.98 | 0.95 | 0.44 | 2.2 |
CR-TB-EE-US-03 | 3/8×6 | 1200 | 0.75 | 17.56 | 11.56 | 18.24 | 12.24 | 1.13 | 0.53 | 2.48 |
CR-TB-EE-US-04 | 1/2×6 | 2200 | 1.72 | 19.94 | 13.94 | 20.82 | 14.82 | 1.41 | 0.71 | 3.56 |
CR-TB-EE-US-05 | 1/2×12 | 2200 | 2.63 | 32.23 | 20.23 | 33.11 | 21.11 | 1.41 | 0.71 | 3.54 |
CR-TB-EE-US-06 | 5/8×6 | 3500 | 2.75 | 21.72 | 15.72 | 22.72 | 16.72 | 1.8 | 0.88 | 4.35 |
CR-TB-EE-US-07 | 5/8×12 | 3500 | 4.12 | 34.06 | 22.06 | 35.06 | 23.06 | 1.8 | 0.88 | 4.34 |
CR-TB-EE-US-08 | 3/4×6 | 5200 | 4.22 | 23.24 | 17.24 | 24.5 | 18.5 | 2.09 | 1 | 5.12 |
CR-TB-EE-US-09 | 3/4×12 | 5200 | 6.12 | 35.64 | 23.64 | 36.9 | 24.9 | 2.09 | 1 | 5.09 |
CR-TB-EE-US-10 | 3/4×18 | 5200 | 7.83 | 47.64 | 29.64 | 48.9 | 30.9 | 2.09 | 1 | 5.12 |
CR-TB-EE-US-11 | 7/8×12 | 7200 | 8.83 | 36.7 | 24.7 | 38.2 | 26.2 | 2.38 | 1.25 | 5.79 |
CR-TB-EE-US-12 | 7/8×18 | 7200 | 11.5 | 49.17 | 31.17 | 50.67 | 32.67 | 2.38 | 1.25 | 5.79 |