U.S. Federal Specification Turnbuckles (FF-T791B)
- Size：From 1/4″X4″ to 2-3/4″X24″
- Drop forged. Carbon steel.
- Proof load is 2.5 times the working load limit. Ultimate Load is 5 times working load limit
- Surface Finish is usually Electric galvanised or hot dip galvanised
- Marking:SIZE. R. L. or as per customers’ request.
- Package：PP Bag / Carton. Plywood/Steel pallet
- Size：From 1/4″X4″ to 2-3/4″X24″
- Drop forged. Carbon steel.
- Proof load is 2.5 times the working load limit. Ultimate Load is 5 times working load limit
- Surface Finish is usually Electric galvanised or hot dip galvanised
- Marking:SIZE. R. L. or as per customers’ request.
- Package：PP Bag / Carton. Plywood/Steel pallet
Product parameter
Size (Diameter x
Take-Up)
Overall Length with Ends in Closed Position
Approx. Weight Each (lbs)
Working Load Limit (lbs)
Eyes and/or Hooks
Jaw& Eye
Jaw& Jaw
Stub End
Bodies Only
Hook&Hook / Hook&Eye
Eye&Eye Jaw&Eye Jaw&Jaw Stub End
1/4″×4″
8-1/4
0.3
0.3
0.4
0.29
0.17
400
500
5/16″×4-1/2″
9-9/16
0.5
0.35
0.58
0.46
0.25
700
800
3/8″×6″
11-7/8
0.75
0.82
0.93
0.75
0.3
1000
1200
1/2″×6″
13-5/16
1.50
1.62
1.68
1.36
0.55
1500
2200
1/2″×9″
16-5/16
1.75
1.82
1.85
1.69
0.74
1500
2200
1/2″×l2″
19-5/16
2.18
2.19
2.20
2.0
0.93
1500
2200
5/8″×6″
15-1/2
2.63
2.59
2.82
2.15
0.91
2250
3500
5/8″×9″
18-1/2
3.00
3.01
3.25
2.7
1.2
2250
3500
5/8″×12″
21-1/2
3.25
3.50
3.75
3.22
1.5
2250
3500
3/4″×6″
17
3.75
4.25
4.68
3.25
1.3
3000
5200
3/4″×9″
20
4.50
5.00
5.38
4.0
1.7
3000
5200
3/4″×12″
23
5.75
5.75
6.12
4.65
2.12
3000
5200
3/4″×18″
29
7.00
7.25
7.25
6.12
2.93
3000
5200
7/8″×6″
18
–
–
–
4.75
2.0
4000
7200
7/8″×12″
24-5/8
8.38
8.88
9.36
6.67
3.0
4000
7200
7/8″×l8″
30-5/8
10.25
10.60
11.44
8.75
4.12
4000
7200
1″×6″
20-5/8
–
–
–
6.41
2.5
5000
10000
1″×12″
26-5/8
11.25
12
12.88
8.9
3.86
5000
10000
1″×18″
32-5/8
14
14.75
16.1
11.7
5.5
5000
10000
1″×24″
38-5/8
17
17.75
18.6
14.3
7
5000
10000
1-1/4″×6″
20
–
–
–
10.4
4
6500
15200
1-1/4″×12″
29-7/8
19
21.2
23.6
14.2
5.93
6500
15200
1-1/4″×18″
35-7/8
24.1
26
26.6
18
8
6500
15200
1-1/4″×24″
41-7/8
25
28.7
31.2
21.8
10
6500
15200
1-1/2″×6″
22-1/2
–
–
–
15.4
5.8
7500
21400
1-1/2″×12″
32-3/8
27
31.1
35.5
20.5
8.4
7500
21400
1-1/2″×18″
38-3/8
31.2
36.4
40.7
26.2
11.5
7500
21400
1-1/2″×24″
44-3/8
38.2
44.2
47.6
31.4
14.1
7500
21400
1-3/4″×6″
–
–
–
–
22.7
8.75
12500
28000
1-3/4″×18″
41-3/4
45.0
48.8
52.4
–
–
12500
28000
1-3/4″×24″
47-3/4
58
60.
64
43.9
19.5
12500
28000
2″×6″
–
–
–
–
31.5
12.5
16500
37000
2″×24″
51-3/4
90
102.
115
60.3
27.5
16500
37000
2-1/2″×6″
–
–
–
–
60.8
27.0
27000
60000
2-1/2″×24″
58-1/2
183
180
200
110
54.0
27000
60000
2-3/4″×24″
61-1/2
180
214
248
–
54.0
34000
75000
Product parameter
| Size (Diameter x Take-Up) |
Overall Length with Ends in Closed Position | Approx. Weight Each (lbs) | Working Load Limit (lbs) | |||||
| Eyes and/or Hooks | Jaw& Eye | Jaw& Jaw | Stub End | Bodies Only | Hook&Hook / Hook&Eye | Eye&Eye Jaw&Eye Jaw&Jaw Stub End | ||
| 1/4″×4″ | 8-1/4 | 0.3 | 0.3 | 0.4 | 0.29 | 0.17 | 400 | 500 |
| 5/16″×4-1/2″ | 9-9/16 | 0.5 | 0.35 | 0.58 | 0.46 | 0.25 | 700 | 800 |
| 3/8″×6″ | 11-7/8 | 0.75 | 0.82 | 0.93 | 0.75 | 0.3 | 1000 | 1200 |
| 1/2″×6″ | 13-5/16 | 1.50 | 1.62 | 1.68 | 1.36 | 0.55 | 1500 | 2200 |
| 1/2″×9″ | 16-5/16 | 1.75 | 1.82 | 1.85 | 1.69 | 0.74 | 1500 | 2200 |
| 1/2″×l2″ | 19-5/16 | 2.18 | 2.19 | 2.20 | 2.0 | 0.93 | 1500 | 2200 |
| 5/8″×6″ | 15-1/2 | 2.63 | 2.59 | 2.82 | 2.15 | 0.91 | 2250 | 3500 |
| 5/8″×9″ | 18-1/2 | 3.00 | 3.01 | 3.25 | 2.7 | 1.2 | 2250 | 3500 |
| 5/8″×12″ | 21-1/2 | 3.25 | 3.50 | 3.75 | 3.22 | 1.5 | 2250 | 3500 |
| 3/4″×6″ | 17 | 3.75 | 4.25 | 4.68 | 3.25 | 1.3 | 3000 | 5200 |
| 3/4″×9″ | 20 | 4.50 | 5.00 | 5.38 | 4.0 | 1.7 | 3000 | 5200 |
| 3/4″×12″ | 23 | 5.75 | 5.75 | 6.12 | 4.65 | 2.12 | 3000 | 5200 |
| 3/4″×18″ | 29 | 7.00 | 7.25 | 7.25 | 6.12 | 2.93 | 3000 | 5200 |
| 7/8″×6″ | 18 | – | – | – | 4.75 | 2.0 | 4000 | 7200 |
| 7/8″×12″ | 24-5/8 | 8.38 | 8.88 | 9.36 | 6.67 | 3.0 | 4000 | 7200 |
| 7/8″×l8″ | 30-5/8 | 10.25 | 10.60 | 11.44 | 8.75 | 4.12 | 4000 | 7200 |
| 1″×6″ | 20-5/8 | – | – | – | 6.41 | 2.5 | 5000 | 10000 |
| 1″×12″ | 26-5/8 | 11.25 | 12 | 12.88 | 8.9 | 3.86 | 5000 | 10000 |
| 1″×18″ | 32-5/8 | 14 | 14.75 | 16.1 | 11.7 | 5.5 | 5000 | 10000 |
| 1″×24″ | 38-5/8 | 17 | 17.75 | 18.6 | 14.3 | 7 | 5000 | 10000 |
| 1-1/4″×6″ | 20 | – | – | – | 10.4 | 4 | 6500 | 15200 |
| 1-1/4″×12″ | 29-7/8 | 19 | 21.2 | 23.6 | 14.2 | 5.93 | 6500 | 15200 |
| 1-1/4″×18″ | 35-7/8 | 24.1 | 26 | 26.6 | 18 | 8 | 6500 | 15200 |
| 1-1/4″×24″ | 41-7/8 | 25 | 28.7 | 31.2 | 21.8 | 10 | 6500 | 15200 |
| 1-1/2″×6″ | 22-1/2 | – | – | – | 15.4 | 5.8 | 7500 | 21400 |
| 1-1/2″×12″ | 32-3/8 | 27 | 31.1 | 35.5 | 20.5 | 8.4 | 7500 | 21400 |
| 1-1/2″×18″ | 38-3/8 | 31.2 | 36.4 | 40.7 | 26.2 | 11.5 | 7500 | 21400 |
| 1-1/2″×24″ | 44-3/8 | 38.2 | 44.2 | 47.6 | 31.4 | 14.1 | 7500 | 21400 |
| 1-3/4″×6″ | – | – | – | – | 22.7 | 8.75 | 12500 | 28000 |
| 1-3/4″×18″ | 41-3/4 | 45.0 | 48.8 | 52.4 | – | – | 12500 | 28000 |
| 1-3/4″×24″ | 47-3/4 | 58 | 60. | 64 | 43.9 | 19.5 | 12500 | 28000 |
| 2″×6″ | – | – | – | – | 31.5 | 12.5 | 16500 | 37000 |
| 2″×24″ | 51-3/4 | 90 | 102. | 115 | 60.3 | 27.5 | 16500 | 37000 |
| 2-1/2″×6″ | – | – | – | – | 60.8 | 27.0 | 27000 | 60000 |
| 2-1/2″×24″ | 58-1/2 | 183 | 180 | 200 | 110 | 54.0 | 27000 | 60000 |
| 2-3/4″×24″ | 61-1/2 | 180 | 214 | 248 | – | 54.0 | 34000 | 75000 |
