Crosby® Swivel Hoist Rings
UNC Threads
Available with metric threads.
Also available with optional bolt lengths.
Top washer has the following features:
- The Working Load Limit and Recommended Torque value are permanently stamped into each washer.
- Washer is color coded for easy identification Red – UNC thread
Bolt Size Identification
The size of the bolt will be stated as in the following example.
Illustration shows meaning of each dimension given.
| Mfg. # | CSI Ref. # | Torque (ft. lbs.) |
Est. Weight Each (lbs.) |
Working Load Limit* (lbs.) |
|---|---|---|---|---|
| 1016887† | CS-07-1389 | 7 | 0.43 | 800 |
| 1016898† | CS-07-1390 | 12 | 0.43 | 1,000 |
| 1016909 | CS-07-1391 | 28 | 2.49 | 2,500 |
| 1016912† | CS-07-1392 | 28 | 2.52 | 2,500 |
| 1016920 | CS-07-1393 | 60 | 2.55 | 4,000 |
| 1016924† | CS-07-1394 | 60 | 2.7 | 4,000 |
| 1016931 | CS-07-1395 | 100 | 2.65 | 5,000 |
| 1016935† | CS-07-1396 | 100 | 3 | 5,000 |
| 1016942 | CS-07-1397 | 100 | 7 | 7,000 |
| 1016946† | CS-07-1398 | 100 | 7 | 7,000 |
| 1016953 | CS-07-1399 | 160 | 7 | 8,000 |
| 1016957† | CS-07-1400 | 160 | 7 | 8,000 |
| 1016964 | CS-07-1401 | 230 | 7.5 | 10,000 |
| 1016969† | CS-07-1402 | 230 | 7.5 | 10,000 |
| 1016975 | CS-07-1403 | 470 | 14.79 | 15,000 |
| 1016986 | CS-07-1404 | 800 | 33 | 24,000 |
| 1016997 | CS-07-1405 | 1100 | 36 | 30,000 |
* Ultimate load is 5 times the Working Load Limit.
† Long bolts are designed to be used with soft metal (i.e., aluminum) work pieces. While the long bolts may also be used with ferrous metal (i.e.,steel & iron) work pieces, short bolts are designed for ferrous work pieces only.
†† Bolt specification is a Grade 8 Alloy socket head cap screw to ASTM A 574. All threads listed are UNC – 3A.
UNC Threads Specifications
| Mfg. # | Dimensions (in.) | |||||||
|---|---|---|---|---|---|---|---|---|
| Bolt Size †† A | Effective Thread Projection Length B |
C | D | Radius E |
Dia. F |
G | H | |
| 1016887† | 5/16–18 x 1.5 | 0.59 | 2.69 | 1 | 0.46 | 0.38 | 1.69 | 1.11 |
| 1016898† | 3/8–16 x 1.5 | 0.59 | 2.69 | 1 | 0.46 | 0.38 | 1.69 | 1.09 |
| 1016909 | 1/2–13 x 2 | 0.71 | 4.82 | 2 | 0.88 | 0.75 | 3.3 | 2.29 |
| 1016912† | 1/2–13 x 2.5 | 1.21 | 4.82 | 2 | 0.88 | 0.75 | 3.3 | 2.29 |
| 1016920 | 5/8–11 x 2 | 0.71 | 4.82 | 2 | 0.88 | 0.75 | 3.3 | 2.21 |
| 1016924† | 5/8–11 x 2.75 | 1.46 | 4.82 | 2 | 0.88 | 0.75 | 3.3 | 2.21 |
| 1016931 | 3/4–10 x 2.25 | 0.96 | 4.82 | 2 | 0.88 | 0.75 | 3.3 | 2.05 |
| 1016935† | 3/4–10 x 2.75 | 1.46 | 4.82 | 2 | 0.88 | 0.75 | 3.3 | 2.05 |
| 1016942 | 3/4–10 x 2.75 | 0.9 | 6.55 | 3 | 1.37 | 1 | 4.73 | 2.98 |
| 1016946† | 3/4–10 x 3.5 | 1.65 | 6.55 | 3 | 1.37 | 1 | 4.73 | 2.98 |
| 1016953 | 7/8–9 x 2.75 | 0.9 | 6.55 | 3 | 1.37 | 1 | 4.73 | 2.85 |
| 1016957† | 7/8–9 x 3.5 | 1.65 | 6.55 | 3 | 1.37 | 1 | 4.73 | 2.85 |
| 1016964 | 1–8 x 3 | 1.15 | 6.55 | 3 | 1.37 | 1 | 4.73 | 2.73 |
| 1016969† | 1–8 x 4 | 2.15 | 6.55 | 3 | 1.37 | 1 | 4.73 | 2.73 |
| 1016975 | 1-1/4–7 x 4.5 | 2.22 | 8.7 | 3.75 | 1.75 | 1.25 | 6 | 3.92 |
| 1016986 | 1-1/2–6 x 6.5 | 2.98 | 12.39 | 4.75 | 2.25 | 1.75 | 8 | 5.64 |
| 1016997 | 2–4-1/2 x 6.5 | 2.98 | 12.39 | 4.75 | 2.25 | 1.75 | 8 | 5.14 |
* Ultimate load is 5 times the Working Load Limit.
† Long bolts are designed to be used with soft metal (i.e., aluminum) work pieces. While the long bolts may also be used with ferrous metal (i.e.,steel & iron) work pieces, short bolts are designed for ferrous work pieces only.
†† Bolt specification is a Grade 8 Alloy socket head cap screw to ASTM A 574. All threads listed are UNC – 3A.