CM Big Orange drop forged wire rope clips

• Precision manufactured and galvanized to meet Federal Specifications FF-C-450, Type 1, Class 1, on all sizes 1/4″ and larger. U-bolts and nuts electro-galvanized on 1/8″ and 3/16″ sizes, hot dip galvanized all other sizes. All bases hot dip galvanized.
• Drop forged base.
• Available in popular sizes.
• 1/8″-5/8″ sizes packed unassembled, two pieces per poly bag and in factory packs.
• 3/4″ and larger sizes shipped assembled in factory packs.

Size
In.
Prod
Code
UPC
43927-
Dimensions Inches Min #
Clips
Rope
Turn-
Back
Torque
(ft./lbs.)
Weight
per 100 Lbs
Factory Pack
A B C D E F G H
1/8 M244 42487 1/2-24 23/32 7/16 15/32 13/32 3/8 13/16 15/16 2 3 1/4 4 1/2 5 50
3/16 M245 42491 1/4-20 31/32 9/16 19/32 1/2 1/2 15/16 15/32 2 3 3/4 7 1/2 9 50
1/4 M246 42495 5/16-18 11/32 1/2 3/4 21/32 9/16 13/16 17/16 2 4 3/4 15 18 50
5/16 M247 42499 3/8-16 13/8 3/4 7/8 23/32 11/16 15/16 11/16 2 5 1/4 30 30 50
3/8 M248 42504 7/16-14 1 1/2 3/4 1 29/32 3/4 1 5/8 1 15/16 2 6 1/2 45 42 50
7/16 M249 42508 1/2-13 1 7/8 1 1 3/16 1 1/16 7/8 1 25/32 2 5/16 2 7 65 70 50
1/2 M250 42512 1/2-13 1 7/8 1 1 3/16 1 1/8 7/8 1 29/32 2 5/16 3 11 1/2 65 75 30
9/16 M296 42514 9/16-12 2 3/8 1 1/4 15/16 1 1/4 15/16 1 31/32 2 1/2 3 12 95 100 30
5/8 M251 42517 9/16-12 2 3/8 1 1/4 1 5/16 1 11/32 15/16 2 2 1/2 3 12 95 100 30
3/4 M252 42521 5/8-11 2 3/4 1 7/16 1 1/2 1 7/16 1 1/16 2 11/32 2 13/16 4 18 130 150 30
7/8 M253 42525 3/4-10 3 1/8 1 5/8 1 3/4 1 19/32 1 1/4 2 7/16 3 5/32 4 20 225 240 10
1 M254 42529 3/4-10 3 1/2 1 13/16 1 7/8 1 25/32 1 1/4 2 5/8 3 15/32 5 26 225 250 10
1 1/8 M255 42533 3/4-10 3 7/8 2 2 1 29/32 1 1/4 2 13/16 3 19/32 6 34 225 310 10
1 1/4 M256 42537 7/8-9 4 1/4 2 1/8 2 5/16 2 3/16 1 7/16 3 1/8 4 1/8 7 37 360 460 15
13/8 M257 42541 7/8-9 4 5/8 2 5/16 2 3/8 2 1/4 1 7/16 3 1/8 4 1/4 7 44 360 520 15
11/2 M258 42545 7/8-9 4 15/16 2 3/8 2 19/32 2 1/2 1 7/16 3 13/32 4 7/16 8 48 360 590 15
†The tightening torque values shown are based upon the threads being clean, dry and free of lubrication.

Proper use of CM Big Orange wire rope clips

CM Big Orange wire rope clips will pro­­vide maximum holding strength when used according to the specifi­cations listed and following these instructions:

  1. Refer to chart above in following these instructions. Turn back specified amount of rope from thimble
    or loop. Apply first clip one base width from dead end of rope. Apply U-bolt over dead end of wire rope—live end rests in saddle. Tighten nuts evenly, alternate from one nut to the other until reaching the recommended torque.
  2. When two clips are required, apply the second clip as near the loop or thimble as possible. Tighten nuts evenly, alternating until reaching the recommended torque. When more than two clips are required, apply the second clip as near the loop or thimble as possible, turn nuts on second clips firmly, but do not tighten. Proceed to Step 3.
  3. When three or more clips are re­quired, space additional clips equally between the first two—take up rope slack—tighten nuts on each U-bolt evenly, alternating from one nut to the other until reaching the recommended torque.
  4. Apply an initial load equal to loads expected in use. Inspect for proper orientation and spacing of clips and retighten the nuts to the recommended torque.

If a pulley (sheave) is used for rope turn back, add one additional clip.

The number of clips shown is based upon using RRL or RLL wire rope, 6 x 19 or 6 x 37 Class, FC or IWRC, IPS or XIP. If Seale construction or similar outer wire type construction in the 6 x 19 Class is to be used for sizes 1″ and larger, add one additional clip.

The number of clips shown also applies to rotation-resistant RRL wire rope, 8 x 19 Class, IP, XIP, sizes 11/2″ and smaller, and to rotation-resistant RRL wire rope, 19 x 7 Class, IPS, XIP, sizes 11/2″ and smaller.

For other classes of wire rope, additional clips may be necessary. Length of rope turn back should be increased when more clips are used.

Efficiency ratings for wire rope end terminations are based upon the breaking strength of wire rope. The efficiency rating of a properly prepared loop or thimble eye termination for clip sizes 1/8″ through 7/8″ is 80% and for sizes 1″ through 11/2″ is 90%.

In accordance with good rigging and maintenance practices, the wire rope end termination should be inspected periodically for wear, abuse and general adequacy.

For More information, please visit
www.cmworks.com

*WARNING
Improper installation and use of wire rope clips can result in injury. To avoid injury install and use only as instructed herein.


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