Qingdao Jinmaocheng Import&Export Co.Ltd has worked on the industry for over 15 years, Our annual sales volume has reached ＄500 millions, and annual purchase volume reaches ＄300 millions.We have been keeping good relations with more than 50 metal factories,We supply rigging hardware products, such as wire rope, chain, shackle, turnbuckle,and etc…
- Shackles[12]
- Turnbuckles[12]
- Hooks[34]
- Chains[11]
- Wire ropes[9]
- Thimbles[9]
- Aluminium Ferrules [6]
- Clips[9]
- Blocks[33]
- Anchors[10]
- Links[16]
- Swivels[3]
- Load binders[2]
- Snap Hooks[9]
- Quick Links[4]
- Bolts and Nuts[11]
- Lifting Slings[3]
- Lashing[6]
- Ratchet Buckles[9]
- Flat hooks[6]
- Wire Hooks[6]
- Winches[6]
- SS Products[30]
- Anchor Chain[6]
- Cast Products[0]
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The supplier of shackles
We produce all kinds of shackles, such as US type, European type, JIS type, BS3032 type, trawling shackles and so on.
Requirements and guidelines for shackles and rings are as follows:
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Shackle specifications are defined by the following documents, depending on the shackle size:
- For shackles 3/16 to 2-3/4 inches, the specifications are derived from Federal Specification RR-C-271, Chains and Attachments, Welded and Weldless.
- For shackles 1-1/2 to 4 inches, the specifications are derived from MIL-S-24214, Shackles, Steel, General Purpose and High Strength.
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For shackles 4-1/2 to 8-1/2 inches, ASTM A148M, Standard Specification for Steel Castings, High Strength, For Structural Purposes, should be used.
Note: For the overlaps in size, with RR-C-271 and MIL-S-24214, either specification may be used; however, RR-C-271 is most commonly used. Specification RR-C-271, Revision D, was issued in September 1990. Catalogs and manufacturers' literature will list the federal specification number as RR-C-271(rev.).
- Shackles are manufactured in two configurations for use in rigging: anchor shackle and chain shackle. Both are available with screw pins, round pins, or safety bolts (Figure 1).
- Shackles are sized by the diameter of steel in the bow section rather than the pin size.
- Shackles manufactured in accordance with RR-C-271 and MIL-S-24214 have a minimum design factor of 5. Shackles manufactured to the requirements of ASTM A148M have a minimum design factor of 4. Rings manufactured to the requirements of RR-C-271 have a minimum design factor of 6.
