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Meets performance requirements of federal specification: RR-C-271 Type IV A, Grade B. CM® Alloy Shackles are designed with a 5:1 design factor and have a strength rating approximately 50 % higher than a comparable-sized carbon shackle and about 25 % stronger than super strong shackles. Anchor shackles can be side loaded or used for multiple connections.

Made in the USA.

Grade B alloy shackles are typically used on wire rope loops for lifting or towing.

CM® Alloy Anchor Shackles - Screw Pin
Unit of Measure
Items CM® Alloy Anchor Shackles - Screw Pin
M648A
3/8 Inch (in) Size D Self-Colored CM® Alloy Anchor Shackle with Screw Pin
CM® Alloy Anchor Shackles - Bolt, Nut & Cotter
M848A
3/8 Inch (in) Size D Self-Colored CM® Alloy Anchor Shackle with Bolt, Nut & Cotter
CM® Alloy Anchor Shackles - Screw Pin
M648AG
3/8 Inch (in) Size D Galvanized CM® Alloy Anchor Shackle with Screw Pin
CM® Alloy Anchor Shackles - Bolt, Nut & Cotter
M848AG
3/8 Inch (in) Size D Galvanized CM® Alloy Anchor Shackle with Bolt, Nut & Cotter
CM® Alloy Anchor Shackles - Screw Pin
M648AP
3/8 Inch (in) Size D Orange Powder Coated CM® Alloy Anchor Shackle with Screw Pin
Description N/A

Meets performance requirements of federal specification: RR-C-271 Type IV A, Grade B. CM® Alloy Shackles are designed with a 5:1 design factor and have a strength rating approximately 50 % higher than a comparable-sized carbon shackle and about 25 % stronger than super strong shackles. Anchor shackles can be side loaded or used for multiple connections.

Made in the USA.

Grade B alloy shackles are typically used on wire rope loops for lifting or towing.

Size D N/A 3/8 "
WLL N/A 2 ton
Standard Package N/A 50
Weight N/A 0.30 lb
Style N/A Screw Pin N/A Bolt, Nut & Cotter N/A Screw Pin N/A Bolt, Nut & Cotter N/A Screw Pin
Finish N/A Self-Colored N/A Self-Colored N/A Galvanized N/A Galvanized N/A Orange Powder Coated
Dimension P N/A 0.44 "
E N/A 0.52 "
Dimension W N/A 0.66 "
Dimension R N/A 1.00 "
Dimension L N/A 1.40 "
Minimum Dimension B N/A 1.00 "
Benefits and Features N/A
  • Made of Special Bar Quality (SBQ) steel having fine grain, reduced sulfur and phosphorus.
  • Shackles show major deformation before failure.
  • Working load limit and traceability codes shown as permanent markings on body.
  • All shackles have alloy quenched and tempered pins.
  • Available in sizes 3/8" to 3".
  • Available finishes include powder coated, galvanized or self-colored.
  • Shackles meet dimensional and performance requirements of RR-C-271.
  • Special testing and certification is available upon request at the time of the order.
  • CM® Smart ID RFID technology is available as an option on screw pin anchor shackles sizes 1/2" to 1-3/4" and bolt, nut & cotter shackles sizes 3/4" to 1-3/4".
Note N/A To order products with CM® Smart ID RFID technology add "-RF" after the product number. RFID-equipped rigging products are not eligible for our In-Stock Guarantee.
Material N/A Alloy