Crosby G2140 3.33t Alloy Anchor Bolt Type Shackle, 1/2": Quenched & Tempered. Alloy bows, alloy bolts. Forged alloy steel 2 through 250 metric tons. Cast alloy steel 400 metric tons. Meets performance requirements of Grade 8 shackles. Working Load Limit is permanently shown on every shackle. 30, 40, 55, and 85 metric ton shackle bows are available galvanized (G) or self colored (S) with bolts that are galvanized and painted red. Size 3/8 inch is mechanically galvanized. 120, 150, 175 metric ton shackle bows are hot-dip galvanized; bolts are Dimetcoted and painted red. 200, 250, 300, 400 metric ton shackle bows are Dimetcoted; bolts are Dimetcoted and painted red. Approved for use at -40 C (-40 F) to 204 C (400 F). Shackles are Quenched & Tempered and can meet DNV impact requirements of 42 Joules (31 ft-lb) at -20 C (-4 F). Crosby COLD TUFF shackles that meet the additional requirements of DNV rules for certification of lifting applications - loose gear are available. Shackles 200 metric tons and larger are provided as follows: Serialized bolt and bow Material certification (chemical) Magnetic particle inspected. Certification must be requested at time of order. Meets or exceeds all requirements of ASME B30.26 including identification, ductility, design factor, proof load and temperature requirements. 2140 shackles meet other critical performance requirements including impact properties and material traceability, not addressed by ASME B30.26. Type Approval certification in accordance with ABS 2016 Steel Vessel Rules and 2016 ABS Guide for Certification of Lifting Appliances. Certificates are available when requested at time of order and may include additional charges. G-2140 meets the performance requirements of Federal Specification RR-C-271H, Type IVA, Grade B, Class 3, except for those provisions required of the contractor. For additional information, see Warnings & Applications. Look for the Red Pin... the mark of genuine Crosby quality.