According to A.S.T.M. F 1145. Hot galvanized, drop forged.
Bodies normalized: end fittings quenched and tempered.

Size
(Diameter x Take-Up)		 Approx. Weight each in Pounds Working Load Limit in Pounds Average Overall
Length with Ends
in Closed Position
Eyes and/or Hooks Jaw & Eye Jaw & Jaw Hook & Hook Hook & Eye

Eye & Eye Jaw & Eye
Jaw & Jaw
1/4″ x 4″ .3 .3 .4 400 500 8.25
5/16″ x 4.1/2″ .5 .53 .58 700 800 9.56
3/8″ x 6″ .75 .82 .93 1,000 1,200 11.88
1/2″ x 6″ 1.50 1.62 1.68 1,500 2,200 13.31
1/2″ x 9″ 1.75 1.82 1.85 1,500 2,200 16.31
1/2″ x 12″ 2.18 2.19 2.20 1,500 2,200 19.31
5/8″ x 6″ 2.63 2.69 2.82 2,250 3,500 15.50
5/8″ x 9″ 3.00 3.01 3.25 2,250 3,500 18.50
5/8″ x 12″ 3.25 3.50 3.75 2,250 3,500 21.50
3/4″ x 6″ 3.75 4.25 4.68 3,000 5,200 17.00
3/4″ x 9″ 4.50 5.00 5.38 3,000 5,200 20.00
3/4″ x 12″ 5.75 5.75 6.12 3,000 5,200 23.00
3/4″ x 18″ 7.00 7.25 7.75 3,000 5,200 29.00
7/8″ x 12″ 8.38 8.88 9.38 4,000 7,200 24.63
7/8″ x 18″ 10.25 10.60 11.44 4,000 7,200 30.63
1″ x 6″ 10.75 11.10 11.80 5,000 10,000 20.63
1″ x 12″ 11.25 12 12.88 5,000 10,000 26.63
1″ x 18″ 14 14.75 16.1 5,000 10,000 32.63
1″ x 24″ 17 17.75 18.6 5,000 10,000 38.63
1 1/4″ x 12″ 19 21.2 23.6 6,500 15,200 29.88
1 1/4″ x 18″ 24.1 26 26.6 6,500 15,200 35.88
1 1/4″ x24″ 25 28.7 31.2 6,500 15,200 41.88
1 1/2″ x 12″ 27 31.1 35.5 7,500 21,400 32.38
1 1/2″ x 18″ 31.2 36.4 40.7 7,500 21,400 38.38
1 1/2″ x 24″ 38.2 44.2 47.6 7,500 21,400 44.38
1 3/4″ x 18″ 53 57.5 62 — 28,000 41.38
1 3/4″ x 24″ 58 60 64 — 28,000 47.75
2″ x 24″ 90 102 115 — 37,000 51.75
2 1/2″ x 24″ 163 180 200 — 60,000 58.50
2 3/4″ x 24″ 180 214 248 — 75,000 61.50
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