U.S. FEDERAL SPECIFICATION TURNBUCKLE

End liftings are quenched and tempered

Hot-dip galvanized

U.S. TYPE TURNBUCKLES HEAVY DUTY

End liftings are quenched and tempered

Hot-dip galvanized steel

Turnbuckle recommended for straight or in line pull only

Proof load tested 2 times the W.L.L

Minimum breaking load is 5 times the W.L.L

Size (in) Diameter x Take-up Average Overall Length (in) with ends in closed position Working Load Limit (lb) Approx Weight (lb/pc)
Eye & Eye Hook & Hook Eye &/or Hook Eye & Jaw Jaw & Jaw
Eye & Jaw Eye & Hook
Jaw & Jaw
¼ x 4 8 ¼ 500 400 0.30 0.30
x 4½ 9 800 700 0.50 0.35 0.58
⅜ x 6 11 ⅞ 1200 1000 0.75 0.82
½ x 6 13 2200 1500 1.50 1.62 1.68
½ x 9 16 2200 1500 1.75 1.82 1.85
½ x 12 19 2200 1500 2.18 2.19 2.20
⅝ x 6 15 ½ 3500 2250 2.63 2.59 2.82
⅝ x 9 18 ½ 3500 2250 3.00 3.01 3.25
⅝ x 12 21 ½ 3500 2250 3.25 3.50 3.75
¾ x 6 17 5200 3000 3.75 4.25 4.68
¾ x 9 20 5200 3000 4.50 5.00 5.38
¾ x 12 23 5200 3000 5.75 5.75 6.12
¾ x 18 29 5200 3000 7.00 7.25 7.25
⅞ x 6 18 7200 4000 0.93
⅞ x 12 24 ⅝ 7200 4000 8.38 8.88 9.36
⅞ x 18 30 ⅝ 7200 4000 10.25 10.6 11.44
1 x 6 20 ⅝ 10000 5000
1 x 12 26 ⅝ 10000 5000 11.25 12 12.88
1 x 18 32 ⅝ 10000 5000 14 14.75 16.1
1 x 24 38 ⅝ 10000 5000 17 17.75 18.6
1 ¼ x 6 20 15200 6500
1 ¼ x 12 29 ⅞ 15200 6500 19 21.2 23.6
1 ¼ x 18 35 ⅞ 15200 6500 24.1 26 26.6
1 ¼ x 24 41 ⅞ 15200 6500 25 28.7 31.2
1 ½ x 6 22 ½ 21400 7500
1 ½ x 12 32 ⅜ 21400 7500 27 31.1 35.5
1 ½ x 18 38 ⅜ 21400 7500 31.2 36.4 40.7
1 ½ x 24 44 ⅜ 21400 7500 38.2 44.2 47.6
1 ¾ x 6 28000
1 ¾ x 18 41 ¾ 28000 45 48.8 52.4
1 ¾ x 24 47 ¾ 28000 58 60 64
2 x 6 37000
2 x 24 51 ¾ 37000 90 102 115
2 ½ x 6 60000
2 ½ x 24 58 ½ 60000 183 180 200
2 ¾ x 24 61 ½ 75000 180 214 248

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