Turnbuckles are provided as components of tie rod assemblies that Portland Bolt manufactures and are often used in conjunction with clevises. Turnbuckles possess right hand internal threads on one end and left hand internal threads on the other. By rotating the turnbuckle, the tie rod assembly is drawn tight.

Our new tie rod calculator will quickly determine rod lengths when given overall pin-to-pin dimensions of a tie rod assembly.

Availability

Turnbuckles are not a stocked item but are available within a day or two. Turnbuckles are provided in both plain finished and hot dip galvanized medium carbon steel as well as stainless steel.

Dimensions

Click table to show drawingTurnbuckle Drawing
Dia. (D), in. Standard Turnbuckles Weight in Pounds Safe Working Load, Kips
Dimensions, Inches Length, Inches
A N C E G 6 9 12 18 24 36 ASD LRFD
3/8 6 9/16 7-1/8 9/16 1-1/32 .42 2.00 3.00
1/2 6 25/32 7-9/16 11/16 1-5/16 .65 .90 1.20 3.67 5.50
5/8 6 15/16 7-7/8 13/16 1-1/2 .98 1.35 1.58 2.43 5.83 8.75
3/4 6 1-1/16 8-1/8 15/16 1-23/32 1.45 1.84 2.35 3.06 4.25 8.67 13.0
7/8 6 1-5/16 8-5/8 1-3/32 1-7/8 1.85 3.02 4.20 5.43 12.0 18.0
1 6 1-7/16 8-7/8 1-9/32 2-1/32 2.60 4.02 4.40 6.85 10.0 15.5 23.3
1-1/8 6 1-9/16 9-1/8 1-13/32 2-9/32 4.06 4.70 6.10 19.3 29.0
1-1/4 6 1-9/16 9-1/8 1-9/16 2-17/32 4.00 6.49 7.13 11.30 13.1 25.3 38.0
1-3/8 6 1-13/16 9-5/8 1-11/16 2-3/4 6.15 29.0 43.5
1-1/2 6 1-7/8 9-3/4 1-27/32 3-1/32 6.15 9.70 9.13 16.80 19.4 35.0 52.5
1-5/8 6 2-1/2 11 1-31/32 3-9/32 9.80 40.9 61.3
1-3/4 6 2-1/2 11 2-1/8 3-9/16 9.80 15.3 16.0 19.5 47.2 70.8
1-7/8 6 2-13/16 11-5/8 2-3/8 4 14.0 15.3 62.0 93.0
2 6 2-13/16 11-5/8 2-3/8 4 14.0 15.3 27.5 62.0 93.0
2-1/4 6 3-5/16 12-5/8 2-11/16 4-5/8 19.6 30.9 43.5 80.0 120
2-1/2 6 3-3/4 13-1/2 3 5 23.3 30.9 42.4 100 150
2-3/4 6 4-3/16 14-3/8 3-1/4 5-5/8 31.5 54.0 125 188
3 6 4-5/16 14-5/8 3-5/8 6-1/8 39.5 161 242
3-1/4 6 5-7/16 16-7/8 3-7/8 6-3/4 60.5 79.5 203 305
3-1/2 6 5-7/16 16-7/8 3-7/8 6-3/4 60.5 70.0 79.5 203 305
3-3/4 6 6 18 4-5/8 8-1/2 95.0 280 420
4 6 6 18 4-5/8 8-1/2 95.0 280 420
4-1/4 9 6-3/4 22-1/2 5-1/4 9-3/4 152 390 585
4-1/2 9 6-3/4 22-1/2 5-1/4 9-3/4 152 390 585
4-3/4 9 6-3/4 22-1/2 5-1/4 9-3/4 152 390 585
5 9 7-1/2 24 6 10 200 491 737

Dimensions per AISC Manual of Steel Construction thirteenth edition page 15-16

ASD - Allowable Stress Design (according to the AISC 9th Ed.) LRFD - Load and Resistance Factor Design (according to AISC 3rd Ed.)