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Stainless Steel Electro-Polished Turnbuckle Bodies

  • Turnbuckles
  • Overview
  • Specifing and Ordering Turnbuckles


schematic



Turnbuckles are used to provide length and tension adjustment of tie rods and hanger assemblies. They are widely used in structural steel bracing and pipe support applications.


Turnbuckle Dimensions
THREAD
DIA.
"T"
PART NO. TAKEUP
LENGTH
"B"
NUT
LENGTH
"X"
OVERALL LENGTH
"L"
BODY
WIDTH
"W"
SAFE
WORKING
LOAD
(lbs)
WEIGHT
EACH
(lbs)
3/8" 27TB12SP 6" 5/8" 7 1/4" 1 1/32" 1,200 0.4
1/2" 27TB16SP1 6" 3/4" 7 1/2" 1 5/16" 2,200 0.8
1/2" 27TB16SP3 12" 3/4" 13 1/2" 1 5/16" 2,200 1.3
5/8" 27TB20SP1 6" 15/16" 7 7/8" 1 17/32" 3,500 1.0
5/8" 27TB20SP3 12" 15/16" 13 7/8" 1 17/32" 3,500 1.7
3/4" 27TB24SP1 6" 1 1/8" 8 1/4" 1 25/32" 5,200 1.5
3/4" 27TB24SP3 12" 1 1/8" 14 1/4" 1 25/32" 5,200 2.5
7/8" 27TB28SP1 6" 1 5/16" 8 5/8" 1 7/8" 7,200 1.6
7/8" 27TB28SP3 12" 1 5/16" 14 5/8" 1 7/8" 7,200 3.4
1" 27TB32SP1 6" 1 3/8" 8 3/4" 2 1/32" 10,000 2.0
1" 27TB32SP3 12" 1 1/2" 15" 2 1/32" 10,000 4.6
1 1/8" 27TB36SP 6" 1 3/4" 9 1/2" 2 17/32" 15,200 3.8
1 1/4" 27TB40SP 6" 1 3/4" 9 1/2" 2 17/32" 15,200 3.5
1 3/8" 27TB44SP 6" 1 7/8" 9 3/4" 2 3/4" 21,400 6.0
1 1/2" 27TB48SP 6" 1 7/8" 9 3/4" 3 1/32" 21,400 5.8
1 5/8" 27TB52SP 6" 2 7/16" 10 3/4" 3 9/16" 27,600 9.8
1 3/4" 27TB56SP 6" 2 7/16" 10 3/4" 3 9/16" 27,600 9.5
1 7/8" 27TB60SP 6" 2 9/16" 11 1/8" 4" 34,500 13.4
2" 27TB64SP 6" 2 9/16" 11 1/8" 4" 34,500 13.0
2 1/4" 27TB72SP 6" 3 3/8" 13 1/2" 4 5/8" 48,000 23.5
2 1/2" 27TB80SP 6" 3 3/8" 13 1/2" 5" 60,000 23.5


Notes Regarding Strength

ASTM F1145 and Federal Specification FF-T-791b tabulate the recommended working loads and minimum breaking strengths for each size of turnbuckle body. Our turnbuckles meet the slightly higher safe working loads listed in the table which are taken from the AISC Manual of Steel Construction. These safe working loads are based on safety factor of 5:1.


click here to download data sheet Turnbuckle Data Sheet



clevis

Relevant Standards

Our forged turnbuckle bodies are manufactured to meet ASTM F1145, Type 1, Grade 1 Class B. They also meet the dimensions and load ratings shown in the American Institute of Steel Construction Inc. (AISC) Steel Construction Manual, 13th edition, page 15-16.


Materials

We stock turnbuckle bodies in C1035 steel. Heat-treated carbon steel turnbuckle bodies and stainless steel turnbuckle bodies are available by special order.


Finishes

Standard finish is plain steel, shot blasted after forging. Hot dip galvanizing is available as well as zinc electroplating.


Threads

Standard threads are UNC 2B, RH/LH, with other thread series and profiles also available by special order. Hot dip galvanized turnbuckles are normally tapped oversize after galvanizing to accommodate the zinc coating on the rod threads.


Dimensions

Refer to the turnbuckle table for turnbuckle body dimensions. Please note that the nut area is round instead of hex-shaped for the 2-1/4" and 2-1/2" sizes.


Fittings

Left and right hand stub end fittings are also available. Dimensions for these components are available upon request.



Specifying and Ordering Clevises

• Determine turnbuckle thread size based on safe working load and rod diameter by referring to the
   turnbuckle table below.

• Select take up length for sizes 1" and under.

• Specify the desired finish (typically plain or HDG) and any other special requirements.



clevis schematic

Turnbuckle Dimensions
THREAD
DIA.
"T"
PART NO. TAKEUP
LENGTH
"B"
NUT
LENGTH
"X"
OVERALL LENGTH
"L"
BODY
WIDTH
"W"
SAFE
WORKING
LOAD
(lbs)
WEIGHT
EACH
(lbs)
3/8" 27TB12SP 6" 5/8" 7 1/4" 1 1/32" 1,200 0.4
1/2" 27TB16SP1 6" 3/4" 7 1/2" 1 5/16" 2,200 0.8
1/2" 27TB16SP3 12" 3/4" 13 1/2" 1 5/16" 2,200 1.3
5/8" 27TB20SP1 6" 15/16" 7 7/8" 1 17/32" 3,500 1.0
5/8" 27TB20SP3 12" 15/16" 13 7/8" 1 17/32" 3,500 1.7
3/4" 27TB24SP1 6" 1 1/8" 8 1/4" 1 25/32" 5,200 1.5
3/4" 27TB24SP3 12" 1 1/8" 14 1/4" 1 25/32" 5,200 2.5
7/8" 27TB28SP1 6" 1 5/16" 8 5/8" 1 7/8" 7,200 1.6
7/8" 27TB28SP3 12" 1 5/16" 14 5/8" 1 7/8" 7,200 3.4
1" 27TB32SP1 6" 1 3/8" 8 3/4" 2 1/32" 10,000 2.0
1" 27TB32SP3 12" 1 1/2" 15" 2 1/32" 10,000 4.6
1 1/8" 27TB36SP 6" 1 3/4" 9 1/2" 2 17/32" 15,200 3.8
1 1/4" 27TB40SP 6" 1 3/4" 9 1/2" 2 17/32" 15,200 3.5
1 3/8" 27TB44SP 6" 1 7/8" 9 3/4" 2 3/4" 21,400 6.0
1 1/2" 27TB48SP 6" 1 7/8" 9 3/4" 3 1/32" 21,400 5.8
1 5/8" 27TB52SP 6" 2 7/16" 10 3/4" 3 9/16" 27,600 9.8
1 3/4" 27TB56SP 6" 2 7/16" 10 3/4" 3 9/16" 27,600 9.5
1 7/8" 27TB60SP 6" 2 9/16" 11 1/8" 4" 34,500 13.4
2" 27TB64SP 6" 2 9/16" 11 1/8" 4" 34,500 13.0
2 1/4" 27TB72SP 6" 3 3/8" 13 1/2" 4 5/8" 48,000 23.5
2 1/2" 27TB80SP 6" 3 3/8" 13 1/2" 5" 60,000 23.5

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