Clevises

Clevises are components of tie rod assemblies that are manufactured by BBI and are largely used alongside turnbuckles. The clevis tends to support a threaded rod at both ends in a standard cross bracing assembly. One end of the clevis is gripped well onto a steel plate and is secured with a pin.

Dimensions

Click table to show drawing
Clevis NumberDimensions in InchesWeight
w/ Pin,
lbs.
Available Strength, kipsGripPart Numbers
Max, WMax, PDNALTASDLRFDMinMaxPlainGalvanized
25/83/417/165/839/1611/165/16(+1/32, -0)1.55.838.7512341715017151
21/27/811/221/21411/45/16(+1/32, -0)2.512.518.8341141715217153
313/813/4311/451/1611/21/2(+1/16, –1/32)5.02537.5341121715417155
31/211/2231/211/2613/41/2(+1/16, –1/16)8.030457821715617157
413/421/4413/4515/1621/2(+1/16, –1/16)11.03552.5782141715817159
521/821/2521/4721/25/8(+3/32, -0)21.062.593.812-341716017161
621/23623/4833/4(+3/32, -0)32.09013513121716217163
7333/473931/27/8(+1/8, –1/16)53.011417114121716417165
8441/484101/8411/2(+1/8, –1/16)80.0225338151716617167

Dimensions per AISCSteel Construction Manual fourteenth edition page 15-14 ASDAllowable Stress DesignLRFDLoad and Resistance Factor Design

Note: The grip size is normally specified as material thickness +¼”, within the constraints of the above table.

Clevis Numbers for Various Rods and Pins

Dia. of Tap, in.Diameter of Pin in Inches
1/25/83/47/8111/411/213/4221/421/223/4331/431/233/44414
1/2222
5/822221/221/221/221/2
3/421/221/221/221/221/2
7/821/221/221/221/23
13333
11/8333331/2
11/4333331/2
13/833331/231/24
11/231/231/2445
15/8444555
13/445555
17/855555
25555566
21/46666677
21/266677777
2 3/4777788
378888888
31/48888888
31/2888888
33/488888
488

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