Andrews Fasteners Ltd

AndFast Malaysia SDN BHD

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Technical specification for T-head bolts (ANSI/AWWA C111/A21.11) image

Technical specification for T-head bolts (ANSI/AWWA C111/A21.11)

Dimensions of T-head (tee-head) bolt and nut

Size
in.
A
±0,05
B
+0,030
-0,074
C
+0,25
-0,05
D*
+3
-0
FH
+0,00
– as spec.
J
+0,15
-0,03
R
max.
5/8 x 31,500,6253,02,000,625±0,04

1,062 -0,04

0,6250,312
¾ x 3½1,750,7503,52,500,750±0,061,250 -0,060,7500,375
¾ x 41,750,7504,03,000,750±0,061,250 -0,060,7500,375
¾ x 4½1,750,7504,53,000,750±0,061,250 -0,060,7500,375
¾ x 51,750,7505,03,000,750±0,061,250 -0,060,7500,375
1 x 5½2,251,0005,53,001,000±0,081,625 -0,081,0000,500
1 x 62,251,0006,03,001,000±0,081,625 -0,081,0000,500
11⁄4 x 62,501,2506,03,501,250±0,082,000 -0,081,2500,625
11⁄4 x 6½2,501,2506,53,51,250±0,082,000 -0,081,2500,625

*) Bolts with dimension C longer than listed above are assumed to use the same thread length requirements as the longest specified.

Chemical Properties

Component:CMnSNiCuNi+Cu+Cr
Min.0,250,201,25
Max.0,201,250,05

Mechanical Properties

Minimum yield strenght45,000 psi (310 MPa)
Minimum elongation in 2 in.20 %

Proof Load of bolt and nut

Bolt Size
in.
Load
(kN)
Load
lbf
5/840,09 000
¾60,013 500
1111,225 000
11⁄4177,940 000

tee bolt connection min

Torque Loads

Pipe size
nom. in.
Bolt Size
in.
Range of Torque
(Nm)
Range of Torque
lbf/ft
Length of Wrench
in.
Length of Wrench*
(mm)
35/861-8145-608203
4-24¾102-12275-9010254
30-361136-163100-12014256
42-4811⁄4163-203120-15016406

*Applied with torque-measuring or torque-indicating wrenches.