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Bolt Tightening Torque Calculator
Custom Calculator
Bolt Size (Inch)
-
3/8
1/2
5/8
3/4
7/8
1
1 1/8
1 1/4
1 3/8
1 1/2
1 5/8
1 3/4
1 7/8
2
2 1/4
2 1/2
2 3/4
3
3 1/4
3 1/2
3 3/4
4
4 1/4
4 1/2
4 3/4
5
5 1/4
5 1/2
Number of Bolt
Thread Per Inch (TPI) *
-
8
9
10
11
12
14
Bolt Material *
-
ASTM A193 Gr. B16
ASTM A193 Gr. B5
ASTM A193 Gr. B6
ASTM A193 Gr. B6X
ASTM A193 Gr. B7
ASTM A193 Gr. B7M
ASTM A320 Gr. B8
ASTM A320 Gr. B8M
ASTM A354 Gr. BC
ASTM A354 Gr. BD
ASTM A449
ASTM A453 Gr. 650 Class A
ASTM A453 Gr. 650 Class B
ASTM A453 Gr. 650 Class C
ASTM A453 Gr. 650 Class D
ASTM A479 Gr. XM-19
ASTM A540 Gr. B21 Class 1
ASTM A540 Gr. B21 Class 2
ASTM A540 Gr. B21 Class 3
ASTM A540 Gr. B21 Class 4
ASTM A540 Gr. B21 Class 5
ASTM A540 Gr. B23 Class 1
ASTM A540 Gr. B23 Class 2
ASTM A540 Gr. B23 Class 3
ASTM A540 Gr. B23 Class 4
ASTM A540 Gr. B23 Class 5
ASTM A540 Gr. B24 Class 1
ASTM A540 Gr. B24 Class 2
ASTM A540 Gr. B24 Class 3
ASTM A540 Gr. B24 Class 4
ASTM A540 Gr. B24 Class 5
Coefficient of Friction
-
API Bull 5A2 (0.13)
Anti Seize (0.09)
Anti Seize (paste) (0.14)
Beldamite ASC (0.13)
Berutex FH-34 (0.16)
Berutex FH-35 (0.16)
Biral BASC (0.11)
Castrol Nucleol S202 (0.08)
Copaslip (0.12)
Coppercrest (0.14)
Copper Ease (0.14)
Coppergrease (0.15)
**Coppergrease (0.11)
Copperslip (0.09)
**DAG156 (0.15)
DAG580 (Dry Lubricant) (0.16)
Easyrun100 (0.08)
Fel-ProC-102 (0.16)
Fordec Copper Anti Seize (0.15)
Gleitmo 165 (0.1)
HP Anti Seize (0.15)
LFCP 5006 (0.2)
Molykote Cu-7439 (0.15)
Molykote 1000 (0.11)
Molykote Q5-7405 (0.04)
Molykote G-Rapid (0.08)
Molykote G-Rapid-Plus (0.09)
Molykote HSC (0.11)
Molykote Ti 1200 (0.12)
Molykote 7443 (0.13)
Molykote P37 Paste (0.12)
Molyslip AS60 (0.07)
Never Seez Std grade (NS160) (0.18)
Never Seez Std grade (NS165) (0.18)
Nickel-Eez (0.12)
OKS 235 (0.11)
OKS 240 (0.12)
OKS 250 (0.08)
OKS 503 (0.06)
OKS 504 (0.09)
OKS 505 (0.1)
OKS 506 (0.11)
OKS 507 (0.1)
Omega 99 (0.13)
Omega 99N (0.09)
Omega 95 (0.12)
Molybdenum Disulfide (MoS
₂
) Graphite grease (0.10)
Molybdenum Disulfide (MoS
₂
) grease (0.12)
Cooper Graphite grease (0.13)
Graphite grease (0.14)
Zirconium Disulfide (ZrO
₂
) grease (0.15)
Dry (0.20)
Dry for re-use bolt (0.30)
Average Bolt Stress
-
40%
45%
50%
55%
60%
65%
70%
75%
Hydraulic Torque Wrench Model
-
SQV-2
VERSA-2
W-2000
TWS-45N
TWH-54
CR-5
TWH-120
LP-02
TWS-150N
A-11
TWH-210
LP-03
LP-4.5
Pump Type
-
Electric
Battery
Pneumatic
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