© htl 2013. Design and build by

about this app

This brand new app from htl is designed to answer your torque related queries in a quick and effective way meaning you can get on with the job without fuss.

It offers the following easy to use features:

  • Flange bolting pattern diagrams
  • Torque figure calculator
  • Imperial/metric conversions

Register for all the latest news from HTL below:

Register for information

The torque calculator figures are for B7/B16 Bolts, 105,000psi minimum yield. They are based on a bolt stress of 52,500psi using copaslip on threads and underside of nut. Co-efficient of Friction 0.12

Please Note: The torque figures are for guide only, for accurate torque figures please contact HTL directly.

v 1.0

© htl 2013. Design and build by

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flange bolting patterns

View the correct tightening sequences for flanges sized between 4 and 28 bolts below:

torque figure calculation

Select your unit type:
Select your bolt size:
Select your bolt size:

The torque calculator figures are for B7/B16 Bolts, 105,000psi minimum yield. They are based on a bolt stress of 52,500psi using copaslip on threads and underside of nut. Co-efficient of Friction 0.12

Please Note: The torque figures are for guide only, for accurate torque figures please contact HTL directly.

A/F Size 7/8"
Torque lbs/ft (Tightening) 50
HTL-W Torque Wrench Required Hand Wrench
SPX Sq. Drive Torque Wrench Required Hand Wrench
SPX Low Profile Torque Wrench Required Hand Wrench
Pneutorque Tool Required Hand Wrench

Required tool images touch an image to view the corrosponding web page (online only)

Product: Hand Torque Wrench

A/F Size 1 1/16"
Torque lbs/ft (Tightening) 100
HTL-W Torque Wrench Required Hand Wrench
SPX Sq. Drive Torque Wrench Required Hand Wrench
SPX Low Profile Torque Wrench Required Hand Wrench
Pneutorque Tool Required Hand Wrench

Required tool images touch an image to view the corrosponding web page (online only)

Product: Hand Torque Wrench

A/F Size 1 1/4"
Torque lbs/ft (Tightening) 175
HTL-W Torque Wrench Required Hand Wrench
SPX Sq. Drive Torque Wrench Required Hand Wrench
SPX Low Profile Torque Wrench Required Hand Wrench
Pneutorque Tool Required PTM-72-1000

Required tool images touch an image to view the corrosponding web page (online only)

Product: Hand Torque Wrench

Product: Pistol Type Pneutorque

A/F Size 1 7/16"
Torque lbs/ft (Tightening) 275
HTL-W Torque Wrench Required HTL-W2
SPX Sq. Drive Torque Wrench Required TWSD-1
SPX Low Profile Torque Wrench Required TWLC-2
Pneutorque Tool Required PTM-72-1000

Required tool images touch an image to view the corrosponding web page (online only)

Product: Torque Wrench

Product: Square Drive Torque Wrench

Product: Low Profile Hydraulic Wrench

Product: Pistol Type Pneutorque

A/F Size 1 5/8"
Torque lbs/ft (Tightening) 410
HTL-W Torque Wrench Required HTL-W2
SPX Sq. Drive Torque Wrench Required TWSD-1
SPX Low Profile Torque Wrench Required TWLC-2
Pneutorque Tool Required PTM-72-1000

Required tool images touch an image to view the corrosponding web page (online only)

Product: Torque Wrench

Product: Square Drive Torque Wrench

Product: Low Profile Hydraulic Wrench

Product: Pistol Type Pneutorque

A/F Size 1 13/16"
Torque lbs/ft (Tightening) 600
HTL-W Torque Wrench Required HTL-W2
SPX Sq. Drive Torque Wrench Required TWSD-1
SPX Low Profile Torque Wrench Required TWLC-2
Pneutorque Tool Required PTM-72-2000

Required tool images touch an image to view the corrosponding web page (online only)

Product: Torque Wrench

Product: Square Drive Torque Wrench

Product: Low Profile Hydraulic Wrench

Product: Pistol Type Pneutorque

A/F Size 2"
Torque lbs/ft (Tightening) 835
HTL-W Torque Wrench Required HTL-W2
SPX Sq. Drive Torque Wrench Required TWSD-1
SPX Low Profile Torque Wrench Required TWLC-2
Pneutorque Tool Required PTM-72-2000

Required tool images touch an image to view the corrosponding web page (online only)

Product: Torque Wrench

Product: Square Drive Torque Wrench

Product: Low Profile Hydraulic Wrench

Product: Pistol Type Pneutorque

A/F Size 2 3/16"
Torque lbs/ft (Tightening) 1130
HTL-W Torque Wrench Required HTL-W4
SPX Sq. Drive Torque Wrench Required TWSD-3
SPX Low Profile Torque Wrench Required TWLC-4
Pneutorque Tool Required PTM-72-2000

Required tool images touch an image to view the corrosponding web page (online only)

Product: Torque Wrench

Product: Square Drive Torque Wrench

Product: Low Profile Hydraulic Wrench

Product: Pistol Type Pneutorque

A/F Size 2 3/8"
Torque lbs/ft (Tightening) 1485
HTL-W Torque Wrench Required HTL-W4
SPX Sq. Drive Torque Wrench Required TWSD-3
SPX Low Profile Torque Wrench Required TWLC-4
Pneutorque Tool Required PTM-92-2700

Required tool images touch an image to view the corrosponding web page (online only)

Product: Torque Wrench

Product: Square Drive Torque Wrench

Product: Low Profile Hydraulic Wrench

Product: Pistol Type Pneutorque

A/F Size 2 9/16"
Torque lbs/ft (Tightening) 1910
HTL-W Torque Wrench Required HTL-W4
SPX Sq. Drive Torque Wrench Required TWSD-3
SPX Low Profile Torque Wrench Required TWLC-4
Pneutorque Tool Required PTM-92-2700

Required tool images touch an image to view the corrosponding web page (online only)

Product: Torque Wrench

Product: Square Drive Torque Wrench

Product: Low Profile Hydraulic Wrench

Product: Pistol Type Pneutorque

A/F Size 2 3/4"
Torque lbs/ft (Tightening) 2405
HTL-W Torque Wrench Required HTL-W8
SPX Sq. Drive Torque Wrench Required TWSD-6
SPX Low Profile Torque Wrench Required TWLC-6
Pneutorque Tool Required PTM-92-3500

Required tool images touch an image to view the corrosponding web page (online only)

Product: Torque Wrench

Product: Square Drive Torque Wrench

Product: Low Profile Hydraulic Wrench

Product: Pistol Type Pneutorque

A/F Size 2 15/16"
Torque lbs/ft (Tightening) 2980
HTL-W Torque Wrench Required HTL-W8
SPX Sq. Drive Torque Wrench Required TWSD-6
SPX Low Profile Torque Wrench Required TWLC-6
Pneutorque Tool Required PTM-119-4500

Required tool images touch an image to view the corrosponding web page (online only)

Product: Torque Wrench

Product: Square Drive Torque Wrench

Product: Low Profile Hydraulic Wrench

Product: Pistol Type Pneutorque

A/F Size 3 1/8"
Torque lbs/ft (Tightening) 3635
HTL-W Torque Wrench Required HTL-W8
SPX Sq. Drive Torque Wrench Required TWSD-11
SPX Low Profile Torque Wrench Required TWLC-8
Pneutorque Tool Required PTM-119-6000

Required tool images touch an image to view the corrosponding web page (online only)

Product: Torque Wrench

Product: Square Drive Torque Wrench

Product: Low Profile Hydraulic Wrench

Product: Pistol Type Pneutorque

A/F Size 3 1/2"
Torque lbs/ft (Tightening) 5235
HTL-W Torque Wrench Required HTL-W8
SPX Sq. Drive Torque Wrench Required TWSD-11
SPX Low Profile Torque Wrench Required TWLC-8
Pneutorque Tool Required PTM-119-6000

Required tool images touch an image to view the corrosponding web page (online only)

Product: Torque Wrench

Product: Square Drive Torque Wrench

Product: Low Profile Hydraulic Wrench

Product: Pistol Type Pneutorque

A/F Size 3 7/8"
Torque lbs/ft (Tightening) 7235
HTL-W Torque Wrench Required HTL-W14
SPX Sq. Drive Torque Wrench Required TWSD-11
SPX Low Profile Torque Wrench Required TWLC-15
Pneutorque Tool Required PT9 MTS

Required tool images touch an image to view the corrosponding web page (online only)

Product: Torque Wrench

Product: Square Drive Torque Wrench

Product: Low Profile Hydraulic Wrench

Product: Standard Pneutorque

A/F Size 4 1/4"
Torque lbs/ft (Tightening) 9700
HTL-W Torque Wrench Required HTL-W30
SPX Sq. Drive Torque Wrench Required TWSD-25
SPX Low Profile Torque Wrench Required TWLC-15
Pneutorque Tool Required PT11 MTS

Required tool images touch an image to view the corrosponding web page (online only)

Product: Torque Wrench

Product: Square Drive Torque Wrench

Product: Low Profile Hydraulic Wrench

Product: Standard Pneutorque

A/F Size 4 5/8"
Torque lbs/ft (Tightening) 12660
HTL-W Torque Wrench Required HTL-W30
SPX Sq. Drive Torque Wrench Required TWSD-25
SPX Low Profile Torque Wrench Required TWLC-30
Pneutorque Tool Required PT11 MTS

Required tool images touch an image to view the corrosponding web page (online only)

Product: Torque Wrench

Product: Square Drive Torque Wrench

Product: Low Profile Hydraulic Wrench

Product: Standard Pneutorque

A/F Size 5"
Torque lbs/ft (Tightening) 16170
HTL-W Torque Wrench Required HTL-W30
SPX Sq. Drive Torque Wrench Required TWSD-50
SPX Low Profile Torque Wrench Required TWLC-30
Pneutorque Tool Required PT13 MTS

Required tool images touch an image to view the corrosponding web page (online only)

Product: Torque Wrench

Product: Square Drive Torque Wrench

Product: Low Profile Hydraulic Wrench

Product: Standard Pneutorque

A/F Size 5 3/8"
Torque lbs/ft (Tightening) 20275
HTL-W Torque Wrench Required HTL-W30
SPX Sq. Drive Torque Wrench Required TWSD-50
SPX Low Profile Torque Wrench Required TWLC-30
Pneutorque Tool Required PT13 MTS

Required tool images touch an image to view the corrosponding web page (online only)

Product: Torque Wrench

Product: Square Drive Torque Wrench

Product: Low Profile Hydraulic Wrench

Product: Standard Pneutorque

A/F Size 21mm
Torque NM (Tightening) 65
HTL-W Torque Wrench Required Hand Wrench
SPX Sq. Drive Torque Wrench Required Hand Wrench
SPX Low Profile Torque Wrench Required Hand Wrench
Pneutorque Tool Required Hand Wrench

Required tool images touch an image to view the corrosponding web page (online only)

Product: Hand Torque Wrench

A/F Size 24mm
Torque NM (Tightening) 100
HTL-W Torque Wrench Required Hand Wrench
SPX Sq. Drive Torque Wrench Required Hand Wrench
SPX Low Profile Torque Wrench Required Hand Wrench
Pneutorque Tool Required Hand Wrench

Required tool images touch an image to view the corrosponding web page (online only)

Product: Hand Torque Wrench

A/F Size 27mm
Torque NM (Tightening) 110
HTL-W Torque Wrench Required Hand Wrench
SPX Sq. Drive Torque Wrench Required Hand Wrench
SPX Low Profile Torque Wrench Required Hand Wrench
Pneutorque Tool Required Hand Wrench

Required tool images touch an image to view the corrosponding web page (online only)

Product: Hand Torque Wrench

A/F Size 30mm
Torque NM (Tightening) 195
HTL-W Torque Wrench Required Hand Wrench
SPX Sq. Drive Torque Wrench Required Hand Wrench
SPX Low Profile Torque Wrench Required Hand Wrench
Pneutorque Tool Required PTM-72-1000

Required tool images touch an image to view the corrosponding web page (online only)

Product: Hand Torque Wrench

Product: Pistol Type Pneutorque

A/F Size 36mm
Torque NM (Tightening) 335
HTL-W Torque Wrench Required HTL-W2
SPX Sq. Drive Torque Wrench Required TWSD-1
SPX Low Profile Torque Wrench Required TWLC-2
Pneutorque Tool Required PTM-72-1000

Required tool images touch an image to view the corrosponding web page (online only)

Product: Torque Wrench

Product: Square Drive Torque Wrench

Product: Low Profile Hydraulic Wrench

Product: Pistol Type Pneutorque

A/F Size 41mm
Torque NM (Tightening) 490
HTL-W Torque Wrench Required HTL-W2
SPX Sq. Drive Torque Wrench Required TWSD-1
SPX Low Profile Torque Wrench Required TWLC-2
Pneutorque Tool Required PTM-72-1000

Required tool images touch an image to view the corrosponding web page (online only)

Product: Torque Wrench

Product: Square Drive Torque Wrench

Product: Low Profile Hydraulic Wrench

Product: Pistol Type Pneutorque

A/F Size 46mm
Torque NM (Tightening) 670
HTL-W Torque Wrench Required HTL-W2
SPX Sq. Drive Torque Wrench Required TWSD-1
SPX Low Profile Torque Wrench Required TWLC-2
Pneutorque Tool Required PTM-72-2000

Required tool images touch an image to view the corrosponding web page (online only)

Product: Torque Wrench

Product: Square Drive Torque Wrench

Product: Low Profile Hydraulic Wrench

Product: Pistol Type Pneutorque

A/F Size 50mm
Torque NM (Tightening) 905
HTL-W Torque Wrench Required HTL-W2
SPX Sq. Drive Torque Wrench Required TWSD-1
SPX Low Profile Torque Wrench Required TWLC-2
Pneutorque Tool Required PTM-72-2000

Required tool images touch an image to view the corrosponding web page (online only)

Product: Torque Wrench

Product: Square Drive Torque Wrench

Product: Low Profile Hydraulic Wrench

Product: Pistol Type Pneutorque

A/F Size 55mm
Torque NM (Tightening) 1165
HTL-W Torque Wrench Required HTL-W4
SPX Sq. Drive Torque Wrench Required TWSD-3
SPX Low Profile Torque Wrench Required TWLC-4
Pneutorque Tool Required PTM-72-2000

Required tool images touch an image to view the corrosponding web page (online only)

Product: Torque Wrench

Product: Square Drive Torque Wrench

Product: Low Profile Hydraulic Wrench

Product: Pistol Type Pneutorque

A/F Size 60mm
Torque NM (Tightening) 1510
HTL-W Torque Wrench Required HTL-W4
SPX Sq. Drive Torque Wrench Required TWSD-3
SPX Low Profile Torque Wrench Required TWLC-4
Pneutorque Tool Required PTM-92-2700

Required tool images touch an image to view the corrosponding web page (online only)

Product: Torque Wrench

Product: Square Drive Torque Wrench

Product: Low Profile Hydraulic Wrench

Product: Pistol Type Pneutorque

A/F Size 65mm
Torque NM (Tightening) 1875
HTL-W Torque Wrench Required HTL-W4
SPX Sq. Drive Torque Wrench Required TWSD-3
SPX Low Profile Torque Wrench Required TWLC-4
Pneutorque Tool Required PTM-92-2700

Required tool images touch an image to view the corrosponding web page (online only)

Product: Torque Wrench

Product: Square Drive Torque Wrench

Product: Low Profile Hydraulic Wrench

Product: Pistol Type Pneutorque

A/F Size 70mm
Torque NM (Tightening) 2340
HTL-W Torque Wrench Required HTL-W8
SPX Sq. Drive Torque Wrench Required TWSD-6
SPX Low Profile Torque Wrench Required TWLC-8
Pneutorque Tool Required PTM-119-4500

Required tool images touch an image to view the corrosponding web page (online only)

Product: Torque Wrench

Product: Square Drive Torque Wrench

Product: Low Profile Hydraulic Wrench

Product: Pistol Type Pneutorque

A/F Size 75mm
Torque NM (Tightening) 2820
HTL-W Torque Wrench Required HTL-W8
SPX Sq. Drive Torque Wrench Required YWSD-6
SPX Low Profile Torque Wrench Required TWLC-8
Pneutorque Tool Required PTM-119-4500

Required tool images touch an image to view the corrosponding web page (online only)

Product: Torque Wrench

Product: Square Drive Torque Wrench

Product: Low Profile Hydraulic Wrench

Product: Pistol Type Pneutorque

A/F Size 80mm
Torque NM (Tightening) 3615
HTL-W Torque Wrench Required HTL-W8
SPX Sq. Drive Torque Wrench Required TWSD-11
SPX Low Profile Torque Wrench Required TWLC-8
Pneutorque Tool Required PTM-119-6000

Required tool images touch an image to view the corrosponding web page (online only)

Product: Torque Wrench

Product: Square Drive Torque Wrench

Product: Low Profile Hydraulic Wrench

Product: Pistol Type Pneutorque

A/F Size 85mm
Torque NM (Tightening) 4515
HTL-W Torque Wrench Required HTL-W8
SPX Sq. Drive Torque Wrench Required TWSD-11
SPX Low Profile Torque Wrench Required TWLC-8
Pneutorque Tool Required PT9 MTS

Required tool images touch an image to view the corrosponding web page (online only)

Product: Torque Wrench

Product: Square Drive Torque Wrench

Product: Low Profile Hydraulic Wrench

Product: Standard Pneutorque

A/F Size 95mm
Torque NM (Tightening) 6705
HTL-W Torque Wrench Required HTL-W8
SPX Sq. Drive Torque Wrench Required TWSD-11
SPX Low Profile Torque Wrench Required TWLC-15
Pneutorque Tool Required PT9 MTS

Required tool images touch an image to view the corrosponding web page (online only)

Product: Torque Wrench

Product: Square Drive Torque Wrench

Product: Low Profile Hydraulic Wrench

Product: Standard Pneutorque

A/F Size 100mm
Torque NM (Tightening) 8825
HTL-W Torque Wrench Required HTL-W14
SPX Sq. Drive Torque Wrench Required TWSD-25
SPX Low Profile Torque Wrench Required TWLC-15
Pneutorque Tool Required PT11 MTS

Required tool images touch an image to view the corrosponding web page (online only)

Product: Torque Wrench

Product: Square Drive Torque Wrench

Product: Low Profile Hydraulic Wrench

Product: Standard Pneutorque

A/F Size 110mm
Torque NM (Tightening) 11495
HTL-W Torque Wrench Required HTL-W30
SPX Sq. Drive Torque Wrench Required TWSD-25
SPX Low Profile Torque Wrench Required TWLC-30
Pneutorque Tool Required PT11 MTS

Required tool images touch an image to view the corrosponding web page (online only)

Product: Torque Wrench

Product: Square Drive Torque Wrench

Product: Low Profile Hydraulic Wrench

Product: Standard Pneutorque

A/F Size 120mm
Torque NM (Tightening) 14645
HTL-W Torque Wrench Required HTL-W30
SPX Sq. Drive Torque Wrench Required TWSD-50
SPX Low Profile Torque Wrench Required TWLC-30
Pneutorque Tool Required PT13 MTS

Required tool images touch an image to view the corrosponding web page (online only)

Product: Torque Wrench

Product: Square Drive Torque Wrench

Product: Low Profile Hydraulic Wrench

Product: Standard Pneutorque

A/F Size 130mm
Torque NM (Tightening) 19450
HTL-W Torque Wrench Required HTL-W30
SPX Sq. Drive Torque Wrench Required TWSD-50
SPX Low Profile Torque Wrench Required TWLC-30
Pneutorque Tool Required PT13 MTS

Required tool images touch an image to view the corrosponding web page (online only)

Product: Torque Wrench

Product: Square Drive Torque Wrench

Product: Low Profile Hydraulic Wrench

Product: Standard Pneutorque

measurement conversion

Enter unit:




Result: