4 Bolt Torque Pattern

4 bolt torque pattern image

Torque Sequence: 1, 3, 2, 4

For 4 bolt flanges, torque bolts in a criss-cross sequence.

Lookup flange bolt torque patterns on your phone in seconds

Flange Bolt Chart app: With bolt lengths, wrench sizes, and torque patterns.
Flange Bolt Chart App Store download button