Tightening no hub couplings, how tight is too tight?

[frank19991999]

Hello,

Just finished upgrading a shower drain to 2", I cut out the 3x3x 1.5 wye and replaced it with a 3 x3x 2, I used 3" shielded no hub couplings . I am weekend warrior, I dont own a 60 lb 5/16" torque wrench, looking for suggestions on how much to tighten the screws without damaging the clamps.

Thanks much

 

[Terry]

When the metal strips start to twist, it's tight enough. It doesn't take much with a 5/16" nut driver by hand.

 

[Sponsor]

 

[Highlander]

They also make a tool just for that, around $8-$9. Stops tightening when it hits 60 ft/lbs. For small projects it's a lot cheaper and easier to use in tight spots than a mechanic's torque wrench with dial/gauge etc... Big home improvement stores should have them (this one's from Big Blue).

 

[Reach4]

Stops tightening when it hits 60 ft/lbs.

You want 60 inch-pounds, which is 5 ft-lbs.

 

[hj]

Where do you buy yours? I have NEVER seen that style sell for "under $10.00".

 

[Highlander]

My bad, 60 inch/pounds.

Lowes has it listed for $7.98 online, made by American Valve. At that price probably wouldn't last long in full-time use but OP was asking about a small diy project.
https://m.lowes.com/pd/AMERICAN-VALVE-Torque-Wrench/1244081

Terry please delete the link if it's against policy.

 

[hj]

That design was originally make by RIdgid and my 1992 price book lists it at$28.00.