Screw Threads
By: Amanda Campbell
Updated: March 2, 2011
If you've ever used a hacksaw or reciprocating saw to shorten a machine screw, carriage bolt or threaded rod, you've probably discovered the nut won't go back on after you saw though the metal fastener.
That's because the saw has deformed the threads and created prickly burrs.
The next time you need to shorten a screw, bolt or rod, try this: Put the nut onto the threaded end of the fastener before making the cut. Once you have sawed though, back off the nut using a wrench. The nut will re-form the threads and shear off any burrs.
To shorten a machine screw, carriage bolt or threaded rod:
• Put the nut onto the threaded end of the fastener before making the cut.
• Saw through the screw.
• Back off the nut using a wrench.
• The nut will re-form the threads and shear off any burrs.
That's because the saw has deformed the threads and created prickly burrs.
The next time you need to shorten a screw, bolt or rod, try this: Put the nut onto the threaded end of the fastener before making the cut. Once you have sawed though, back off the nut using a wrench. The nut will re-form the threads and shear off any burrs.
To shorten a machine screw, carriage bolt or threaded rod:
• Put the nut onto the threaded end of the fastener before making the cut.
• Saw through the screw.
• Back off the nut using a wrench.
• The nut will re-form the threads and shear off any burrs.
