Ask your question Entering your question as a complete sentence will provide more accurate results than keywords or phrases.

Are thru-bolts recommended for use on hollow metal doors?

Thru-bolts are not recommended for use on hollow metal doors. Sex bolts are recommended for these applications.

As covered in paragraph 5.3 (page #4) of SDI's ANSI/SDI A250.6-2003 (R2009) “Recommended Practice for Hardware Reinforcing on Standard Steel Doors and Frames”

 5.3 Thru-bolting

Where reinforcing has not been specified or provided for other than mortised hardware, attachment shall be accomplished by thrubolting. The hardware manufacturer’s instruction sheets shall be closely followed for recommended procedures. Where thru-bolting is required on hollow metal doors, spacers or sex-bolts shall be used to prevent collapsing of face sheets as illustrated in figures 6 and 7

NOTE: The most popular thru-bolting applications are door closers, exit devices, overhead holders, pulls and bar sets.

                                   


DISCLAIMER:

INFORMATION PROVIDED THROUGH THIS SITE IS PROVIDED TO YOU AS IS WITHOUT ANY EXPRESS REPRESENTATIONS OR WARRANTIES OF ANY KIND, AND WE MAKE NO REPRESENTATION OR WARRANTY THAT THIS SITE(OR ANY INFORMATION PROVIDED IN RESPONSE TO YOUR INQUIRY), WILL BE ACCURATE, COMPLETE, OR ERROR-FREE.

YOU AGREE THAT YOU MUST EVALUATE ALL INFORMATION AND RESPONSES, AND THAT YOU BEAR ALL RISKS ASSOCIATED WITH, THE USE OF THIS SITE, INCLUDING ANY RELIANCE ON THE ACCURACY,COMPLETENESS, OR USEFULNESS OF ANY INFORMATION OR MATERIALS MADE AVAILABLE THROUGH THIS SITE.