I have used the Tapcon concrete screws quite often and have one big problem with them. The ones with the Phillips head are a problem because the screw bit rides up out of the screw when the screw becomes tight in the predrilled hole. I believe they would work a lot better if they had a drive like the screws I've been buying at Lowes lately. They are not concrete screws but they have a Phillips head with a square drive at the tip. In other words, you can use a Phillips bit, a square bit or for the most positive contact is there is a special bit that comes with screws that has both a Phillips bit with a square tip on it. With the special bit, the bit never rides up out of the screw. For those who are visually impaired, like me, who can't always hold the drill exactly perpendicular to the screw, this bit still holds. Although these screws are available only in exterior grade, I use them exclusively indoors because of the fact that don't allow slippage with the bit.
Regards, Tom H. -----Original Message----- From: blindhandyman@yahoogroups.com [mailto:blindhandy...@yahoogroups.com] On Behalf Of Lenny McHugh Sent: Wednesday, November 25, 2009 5:58 PM To: handyman-blind Subject: [BlindHandyMan] TapconR Concrete Screws- Stainless Steel Concrete Screws for fastening to concrete, brick and block Al, here is a little more information. I did not see the length choices. Probably somewhere else on the site. TapconR concrete screws are ideal for use in concrete, brick or block base material. The threads of the Tapcons actually cut threads into the base material - providing excellent holding values. The TapconR concrete screw comes in two diameters - 3/16" and 1/4", and two different head styles- hex washer head and flat counter sunk Phillips. The bit to use with each size of TapconR are: a.. 3/16" diameter TapconR = 5/32" bit b.. 1/4" diameter TapconR = 3/16" bit Each TapconR is coated with a Blue ClimasealR coating. This coating provides excellent rust resistance. Tapcons have also been tested in a salt spray environment for 720 hours with less than 10% red rust, per ASTM B117. The drivers to use with the different head style Tapcons are: a.. #2 Phillips - 3/16" Flat TapconR b.. 1/4" Socket - 3/16" Hex TapconR c.. #3 Phillips - 1/4" Flat TapconR d.. 5/16" Socket - 1/4" Hex TapconR http://www.concretescrews.com/ ------------------------------------ Send any questions regarding list management to: blindhandyman-ow...@yahoogroups.com To listen to the show archives go to link http://www.acbradio.org/pweb/index.php?module=pagemaster&PAGE_user_op=view_p age&PAGE_id=33&MMN_position=47:29 Or ftp://ftp.acbradio.org/acbradio-archives/handyman/ The Pod Cast address for the Blind Handy Man Show is. http://www.acbradio.org/news/xml/podcast.php?pgm=saturday Visit The Blind Handy Man Files Page To Review Contributions From Various List Members At The Following address: http://www.jaws-users.com/JAWS/handyman/ Visit the archives page at the following address http://www.mail-archive.com/blindhandyman@yahoogroups.com/ If you would like to join the JAWS Users List, then visit the following address for more information: http://www.jaws-users.com/ For a complete list of email commands pertaining to the Blind Handy Man list just send a blank message to: blindhandyman-h...@yahoogroups.comyahoo! Groups Links
