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67bass71
02-26-2014, 06:18 PM
I am building a blow through 4th for 6 15's but to get the port big enough the sealed section is the top of the box firing down into the ported anyways the question is what screws would you recomend to hold the subs in since they have to hold the whole weight of the sub? Dooesnt have to be a screw can be any thing you recomend.

67bass71
02-26-2014, 11:34 PM
Bump also there will be 3 gain matched amps so 2 subs per chamber at 4.1 per chamber after sub displacement and like 26 cubes before any bracing or 45's on the ported. The port is 30.25 x16 and is 12 inches all external tuned to 40 hoping to play pretty low.

Slo_Ride
02-26-2014, 11:36 PM
1.5 inch course drywall screws.

67bass71
02-26-2014, 11:44 PM
The subs are pretty heavy but i will try them.

Slo_Ride
02-26-2014, 11:50 PM
if you dont wanna use them than you can use t-nuts from parts express.

Slo_Ride
02-26-2014, 11:50 PM
... double post....

keep_hope_alive
02-26-2014, 11:50 PM
i sandwich t-nuts between a double-layer baffle and use machine screws. the t-nuts cannot back out because they are sandwiched and the screws cannot pull-through.

you can also remove the screw as often as you need with no worry of stripping them.

NASTY08IMPALA
02-27-2014, 12:39 AM
Yup i only use 1/4 20 machine hex and tnuts on heavy stuff

67bass71
02-27-2014, 01:20 AM
Anybody got a link?

67bass71
02-27-2014, 01:41 AM
#10-32 Deluxe 6-Prong T-Nuts 50 Pcs. | 081-1088 (http://www.parts-express.com/10-32-deluxe-6-prong-t-nuts-50-pcs--081-1088) these?

Slo_Ride
02-27-2014, 01:53 AM
#10-32 Deluxe 6-Prong T-Nuts 50 Pcs. | 081-1088 (http://www.parts-express.com/10-32-deluxe-6-prong-t-nuts-50-pcs--081-1088) these?

yes those are t-nuts, obviously you''l need screws with it
Penn-Elcom S1040/1165KIT Driver Mounting Kit | 260-775 (http://www.parts-express.com/penn-elcom-s1040-1165kit-driver-mounting-kit--260-775)

mlstrass
02-28-2014, 03:51 AM
SPAX heavy duty #10 (http://www.caraudio.com/forums/usertag.php?do=list&action=hash&hash=10) screws, good for 500+ pounds each. HD has them...

fivedollapizza
02-28-2014, 09:59 AM
i sandwich t-nuts between a double-layer baffle and use machine screws. the t-nuts cannot back out because they are sandwiched and the screws cannot pull-through.

you can also remove the screw as often as you need with no worry of stripping them.

Def doing this on my next box. Never thought of putting then between the two layers. thanks!

keep_hope_alive
02-28-2014, 09:04 PM
Def doing this on my next box. Never thought of putting then between the two layers. thanks!

in addition - you can use security screws to make removing your sub even more difficult. Torx security screws are about $1.25 each.

fivedollapizza
02-28-2014, 09:42 PM
in addition - you can use security screws to make removing your sub even more difficult. Torx security screws are about $1.25 each.

Prob use 4 in each sub to keep cost down. Great tip though.

Should be in the "tips to avoid getting jacked" if it isn't already. Haven't read it in a while.

keep_hope_alive
03-03-2014, 09:42 PM
Prob use 4 in each sub to keep cost down. Great tip though.

Should be in the "tips to avoid getting jacked" if it isn't already. Haven't read it in a while.

"keeping cost down" on security hardware doesn't really make sense given the value of the equipment it is protecting. Using $10 in screws to protect a $500 sub seems reasonable. Using $5 in screws to protect an $800 amp seems reasonable. It's interesting how much people spend on a sub or amp but then balk at a few extra dollars in security or wiring.

:)

craiggus365
03-03-2014, 10:01 PM
Home Depot has those T-Nuts now, at least in NJ they do.

fivedollapizza
03-03-2014, 11:25 PM
"keeping cost down" on security hardware doesn't really make sense given the value of the equipment it is protecting. Using $10 in screws to protect a $500 sub seems reasonable. Using $5 in screws to protect an $800 amp seems reasonable. It's interesting how much people spend on a sub or amp but then balk at a few extra dollars in security or wiring.

:)


If someone has a torx bit with them to steal my subs, what's the difference between using 4 and 8? If anything I'd slow them down cause they'd have to change bits. To a #2 (http://www.caraudio.com/forums/usertag.php?do=list&action=hash&hash=2) square drive. Which is what they're already mounted with.

keep_hope_alive
03-03-2014, 11:33 PM
If someone has a torx bit with them to steal my subs, what's the difference between using 4 and 8? If anything I'd slow them down cause they'd have to change bits. To a #2 (http://www.caraudio.com/forums/usertag.php?do=list&action=hash&hash=2) square drive. Which is what they're already mounted with.

security torx bits come in a selection of sizes. they aren't something a standard thief carries on them. that's why sanctioning bodies (USACi, IASCI, MECA) give full points in install for their use. i also use screw caps to hide the screw head from prying eyes. thieves usually see the equipment prior to actually taking it. if someone can see you have "special" screws, they may plan ahead.

http://www.ukwebtrade.co.uk/resis_torx_tapper_pan.jpg

drbizerk
03-17-2014, 12:45 AM
I use these green Hardi-Backer board screws that have a square bit. Usually found in the flooring section of Lowes / Home Depot....
they will screw all the way through a 3/4" sheet of MDF and hold extremely well.