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armor plate => fenders, door hardware and other body parts (non armor) => Topic started by: steve-0 on November 20, 2011, 07:00:50 PM

Title: floor board screws and u nuts
Post by: steve-0 on November 20, 2011, 07:00:50 PM

i haven't tried these, let me know if you have better sources

 screw size is #14 by 3/4" long
the original u nuts had a throat depth of 1" from center of the hole.
the longest needed is 3/4" with most of the holes being around 1/2" from the edge.
here are some options

screw part number 90054A313
http://www.mcmaster.com/#catalog/117/3018/=f0tjg6

u nuts
this one doesn't list the throat depth
part number 74-3975
http://www.car-pak.com/Fasteners/c22/p3061/74-3975/product_info.html  


1/2" throat depth
part number Auveco # 13220
http://www.thecliplink.com/nuts-en/u-nuts/u-nut-6.3mm-14-screw-size-.7-1.5mm-range-50-per-box.html
http://dixied.com/store/product4176.html

5/8" throat depth on this one
part number #20000T
http://www.autobodysupplies.com/foldclips.htm

Title: Re: floor board screws and u nuts
Post by: Outsider on November 21, 2011, 05:10:12 PM

Hi Steve, Actually the floor screws are 1/4" 14 pitch thread. They are very hard to find without having a washer formed into the head. I got lucky and found a place that had some of the original style a couple of years ago so I bought all of them they had, and haven't found any more since.

Steve

Title: Re: floor board screws and u nuts
Post by: steve-0 on November 21, 2011, 09:17:36 PM

thanks outsider
the original u-nuts i have are marked 14z. i compared original screws to some #14 screws at the local hardware store and they looked like a match but i didn't actually try them so i will do that and adjust the post. i also haven't been able to find them without the washered head.

it was hard to find u-nuts with a deep throat. try looking up "deep throat nut " on google  ;D

here are some 1/4" 14 threads per inch but they have that washer.
part number 93880A313   
http://www.mcmaster.com/93880A313   

Title: Re: floor board screws and u nuts
Post by: Outsider on November 22, 2011, 05:13:56 AM

Here are some pictures of an original floor screw and the ones I found.
(http://www.surfacezero.com/g503/data/500/medium/DSCN1322JPEG_of.jpg)
(http://www.surfacezero.com/g503/data/500/medium/DSCN1323JPEG_of.jpg)

I have a box of the ones from McMaster Carr if someone wants them I will sell them cheap!

Steve

Title: Re: floor board screws and u nuts
Post by: Outsider on February 26, 2012, 08:49:24 PM

Here is a picture of the screws from Mcmaster-Carr. I bought 100 of these before I found the ones I am using now. If anyone wants these from Mcmaster-Carr I will sell them cheap! $10.00 for what I believe is still 100 of them plus shipping.

(http://i1059.photobucket.com/albums/t427/sverburg/IMG_20120225_194912.jpg)

Steve

Title: Re: floor board screws and u nuts
Post by: steve-0 on June 17, 2012, 01:23:05 PM

here are some unwashered screws.
these don't have the screwdriver slot but some of the originals did not have the slot.

1/4" x 14 threads per inch  3/4" long
http://www.imperialsupplies.com/item/0664102

http://www.fastenal.com/web/products/detail.ex?sku=0139489

#14 x 1" long screw
i think #14 and 1/4" screws are close enough to be interchangeable but i still need to verify this.
here is a no washer screw with the slot in size #14    1" inch long. after trimming the tip of the screw with your sander you will be perty close to the 3/4" originals.

http://www.titanfasteners.com/detail.aspx?item=FNA04032UNSL&id=334


here is one in stainless . they dont show the head style so i dont know if it has the indented head. no slot though.
manufacturer Elco part #HFTH600
you have to order 2500 of them on this link

http://hurripanel.com/-strse-924/Topseal-Stainless-Steel-Type/Detail.bok

Title: Re: floor board screws and u nuts
Post by: steve-0 on March 22, 2014, 11:02:01 PM

here is a good source

site part number A1781
http://www.clipsandfasteners.com/ProductDetails.asp?ProductCode=A1781&CartID=1

Title: Re: floor board screws and u nuts
Post by: Chrishig on November 28, 2018, 05:21:34 PM

I found a good replacement for u nuts. I run a Polaris dealership and found them in my parts bins.  The Polaris part number is 7670145 and can be sourced at any Polaris dealer.

Title: Re: floor board screws and u nuts
Post by: 8683jb on November 28, 2018, 09:24:46 PM

Those look perfect Chris. Thanks for the tip.

Jon

Title: Re: floor board screws and u nuts
Post by: Torque on February 03, 2020, 09:51:55 PM

Anyone try these Polaris U nuts? The best price I can find is $2.34 each. http://www.adeptpowersports.com/oem-parts/polaris-nut-u-type-7670145-part.html
 
 Also looking for screws that will work. The pointy sheet metal #14 screws seem to have a smaller shank diameter and are about 9 threads per inch, that allows the screw to slip through the clip. Thinking these may be OK https://www.mcmaster.com/93880A313

 I don't care they are not exact style, I got way more obvious flaws.....

Title: Re: floor board screws and u nuts
Post by: Outsider on February 04, 2020, 05:50:14 AM

Correct screw size and pitch is 1/4" x 14 threads per inch.

Steve

Title: Re: floor board screws and u nuts
Post by: Scout6734 on February 04, 2020, 08:29:48 AM

Since the 1/4-14 correct looking screws are basically unobtainable i opted for 1/4-20 as i only really cared what the head looks like.
 https://www.ebay.com/itm/STAINLESS-STEEL-SLOTTED-HEX-HEAD-MACHINE-SCREW-1-4-20-X-3-4-100-COUNT-NEW-BOX/233107789399?hash=item36464e9657:g:n-EAAOSwfqJcSfFw:sc:USPSPriority!19962!US!-1

Also the Polaris unuts are in 1/4-20 thread so they will work well.

An honestly since more than likely noones going to be crawling under critiquing our rigs standard unuts in 1/4-20 are very easy to find cheap in bulk other than 2-3.00 each. How many are even on the floors all together