Attaching things to frame

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Mar 12, 2017 | 03:40 PM

armyaviation

Thread Starter

Tuned

Joined: Aug 2012

Posts: 387

Likes: 0

From: Enterprise, AL

Attaching things to frame

I am starting to plan out brake line, fuel line, wire loom routing. What is the best way to connect the hangers to the frame...self tapping screws, nut and bolt. I am using rubber coated mounts for fuel lines, is it the same for brake and wire looms?

Mar 12, 2017 | 04:49 PM

jniolon

old and in the way

Joined: Jul 1997

Posts: 5,918

Likes: 1,048

From: Lovely Hueytown Alabama

Hi Tom... self tapping are the easiest... I'd use stainless... but you have to watch out for those sharp edges sticking... unless you grind them off... I've used both but drilling then bolting on with #20s is time consuming...

john

Mar 12, 2017 | 04:53 PM

pweng1

Fleet Mechanic

Joined: Feb 2014

Posts: 1,350

Likes: 24

From: Maryland

Sharpen a good drill bit and use the socket driver on self tapping and they are done in no time.

Mar 12, 2017 | 10:33 PM

Mixer man

Logistics Pro

Joined: Sep 2014

Posts: 4,920

Likes: 21

From: Bothell & Silverdale, WA

I would use frame clips for the brake and fuel tubing using split vinyl tubing insulators, and the same for the loom, if it isn't too big. Self tappers are ok on the outside of the frame, but look really dumb from the outside when used on the inside (grind them flush if you do). Personally, I prefer machine screws w/washers and Nyloks over self tappers any day of the week.

Mar 13, 2017 | 02:15 AM

Normalbloke

Senior User

Joined: Oct 2011

Posts: 322

Likes: 1

From: Old Hampshire, UK.

Self tappers are probably the worst solution for your use IMHO. They look amateur, are prone to fail, and rarely hold torque. I'd go with stainless bolts,nuts and washers personally, but to each their own. Army aviation? Have you seen many self tappers holding any critical lines on anything that flies in your experience?

Mar 13, 2017 | 06:23 AM

Indybeer

Laughing Gas

Joined: May 2010

Posts: 1,125

Likes: 191

From: Wharton, PA

For hard line I used adel clamps with stainless hardware. For the wire loom I used frame clips to hold the wire in place. I picked them up at a local trailer supply.

Mar 13, 2017 | 05:34 PM

petemcl

Logistics Pro

Joined: Nov 2011

Posts: 4,685

Likes: 80

From: Northville, MI

I'm using SS clips bolted through the frame with bolts and nylok nuts. There are holes in the frame already where OEM clips were mounted. I only had to add a few.

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