Tonight I swapped nearly all the stock screws in my 007s to aluminum.
Screws were from: www.fastener-express.com
Example Aluminum screw: http://www.fastener-express.com/inde...OD&ProdID=2257
Keeping in mind that I have two 007s, so I need twice as many screws, here's what I ordered and what I ended up using.
M3 X .5 X 6MM Flat Head Cap Screw Alum. 50 Pieces AFHM3006-3G3 Qty: 1 x $8.72 [Used all of them, will take another 12 to get me in full carpet configuration]
M3 X .5 X 10MM Flat Head Cap Screw Alum 50 Pieces FHM3010-3G3 Qty: 1 x $9.14 [Used about 20]
M3 X .5 X 6MM Button Head Cap Screw Alum. 50 Pieces ABHM3006-3G6 Qty: 2 x $8.61 [Note quantity=2. Used about 80 of them]
M3 X .5 X 10MM Button Head Cap Screw Alum. 50 Pieces ABHM3010-3G6 Qty: 1 x $9.14 [Used 25 of them]
M3 X .5 X 14MM Button Head Cap Screw Alum. 50 Pieces ABHM3014-3H1 Qty: 1 x $9.56 [Used 8 of them]
From what I learned, I would place the same order but without the 14mm buttons. At most you can use 4/car, and if you to 3mm of shims on the rear hub (common carpet setup) you'll want 16mm bolts instead.
Here's a list of the steel M3 screws left in the cars:
-all 8 hingepin holder M3x16, because I've bent like four of these, so definitely not a place for Aluminum.
-all 3 layshaft-spur M3x5 bolts, because they don't have M3x5
-the M3x5 upper deck bolt
I was able to replace every M3 except those ones with the aluminums listed above. In some cases I ended up with shorter or longer Al screws, because I didn't have a complete selection (like M3x8 in button and countersunk), but they all seem OK.
Weight savings on the chassis from this screw change: 25 grams on one car, 28 grams on the other. There is a difference because the 28g car runs battery bumpers and a battery strap, so had a few more screws to swap.
No head or thread stripping issues. Frankly, these Al fasteners are surprisingly nice, and aren't easy to deform and strip like the blue Als that came with the FTTC4. I used a good driver (Integy Ti), and I'm a happy guy.
Cheaper than titanium. I probably should have pointed that out earlier. I spent $54 for enough screws for two cars and tons of extras. Titaniums would have set me back like $130, and I wouldn't have spares.