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Drilling the whole to bolt together pine sleepers for a retaining wall. Thanks.

2007-10-31 16:15:12 · 8 answers · asked by ants79 3 in Home & Garden Do It Yourself (DIY)

8 answers

That is a kind of sloppy application (not high precision) so you could use the 11mm. If the hole is too tight then either bang on the end of the bolt with a mallet or wiggle the drill to make a wider hole as it is cutting. The extra slop in the hole dimension is not critical there.

2007-10-31 16:35:57 · answer #1 · answered by Rich Z 7 · 0 0

11

2007-10-31 16:19:40 · answer #2 · answered by justin c 1 · 0 0

You didnt mention what the hole is for (yes, I know you are putting them in pine sleepers, but what is the hole for? to hold the bolt, or just allow it to pass through the material?).... if you need a pilot hole, where the hole is actually going to grip a screw or bolt, then use the smaller bit, the pine will be soft enough that the bolt can press the wood out a bit. If you only need to go through the material, (as if the bolt will be anchored beyond the wood, not in the wood) then the larger, and if need be, a washer.

Have Fun

2007-10-31 19:53:26 · answer #3 · answered by thewrangler_sw 7 · 0 0

I would use the 10 mm drill bit and wobble the drill a bit to enlarge the hole to accommodate the bolts.. A somewhat tight drilled hole now will increase in diameter as the wood dries and shrinks over time.

That's my theory and I'm stickin' to it.

10 mm = 0.394 inches
3/8 = 0.375 inches.

2007-10-31 17:04:06 · answer #4 · answered by Tom-SJ 6 · 1 0

I had that problem once when my bicycle was metric so the 3/4 inch wrench was too big but the 5/8 inch was too small. The only solution I see is getting an adapter of some sort, ask at your hardware store.

2007-10-31 16:19:57 · answer #5 · answered by Brian G 3 · 0 0

I would go with 11. To convert metric to standard is to multiply the metric times the standard. 11X.03936=.432 and a 3/8 bolt is .375

2007-10-31 16:28:29 · answer #6 · answered by Dude In Love 3 · 0 0

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2015-01-25 04:29:39 · answer #7 · answered by Anonymous · 0 0

The 11mm might work best as the 10 is almost to small. If you need it snug go with the 10mm.

2007-10-31 16:20:43 · answer #8 · answered by JAN 7 · 0 0

1 Inch is 25.4 mm, so you want about 1/4 inch or 3/8

2016-04-11 06:58:35 · answer #9 · answered by Aline 4 · 0 0

10 mm. = .394"
3/8" = .375"

2007-11-01 16:13:03 · answer #10 · answered by Irv S 7 · 0 0

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