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Wood Screws
WOODSCREWS are primarily used for connecting wood to wood, and provide a much greater clamping force than nails and are able to be removed for disassembly when required. There are many different types available with the most popular being hardened TWIN or SINGLE thread, in CSK, RND or RAISED head styles. |
Metric DIN 7997
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Gauge |
4 |
6 |
7 |
8 |
10 |
12 |
d1 (dia of unthreaded shank) max |
1.80 |
2.36 |
2.59 |
2.92 |
3.35 |
3.83 |
d1 (dia of unthreaded shank) min |
1.70 |
2.26 |
2.46 |
2.79 |
3.22 |
3.70 |
d2 (head dia) max |
5.46 |
6.90 |
7.60 |
8.33 |
9.75 |
11.17 |
d2 (head dia) min |
5.21 |
6.55 |
7.23 |
7.90 |
9.27 |
10.61 |
k (depth of head) max |
2.06 |
2.54 |
2.77 |
3.00 |
3.45 |
3.91 |
k (depth of head) min |
1.80 |
2.29 |
2.51 |
2.72 |
3.18 |
3.61 |
Recess No |
1 |
2 |
2 |
2 |
2 |
3 |
Materials
A2/304 Stainless Steel
A4/316 Stainless Steel
Aluminium
Brass
Case Hardened
Finishes
Bright zinc plated
Zinc and yellow
Black zinc
Nickel
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