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FASTENERS
| DRILLING CAPACITY STANDARD FOR 410 STAINLESS STEEL SELF-DRILLING SCREWS |
| Nominal Size of Screw |
Point Style |
Recommended Panel Thickness |
Recommended Drill Speed (R.P.M.) |
| #6 |
N¡ã2 |
0.059" - 0.083" |
2,500 Max. |
| #8 |
N¡ã2 |
0.059" - 0.110" |
2,500 Max. |
| #8 |
N¡ã3 |
0.098" - 0.142" |
2,500 Max. |
| #10 |
N¡ã2 |
0.059" - 0.142" |
2,500 Max. |
| #10 |
N¡ã3 |
0.110" - 0.177" |
2,500 Max. |
| #12 |
N¡ã3 |
0.110" - 0.209" |
1,800 Max. |
| #12 |
N¡ã4 |
0.177" - 0.354" |
1,800 Max. |
| #14 |
N¡ã3 |
0.110" - 0.248" |
1,800 Max. | • Also available with Neoprene or EPDM Bonded Sealing Washers •
DIAMETER AND THREAD PITCH CONVERSION CHART (Reference Chart 1)
| - |
| National Course (NC) |
1-64 |
3-48 |
4-40 |
6-32 |
8-32 |
10-24 |
12-24 |
| National Fine (NF) |
1-72 |
3-56 |
4-48 |
6-40 |
8-36 |
10-32 |
12-28 |
| Metric (Approx.) |
M2 |
M2.5 |
M3 |
M3.5 |
M4 |
M5 |
- |
| |
| National Course (NC) |
1/4-20 |
5/16-18 |
3/8-16 |
7/16-14 |
1/2-13 |
9/16-12 |
5/8-11 |
3/4-10 |
7/8-9 |
| National Fine (NF) |
1/4-28 |
5/16-24 |
3/8-24 |
7/16-20 |
1/2-20 |
9/16-18 |
5/8-18 |
3/4-16 |
7/8-14 |
| Metric (Approx.) |
M6 |
M8 |
M10 |
- |
M12 |
M14 |
M16 |
M20 |
M22 |
| |
| National Course (NC) |
1-8 |
1 1/8-7 |
1 1/4-7 |
1 3/8-6 |
1 1/2-6 |
1 3/4-5 |
2-4.5 |
2 1/2-4 |
3-4 |
| National Fine (NF) |
1-12 |
1 1/8-12 |
1 1/4-12 |
- |
- |
- |
- |
- |
- |
| Unified Thread (UN) |
- |
1 1/8-8 |
1 1/4-8 |
1 3/8-8 |
1 1/2-8 |
1 3/4-8 |
2-8 |
2 1/2-8 |
3-8 |
| Metric (Approx.) |
M24 |
M30 |
M32 |
- |
M36 |
- |
- |
- |
- |
18-8 REFERS TO THE 300 SERIES OF STAINLESS STEEL THAT IS
COMPOSED OF APPROXIMATELY 18% CHROMIUM AND 8% NICKEL.
18-8 REPRESENTS FASTENER PRODUCTS THAT COULD BE
COMPOSED OF 302, 302HQ, 303, 304, 305, 384, XM7
AND OTHER VARIABLES OF THESE GRADES WITH SIMILAR
CHEMICAL COMPOSITIONS.
* SIZES SHOWN ARE APPROXIMATE AND MAY VARY |
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