For optimal seal screw performance, we recommend creating a clearance gap in the panel, into which the O-ring can be fitted. The "squeeze" of the O-ring, and a slightly oversized gap within which it can reshape itself, causes the O-ring to create a complete seal. The clearance hole thus prevents extrusion into the metal when the screw is under pressure. Our extensive selection of screw and O-ring material, coupled with our vast technical knowledge and communications skills, means that we have all the necessary tools when it comes to providing our customers with the very best self-sealing screws on the market. We don’t just provide clients with the generic; instead, we work closely with our clients to learn about their exact, nuanced needs, and then execute production accordingly. To take advantage of the products and services we offer, please get in touch with us today.
UNC Max Hole Diameter |
Metric Max Hole Diameter |
||
|---|---|---|---|
Nom. Size |
Max. |
Nom. Size |
Max. |
2-56 |
.095 |
M2 |
2.437 |
4-40 |
.127 |
M2.5 |
2.946 |
6-32 |
.151 |
M3 |
3.454 |
8-32 |
.177 |
M3.5 |
3.656 |
10-32 |
.200 |
M4 |
4.546 |
10-24 |
.200 |
M5 |
5.562 |
12-24 |
.228 |
M6 |
6.655 |
1/4-20 |
.265 |
M8 |
9.041 |
5/16-18 |
.332 |
M10 |
11.048 |
3/8-16 |
.397 |
M12 |
14.045 |
7/16-20 |
.467 |
M14 |
16.051 |
1/2-20 |
.531 |
M16 |
18.057 |
* Please note CSFI offers an oversized head product line to accommodate a large opening application.
