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Countersunk Captive Screws are designed to lock into place after they have been installed.
These screws feature a countersunk head so that the screws are able to sit flush in the housing that they are placed into, and they are intended to be used alongside pre-drilled and countersunk holes.
They can be created in a wide range of materials, including A2 and A4 stainless steel, as well as brass and phosphor bronze. We can also provide thread locking patches.
Countersunk Captive Screws are required by law on some pieces of machinery and equipment, and this type of fastener sees large usage within industrial machinery and military applications.
Please contact us to further your enquiry.
d1 and L1 dimensions can be to customer specification.
| Socket Countersunk Reduced Thread Captive Screws | ||||||||||||
| THREAD | M2 | M2.5 | M3 | M3.5 | M4 | M5 | M6 | M8 | M10 | M12 | ||
| dk (mm) | 4 | 5 | 6 | 6.5 | 8 | 10 | 12 | 16 | 20 | 24 | ||
| d1 (mm) | 1.4 | 1.8 | 2.2 | 2.6 | 3 | 3.8 | 4.5 | 6.2 | 8 | 9.5 | ||
| S(mm) | 1.27 | 1.5 | 2 | 2 | 2.5 | 3 | 4 | 5 | 6 | 8 | ||
| L1 (mm) | 4 | 5 | 6 | 7 | 8 | 10 | 12 | 16 | 20 | 24 | ||
| K (mm) | 1.24 | 1.55 | 1.7 | 2.1 | 2.3 | 2.8 | 3.3 | 4.4 | 5.5 | 6.5 | ||
| AVAILABLE SIZES | M2 | M2.5 | M3 | M3.5 | M4 | M5 | M6 | M8 | M10 | M8 | ||
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