FastenersCSK (Countersunk) Bolts
Countersunk socket-head fasteners for flush seating in a matching recess.
Countersunk (CSK) fasteners are designed to sit flush with a correctly prepared countersink. Confirm the head angle and drive type, mating-seat geometry, thread, property class, material and finish before selection; the photo does not establish dimensions or grade.
Materials Available
Carbon SteelAlloy SteelStainless Steel
Standards
ISO 10642 countersunk socket-head form, when specified
MTC (EN 10204 3.1/3.2) available on request
| Head | Countersunk head; angle / profile to drawing |
|---|---|
| Drive | Internal hex or other drive as specified |
| Thread & Size | Metric or inch; diameter, pitch and length to order |
| Material / Class | Carbon steel, alloy steel or stainless steel by requirement |
| Standard | ISO 10642 form, where specified |
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