Description
Screw Torx Socket Countersunk Head 3×12 SS A2 WN5454 — BOLTON SKU 67424.
About the Screw Torx Socket Countersunk Head 3×12
The screw torx skt csk hd description identifies a countersunk-head machine screw driven by an internal hexalobular recess rather than by a slot, a cross recess or a hexagon socket. The recess engages the bit over a larger contact area and along flanks that sit close to perpendicular to the applied torque, which reduces cam-out and lets useful torque be delivered through a small M3 head. This item is the M3 by 12 mm size in A2 austenitic stainless steel, so the thread is a 0.5 mm coarse metric pitch and the screw length is measured to the top of the countersunk head, the head itself sinking into a matching conical seat. WN5454 is the manufacturer works standard the screw is built to; the corresponding dimensional detail is confirmed from the supplier drawing rather than assumed from a general-purpose standard, and can be supplied with the quotation.
Key specifications
| Head form | Countersunk (flat) head, seats flush |
|---|---|
| Drive | Hexalobular internal socket (Torx type) |
| Thread | M3 × 0.5 mm, ISO metric coarse |
| Length | 12 mm |
| Material | A2 austenitic stainless steel |
| Reference standard | WN5454 (manufacturer works standard) |
Typical applications
Countersunk hexalobular screws in M3 are used where a fastener head must finish flush with a machined face or a thin panel: instrument fascias, access covers, camera and optics mounts, and rail or bracket work inside electronics enclosures. The hexalobular drive is preferred on small stainless screws because stainless galls readily and recess damage from cam-out is difficult to recover. At 12 mm the screw suits a shallow countersink into a tapped boss or a nut on the reverse face.
Supplied by BOLTON Technical Equipment Supplies against request for quotation. Add this item to your RFQ basket to request pricing, lead time and documentation requirements (e.g. CoC, datasheets or test reports where applicable).
Browse more in Screws, Bolts, Nuts & Washers.
Reviews
There are no reviews yet.