A2 (1.4301 [304] grade) austenitic stainless steel self drilling fastener.
A2 (1.4301 [304] grade) austenitic stainless steel self drilling fastener with 6.0 mm diameter threads into the purlin/ rail . The fasteners are designed for securing halters for aluminium standing seam systems.
Head drive:
The uniquely designed fastener is driven via a square peg above a 7 mm hexagon head. The tapered section below the head engages in the 6.1 mm punched hole of the halter, which is clamped to the purlin/rail. When the correct torque is reached the peg breaks off to ensure the fastener are not overdriven.
If a halter needs re-positioning the socket is reversed and the SDK fastener may be removed via the 7 mm hex drive.
Warranty:
Up to 40 years (period to be confirmed and agreed specific to the project).
Approvals:
Suitable to be used with all major aluminium standing seem manufacturers, subject to halter specification.
| Material | Fastener is manufactured from A2 (1.4301 [304] grade) austenitic stainless steel and are therefore suitable for all corrosivity categories; C1–C5 as defined in BS EN 12944 |
| Uniclass 2015 |
| Product Reference | SDK |
| Drilling capacity | SDKSubstrate material and thickness to be confirmed by contractor. SDK2-S0.7–1.25 mm steel. SDK3-S1.5–2.5 mm steel. |
| Fastener length | 6.0 x 30Clamping range 6–13 mm, to be used with SDK3. 6.0 x 35Clamping range 6–18 mm, to be used with SDK2. 6.0 x 45Clamping range 6–28 mm, to be used with SDK2 and SDK3. |
| Standard product features | Material: Fastener is manufactured from A2 (1.4301 [304] grade) austenitic stainless steel and are therefore suitable for all corrosivity categories; C1–C5 as defined in BS EN 12944. |
| Product Options | Material: Consult manufacturer for suitability with swimming pool applications. |