SD500® Insulated Panel Screws Bimetal Stainless

SD500® Insulated Panel Screws Bimetal Stainless

Self-drilling long 12–24-gauge panel screws feature threads below the head suitable for fixing insulated panel sheeting to metal. The panel grip thread below the head secures roof sheeting and prevents movement along the screw shank when the roof is walked upon.

These insulation panel screws are a bimetal material – a hardened carbon steel drill tip with a 304 grade stainless steel body and head. This provides the ultimate corrosion protection in a self-drilling screw to the outdoor elements. A dual layer Ruspert surface coating is applied and will not appear to have a typical stainless steel look.

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  • Drill Capacity: 4.5-12mm of Steel
  • Driver Type: 5/16 Hex Socket 
  • Installation Speed: 1800 RPM Max Drill Speed 



  • Head Type: Hex
  • Point Type: Self-Drilling No 5 Point
  • Material: Bimetal (stainless steel 304 grade, heat treated alloy steel tip)
  • Finish: Ruspert
  • Head Dia: 11mm
  • Head Height: 5.3mm 



Austenitic stainless steel 304 grade with Ruspert coating.  Ruspert coating is a high-grade metal surface technology that prevents surface corrosion. Consisting of a baked ceramic surface coating and a second metallic zinc layer, these layers are bonded together through chemical reactions producing a strong coating film.

Product List
SKU Description Availability List Price Pack
More Information
More Information
Delivery SHIPS IN 1 - 2 DAYS
Coating & Plating Ruspert
Material Grade Bimetal Stainless Steel
Head Type Hex Washer
Driver Type Hex Socket
Diameter / Gauge 12g
Point Type Drill Point No.5
Thread Type Fine
Application Timber-to-Steel Self Drilling
Technical Information
SKU Gauge x Length Material Fix. Range Thread Gauge x Length
3S5HFS12090 12-24 x 90mm Bimetal 22 / 67mm Part 12-24 x 90mm
3S5HFS12100 12-24 x 100mm Bimetal 22 / 77mm Part 12-24 x 100mm
3S5HFS12125 12-24 x 125mm Bimetal 47 / 102mm Part 12-24 x 125mm