Self-drilling Screws

Powerdrive metal roofing/cladding self-drilling screws consist of three series, each series with a different corrosion resistance class for optimized corrosion protection depending on applied environment.

All series have many fastener lengths with several head-styles and drill-points.
Series available – JR Series
, JC3 Series, JC4 Series, and STX Series.
Screws_Img3736-2

Overview

Series Corrosion Resistance Coating Steel

Light industrial/Urban environment
Category 2 per ISO 9223
Ruspert grey or silver Carbon steel

Moderate industrial environment
Category 3 per ISO 9223
Zinc-Tin Carbon steel

Severe industrial environment
Category 4 per ISO 9223
Zinc-Tin Carbon steel
Ruspert silver Bi-metal:
Carbon steel &
Stainless Steel-304

*Mechanical data such as pull-out loads, tensile & shear strength of each series can be found in the brochure downloads.

Specifications

The JR Series are carbon steel self-drillers coated with attractive grey or silver RUSPERT coating consisting of zinc basecoat, a chemical adhesive layer & an inorganic ceramic topcoat-sealer that is baked at 200°C, providing corrosion resistance withstanding ISO 9223 Category 2 environments. A wide selection is provided for fixing to both timber and steel substrates.
Specifications
Steel : Grade 1022 carbon steel
Coating : RUSPERT grey or silver
Corrosion
Resistance
: ASTM B117, 500-hours accelerated salt spray test
Application : External use with moderate levels of condensation
Head Styles

Hex

Pan

Wafer

Flat
Drill Points
DX for fixing to steel
SD for fixing to thick steel
RX for fixing to thin steel or timber
TD for fixing to timber
The JC3 Series are zinc-tin plated carbon steel self-driller for a silver colored finish and are able to withstand environment of ISO 9223 Category 3. Our selection within this series is applicable for fixing to both steel and timber substrates.
Specifications
Steel : Grade 1022 carbon steel
Coating : Zinc-tin (80/20) @ 25-µm thick
Corrosion
Resistance
: AS 3566.2 Class-3
Application : External use in mild, moderate industrial/marine environment
Head Styles

Hex

Pan

Wafer

Flat
Drill Points
DX for fixing to steel
SD for fixing to thick steel
RX for fixing to thin steel or timber
TD for fixing to timber
The JC4 Series are carbon steel self-driller with heavy zinc-tin plating, allowing this series to withstand environment of ISO 9223 Category 4. Our selection within this series is applicable for fixing to both steel and timber substrates.
Specifications
Steel : Grade 1022 carbon steel
Coating : Zinc-tin (80/20) @ 45-µm thick
Corrosion
Resistance
: AS 3566.2 Class-4
Application : External use in moderate, severe industrial/marine environment
Head Styles

Hex
Drill Points
DX for fixing to steel
RX for fixing to thin steel or timber
TD for fixing to timber

BIMET principle

Powerdrive STX­® screw series’ head & loadbearing shank is made of non-hardened SUS-304 stainless-steel (18/8) containing 18% Chromium and 8% Nickel, while the drill-point (pilot) section is comprised of hardened steel. This bi-metal principle effectively combines stainless-steel rustfree performance with excellent drilling & threadforming capabilities of the hardened steel pilot section.

STX®is a registered trademark of Powerdrive (PJ) Sdn Bhd.

Characteristics

  • Corrosion resistance withstanding ISO 9223 Category 4
    environments
  • Is austenitic, thus non-magnetic
  • Drillability strength assured with a carbon steel drill-point

STX® selection of sizes

Part No. Screw
dia
Shank
length
Clamp-up
length
Pilot
section
# d mm L mm KL mm PL mm
STRX.520HM.S16 5.0 19 8 11
STX3.525HM.S16 5.0 25 12 13
STX3.662HM.S16 5.5 62 45 17
STX3.672HM.S16 5.5 72 55 17
STSD.638HM.S16 5.5 38 12 26