JT4-4 Stainless Steel 304 (A2) Tek Screws

EJOT JT4-4 fasteners are manufactured from 304 (A2) grade austenitic stainless steel suitable for use when drilling and tapping into ALUMINIUM sections.

The drill point and thread forms are designed to provide maximum mechanical performance with ease of installation into aluminium or timber substrates.

Where specified they are assembled with a S14 stainless steel / EPDM vulcanised sealing washer ensuring a safe seal every time.

These fasteners are zinc coated for aesthetic reasons and waxed to lubricate the surface during installation.

Subject to design approval we typically recommend using the JT4-4-4.8x19 when fixing profiles and rails into EVT helping hand brackets.

The fixing can fix into aluminium sheets and sections 1.5-4.0mm in thickness. 

RJ offer a complete range of EJOT stainless steel fasteners for other external applications.

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  • Downloads
  • Approvals
  • European Technical Approval ETA-10/0200

  • Technical Characteristics
  • Head Type
    8mm Hex Head


    A2 Austenitic Stainless Steel fastener


    S14 Stainless/EPDM vulcanised sealing washer


    Technical specifications
    Drive: 8mm clip hex one piece socket
    Aluminium sections from 1.2 to 3.0mm in thickness


  • Application
  • Use for assembling aluminium rainscreen bracketry. The JT4 Range is designed for fixing aluminium sections of 1.5 - 4.0 mm in thickness. The clamping range varies depending on the fixing WITH or WITHOUT an EPDM washer. For fixing to steel use the JT3 range.

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