K2 self-tapping screw for sheet metal 6x38 mm

This is the screw used when the mounting components are fastened directly into the roof sheet. It needs no pre-drilled hole: it forms its own thread in the sheet, by deforming the material, not by cutting it. Under the head there is a rubber washer that flattens on tightening and seals the hole, so that water does not get in alongside the screw.

In practice, this means faster installation - a single step instead of drilling and then screwing - and a joint that behaves equally well every time, not depending on how well the hole was prepared. It is approved for steel and aluminium sheet with a thickness between 0,5 and 1,25 mm, that is exactly the thin trapezoidal-type roofing used on halls. Being made of stainless steel, it does not rust and leaves no marks on the roof, and the rubber washer withstands sun and frost without cracking. It weighs 0,009 kg per piece and is supplied in small boxes of 500 pieces, respectively 64.000 per pallet.

K2 article code 2002938, GTIN 4251786212286. Catalogue name: thread-forming screw (non-cutting) 6 x 38 mm. A2 stainless steel, EPDM sealing washer, diameter 6 mm, length 38 mm, hexagon head with size 8 socket drive; mass 0,009 kg/pc, packaging 500 pcs/small box, 64.000 pcs/pallet. Approved for steel and aluminium sheet with a thickness of 0,5-1,25 mm. It is part of the K2 BasicRail system and is used on pitched sheet metal roofs, typically for mounting rail brackets on trapezoidal sheet.

Who it suits

Suitable for installations on halls and buildings with thin metal roofing (0,5-1,25 mm), where the brackets are fastened directly into the sheet and the joint must remain watertight.

Terms explained

• Self-tapping screw: A screw that creates its own thread in the material, without the need for a pre-threaded hole.
• Thread forming: The thread is formed by pushing the material sideways, not by cutting it - this results in a stronger joint and no swarf.
• EPDM sealing washer: A rubber washer under the head of the screw, which is compressed on tightening and stops water entering through the hole.

Technical specifications

Recommended applications

• Fixing brackets and rails on trapezoidal sheet roofs
• Photovoltaic installation on industrial halls with thin metal roofing
• Fastening wind deflectors and sheet metal accessories to the metal structure
• Watertight joints in steel or aluminium sheet of 0,5-1,25 mm

Warranty

12-year K2 Systems product warranty, extendable to 20 years through sizing in K2 Base and documentation in K2 DocuApp

Technical details

Specifications confirmed from the manufacturer's datasheet

The K2 6x38 mm self-tapping screw is intended for fixing mounting components directly into the roof sheet. It is a thread-forming (non-cutting) screw, which forms its own thread in the sheet, producing a joint with high and repeatable load capacity.

The technical catalogue name is thread-forming screw 6x38 mm. The material is A2 stainless steel, and the sealing washer is made of EPDM, which ensures the tightness of the hole against water infiltration. The head is hexagonal, with a size 8 socket drive. It is approved for steel and aluminium sheet with a thickness between 0,5 and 1,25 mm.

The K2 article code is 2002938, GTIN 4251786212286, weight 0,009 kg/pc, packaging 500 pcs/small box and 64.000 pcs/pallet. The product is part of the K2 BasicRail system and is used on pitched sheet metal roofs, typically for mounting rail brackets on trapezoidal sheet.