K2 Systems Hex Head Screw M8x20 – 2001729

K2 Systems According to the K2 data sheet, the cylinder head bolt M8x20 (2001729) is a hex socket cylinder head bolt with underhead serrations. It is one of the connecting parts of the K2 pitched roof systems and weighs around 13 g.

What the bolt is used for

When tightened, the underhead serrations grip into the contact surface and secure the connection against loosening. According to the K2 drawing, a M8x20 cylinder head bolt with underhead serrations is fitted, for example, to the SingleHook 3S (2003215) roof hook, where it connects the Climber to the base plate. You will need this as a spare part if bolts are missing during assembly or if a component is misaligned.

The flat cylinder head adds hardly any bulk. It is tightened using an Allen key.

Key specifications

• Thread: M8, length: 20 mm
• Head shape: Cylindrical head with hex socket and undercut
• Dimensions: head diameter 13 × 13 mm
• Application: Pitched roof, 12-year product warranty
• Packaging unit as per catalogue: 200 pieces

Matching items

The K2 roof hook 2003215 and the hammer-head screw for SingleRail 20/12 M8x20. All fixing components can be found under Substructure and at K2 Systems.

scope of delivery

M8x20 cylinder head bolt.