Sela washer

Sela washer from Thomas Potter Ltd

Sela Washers used are used when securing garage roofing sheets to create a watertight seal.

When using spring head roofing nails
 just a washer is required as the head of the nail will cover the entire washer to provide a watertight seal.

If using hook bolts
 you will also require a sela cap to cover the washer and nut to complete the seal. 

Available in M6 x 28 outside diameter and M8 x 28mm outside diameter.

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