Excalibur Screwbolts are manufactured from High Tensile Boron Steel to BS3111/9/2.1.A Case Hardened and Zinz Plated. Self Tapping fixing for use in Concrete, Solid Brick, Hollow Brick, Concrete Blocks and Natural Stone.
Specification: 8mm x 50mm Boron Steel, Zinc Plated
Drill Size: 8mm.
Hole Depth: 66mm.
Also available with Countersunk, Dome, Hook & Eye Heads.
Please email special needs, for a prompt reply.