6pc 8mm closed hook bolts

• For secure and reliable fixing of items and fixtures to masonry, concrete, brick, block etc.
• Requires a 14mm hole for the expansive bolt
• M8 thread requires 13mm spanner to tighten expansion nut
• Internal eye diameter: 20mm
• Requires a 14mm hole for the expansive bolt.

NOTE: These expansion bolts are not suitable for works requiring Building Control or Local Authority sign-off such as safety rails, balustrades, load-bearing joists/ wall plates etc.