Bright Zinc Plated M10 countersunk bolts for attaching bolt on climbing holds that accept M10 countersunk bolts to climbing walls.  

Stainless Steel M10 countersunk bolts for attaching bolt on climbing holds that accept M10 countersunk bolts to climbing walls.   

Key ingredients to help keep everything in place, for use on Plywood.

Internally Threaded Sockets for securing climbing holds onto brick and concrete walls.