Square Head With Tiger-nuts 10mm

A short expansion bolt for hand drilled placements. Use for intermediate protection points or rap anchors, where you accept reduced holding power in return for increased speed and efficiency. Square Head With T-Nut Insert - Climbing Wall FixThe square heads are the normal bolts you see us using most of the time.  They take a 5/16³ Allen wrench to tighten, and once they engage the t-nut that is mounted into the wall, they suck down on a washer that is built into the hold and make the hold sit tight to the wall. Square head, aka socket head cap screw, aka socket head, aka standard, aka normal setting bolt. M10 threaded insert for fixing bolt-on holds to plywood.