EMPLOYEE WAS INSTALLING THE LAST ROW OF 6' BOLTS AT THE TIME OF THIS INCIDENT. IT WAS LOW ENOUGHAT THE FACE THAT HE HAD TO BEND THE BOLT TO INSTALL IT. HE PUSHED THE BOLT JUST FAR ENOUGH INTO THE ROOF TO STRAIGHTEN IT A LITTLE TO GET IN THEDRILL. IT FELL AND STRUCK HIM ON THE RIGHT FOREARM. THIS CAUSED A LACERATION IN HIS FOREARM ABOUT 2 1/2"" LONG.