UL STYLE""MARGIN-TOP0PX; PADDING-TOP 5PX; PADDING-BOTTOM 5PX;"" 1/8"" THICK STEEL SPIDER (3-PRONG MOUNT BETWEEN BLADES AND HUB) 3 HEAVY DUTY SPRING STEEL BLADES EACH BLADE SECURELY RIVETED WITH THREE "" ROUND HEAD SOLID STEEL RIVETS AND ARE STATICALLY BALANCED HUB WITH 2 SET SCREW BOLTS IS SECURELY FASTENED TO BLADE SPIDER FACING AWAY FROM THE MOTOR MAKING THE SET SCREW MORE ACCESSIBLE