Combo pack of stainless steel, combination-drive sidewalk bolts and slotted-drive brass wood inserts from The Hillman Group. Hurricane bolts, or sidewalk bolts, are made of strong, durable stainless steel. They are ideal for installing hurricane panels to storefronts and sliding glass doors. Join wood, chipboard and plywood with brass wood inserts, which are especially useful in knockdown furniture. Simply drill a pilot hole, thread in the insert with a screwdriver or T-wrench, and use a machine screw or bolt to attach the other part.