Shree Ramanath Enterprises Provides One Of The Best Anchor Bolt Fixing Service in Whitefield, electronic City, Yelahanka, jayanagar, sarjapur road, HSR layout, Peenya. Screw the washer to the top of the anchor bolt, ensuring it is flush against the top of the bolt. Then insert the anchor bolt into the pre-drilled hole. You can hammer the nut to ensure the anchor bolt hits the bottom of the hole.