brass anchor bolts advantages:larger bearing area. Acts as a socket. Fixture can be removed and replaced. Suitable for solid brick, light concrete, hollow core concrete chambers and timber. Internal tapering to enable the anchor to expand and to self lock the suspension rod into position. The body in knurled for improved performance. applicationscan be used in scaffolding, plating, ventilating etc. Suitable for solid brick, light concrete, hollow core concrete chambers and timber.