Brass Extension 15mm M&F BSP Thread x 40mm Long Easily extend your threaded connection with this cost effective solution AS3688 Compliant High Quality DR Brass Watermarked ApprovedBrass fittings comprise a wide range of pipe attachments - threaded fasteners and flare fittings.,Brass Extension 15mm M&F BSP Thread x 40mm Long Easily extend your threaded connection with this