Quick view Speedglas 3M™ Speedglas™ 43477 9100 Series Hard Hat Adapter 3M Speedglas 06-0014-00NR Hard Hat Adapter helps attach the Speedglas 9100 Series welding helmets to your hard hat. All mounting hardware is included. Package of 1For Use With: Speedglas 9100 series $66.99 Add to Wishlist Add to Cart