Also called Lashing Rings are available in Drop Forged C1040/1045 Carbon Steel, Self-Colored manufactured in accordance with ASTM A668, Class D specifications. D-Ring Blanked Clips are Cold Rolled C1020 Carbon Steel, Self Colored. D-Rings are used to secure or bind, as with a rope, cord, or chain. D-Rings are fasteners for hold-downs on heavy equipment parts, bulldozers, trucks, etc. Sizes carried in stock include 3/4” and 1” straight and bent.