Small D Rings that fix into the frame with pan head screws, sold separately. Alternatively, fix with bifurcated or two-part rivets on backing board.
Small 1 Hole D Ring Bronze Plated 100 pack
D Ring Picture Hangers with Screws - 1000 Pack - Bulk D Rings - Pro Quality d-Rings - Picture Hang Solutions
FramePac D-Ring Single Hole Picture Hangers with Screws [100 Pack] - (AKA Picture Hanging Hardware, Picture Frame Hanger, Picture Hanger Hooks, Picture Hooks for Hanging) : Everything Else
D Ring Mini ( 500 ) D Rings - Abbey Glass High Quality Framing Supplies
Welded D-Ring - Nickel Plated Steel
Best Value Single Hole D-Rings Zinc Plated
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OOK 75 lb. Large Steel D-Ring Hangers (2-Pack) 50207 - The Home Depot
Small 1 Hole D-Ring - Nickel Plated
Frame Hardware LION Picture Framing Supplies Ltd
Solid D Ring Nickel Plated, available in 2 finishes nickel and brass and in pack sizes of various quantities.
Solid D Nickel Plated 1 Hole Single D Rings
Fashionable aluminum d ring welded d ring from Leading Suppliers