Dog Collar Spikes-Rivetback-Nickel Plated 10 Pack by Tandy Leather International Save Liquid error (product-badge line 42): -Infinity% $2.99 SKU 1310-00 1/2" (13 mm) - $2.99 1-1/4" (32 mm) - $4.29 1/2" (13 mm) 1-1/4" (32 mm) Size 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Easy to attach. Nickel plated all-purpose spikes. Rivetback.1/2": Set with setter #8109-00.1-1/4": Set with setter #8111-00.