Do Animals Think?

Ipetboom 60pcs Stainless Metal Petal-Shaped Nuts Assortment M4 M5 M6 M8 Hand-Twist Butterfly Nuts Durable Fasteners for Machine Fixing and Industrial Use

PRETYZOOM 20pcs 5/16-18 Inch White Zinc Plated Butterfly-Shaped Nuts Hand Tighten Fastener Screws Carbon Steel Nuts for Industrial and Mechanical Use

PRETYZOOM 3pcs M10 Threaded Hand-tightened Butterfly Nuts Anti-Skid Machine Hardware Fasteners for Industrial and Home Use Random Style

NUOBESTY 50pcs Carbon Steel Zinc Plated Butterfly-Shaped Fastening Nuts 1/4-20 Thread Hand-Twist Machine Nuts for Industrial Fixing Applications

Ipetboom 20pcs 5/16-18 Butterfly Wing Nuts White Zinc Plated Hand-Tighten Fastener Parts for Mechanical and Industrial Use

Cabilock 3pcs M10 Stainless Metal Hand-Twist Fastener Butterfly Nuts Machine Hardware for Industrial Use Random Style

NUOBESTY 50pcs Carbon Steel 1/4-20 Thread Butterfly-Shaped Fastening Nuts Zinc-Plated Durable Hand-Twist Nuts for Industrial Assembly

BolznWiz 20PCS 3/8-16 Wing Nuts, Stainless Steel 18-8 (304), Butterfly Nut for Industrial & Home Use