Flange Nuts

Prime‑Line® flange nuts provide strong, reliable fastening with built‑in load distribution for a wide range of home repair and improvement projects. Designed with an integrated flange at the base, these nuts help spread clamping force evenly across the surface, reducing the need for a separate washer and improving connection stability. Ideal for automotive repairs, appliances, furniture assembly, lawn and garden equipment, and general mechanical applications, Prime‑Line flange nuts are intended for use with same‑size matching bolts or machine screws to ensure proper fit and dependable performance. Manufactured from quality materials for strength and durability, they install easily with standard hand tools and deliver consistent holding power in both indoor and outdoor settings. Trusted by DIY homeowners and professionals across the U.S., Prime‑Line flange nuts make fastening faster, simpler, and more secure. Prime-Line Size: 3.95" H x 2.8" W x 0.45" D