Locknut, 3", Heavy Duty, Steel With Zinc Finish

AMFICO Industrial SPEC-gradeTM Alloy Steel Bonding LOCKnuts are precision machined from solid alloy steel bar stock for superior strength, dependable bonding, and secure installation. Designed to be fully torqued without cracking or deforming, these locknuts deliver durable performance in demanding industrial applications. They feature an electro zinc plated chromate finish, with a galvanized option available, and come in sizes from 1/2 in. to 4 in. Made in the USA, they comply with UL 514B, UL 467, NEMA FB1, Federal Standard A-A-50553, and RoHS requirements.