
Locknuts
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From the manufacturer Hard-To-Find Fastener We stock a wide variety of fasteners ideal for many applications around the home, farm, business, or automotive industries. Most of our fasteners have a light zinc plating over steel giving a more rust resistant finish. We also sell coated and stainless products for additional rust resistance. We stock many grades of fasteners ranging from low carbon steel on up to hardened, heat treated steel. Not all fasteners are applicable for all applications. Be certain to test thoroughly and consult a licensed builder or engineer before relying on these fasteners for any situations where failure would result in damage to property or person. Anchors Hard-to-Find Fastener carries a wide variety of anchors for use in masonry, drywall, wood, and other applications Hex Bolts Hard-to-Find Fastener carries hex bolts in A307, Grade 5, Grade 8, Metric 8.8, and Metric 10.9, in zinc, galvanized, and stainless steel finishes Carriage Bolts Hard-to-Find Fastener carries carriage bolts in A307 and Grade 5 in zinc, galvanized and stainless finishes Machine Screws Hard-to-Find Fastener carries flat head, hex head, pan head, and many other machine screws in metric and standard sizes in zinc and stainless steel finishes Hex Nuts Hard-to-Find Fastener carries a wide variety of hex nuts in metric and standard sizes for any application in zinc, galvanized, and stainless steel finishes Washers Hard-to-Find Fastener carries a wide variety of washers in metric, standard, USS, and SAE sizes in zinc, galvanized, and stainless steel finishes Sheet Metal Screws Hard-to-Find Fastener carries a wide variety of sheet metal screws in hex, pan, flat, painted, and other heads in zinc and stainless steel finishes. Wood Screws Hard-to-Find Fastener carries wood screws in phillips, square, and star drive for interior and exterior applications Specialty Hard-to-Find Fastener carries a wide variety of specialty products including hitch pins, cotter pins, tension pins, hanger bolts, spacers, furniture connector bolts and many more specialty items. Upgrade your fastening solutions with Hard-to-Find Fastener’s yellow zinc lock nuts. Ensure maximum fastening strength and reliability with Yellow Zinc Grade 8 Lock Nuts. Designed for demanding environments, these nuts feature a locking mechanism that resists loosening under vibration and torque. The yellow zinc finish provides superior corrosion resistance, making them perfect for automotive, industrial, and heavy-duty applications. Built from Grade 8 hardened steel, these lock nuts deliver exceptional durability and performance. Choose from multiple sizes and pack quantities to meet your project needs. Not all fasteners are applicable for all applications so be certain to test thoroughly and get the opinion of a licensed building or certified building or structural engineer before relying on these fasteners for any situations where failure would result in damage to property or person. Premium Strength: Manufactured from Grade 8 hardened steel for superior durability and high-torque applications Secure Locking Design: Built-in locking feature prevents loosening caused by vibration, shock, or heavy loads Thread Design: The threading provides higher shear resistance for secure fastening in joints Corrosion Protection: The zinc plated yellow finish coating delivers corrosion resistance to rust and wear, ensuring long-lasting performance and a clean, bright appearance—perfect for indoor and light outdoor environments Versatile Use: Ideal for automotive, industrial, and heavy machinery projects requiring maximum fastening security.