Hillman Grade 8 Split Lock Washers 3/4-Inch, Yellow Zinc Hardened | Locks against vibration, spring ring bites in, high spring strength, fits 3/4 inch bolts, structural, corrosion-resistant

Product Description Hillman Split Lock Washers keep threaded fasteners from working loose under vibration and repeated movement. Sized for a 3/4 inch bolt, the washer sits under a nut or bolt head and uses spring tension to keep constant pressure on the joint, so the fastener stays tight in equipment, machinery, and assemblies that shake or move in service. The split ring is the working feature: as the fastener is tightened, the ring compresses flat, and its two sharp cut ends dig into both the nut and the mating surface. Those biting ends resist the rotation that normally backs a nut off over time, giving a simple, reliable lock without any added parts or adhesives. Made from grade 8 hardened steel with a yellow zinc dichromate coating, the washer offers high spring strength well beyond a standard lock washer, along with added corrosion resistance and a distinctive gold tone. That makes it the right companion for grade 8 and other high-strength bolts torqued to heavy clamp loads. Use these lock washers for high-strength grade 8 bolted joints in structural steel, heavy equipment, and machinery where strong, vibration-resistant locking keeps critical connections tight. This pack provides a ready supply for equipment, machinery, and vibration-prone fastening projects around the home, garage, and job site. From the Manufacturer This split lock washer provides a circular bearing surface with offset split ends which help bite into the mating material to provide a locking feature when tightened beneath a nut. It is round with a hole in the center and can be used where loosening from corrosion or vibration is a concern. Lock washers are commonly used in any application using a bolt where two pieces are being drawn together.

• LOCKS AGAINST VIBRATION: This split lock washer keeps a nut or bolt from working loose under vibration and movement, using spring tension to hold the fastener tight so bolted joints stay secure in equipment and moving assemblies.
• SPLIT SPRING DESIGN: Sized for a 3/4 inch bolt, the split ring spreads open under load and its sharp cut ends bite into the nut and the mating surface, resisting the back-off that loosens fasteners on machinery and vibrating equipment.
• GRADE 8 HARDENED STEEL: Made from grade 8 hardened steel with a yellow zinc dichromate finish, the washer delivers the high spring strength and corrosion resistance needed to lock high-strength bolts in demanding structural work.
• STRUCTURAL AND HEAVY USE: Ideal for high-strength grade 8 bolted joints in structural steel, heavy equipment, and machinery where strong, vibration-resistant locking is essential to keep critical connections tight under load.
• TRUSTED HILLMAN QUALITY: Hillman supplies dependable fasteners and hardware that homeowners and pros rely on for everyday projects. Keep a supply of these washers on hand for assembly, mounting, and repair jobs around the home.