Find the right part faster
Multiple models matched. Select your model to confirm fit.

Lawn mower blade retaining bolt with washer.

Husqvarna hex head blade bolt. 3/8-24 x 1 -3/8.

Blade retaining bolt, 3/8-24 x 2.50

Blade bolt

Blade Bolt-3/4-16

Bolt-hex hd blade

Bolt-hex hd blade
A single loose or corroded blade bolt can ruin a cutting deck. Cub Cadet blade bolts must grip with exact torque to keep your deck balanced and safe. Repair Clinic supplies genuine OEM fasteners engineered to the mower's specifications—not generic hardware-store substitutes.
Browse our full range of Cub Cadet lawn mower blade bolt parts by entering your model number to get the exact size and thread pitch your deck requires.
Vibration from blade imbalance or a bent spindle causes fasteners to work loose. Always replace worn blade bolts with OEM parts—they're hardened to resist vibration fatigue. Also check spindle runout; a warped spindle will loosen any bolt eventually.
Blade bolt torque varies by deck size and spindle type—typically 35–50 ft-lbs for residential mowers. Consult your Cub Cadet manual or enter your model number on Repair Clinic to confirm the exact specification. Over-tightening strips threads; under-tightening causes blade sag.
Check blade bolts monthly during mowing season for tightness and corrosion. Replace them annually or whenever you sharpen blades. OEM Cub Cadet fasteners resist rust better than aftermarket alternatives and maintain proper deck balance longer.
Universal bolts may fit physically but often lack the hardness and precise thread grade Cub Cadet engineered for your deck. OEM parts ensure model-specific fit and performance and help ensure your spindles rotate concentrically—critical for clean, even cutting without vibration.


Ensure your Cub Cadet lawn mower blades are securely attached with genuine OEM blade bolt replacement parts from Repair Clinic. Proper blade bolts are required for safe and efficient mowing, preventing the blade from coming loose during operation. Our model number lookup helps you find the exact blade bolt needed for your Cub Cadet mower. Enjoy the convenience of same-day shipping, No-Hassle 365-Day Returns, and our Price Match Guarantee. If you need installation guidance, visit our Lawn Mower Repair Help page or find a variety of Lawn Mower Parts to ensure all your repair needs are met.
On Cub Cadet lawn mowers, look for the model number on a label attached to the deck frame, engine housing, or another visible area of the mower. Clean away grass or dirt if the label is hard to read, and copy the letters and numbers exactly, including any hyphens. Enter that model number in the Repair Clinic search bar to narrow the full catalog to parts that fit your specific Cub Cadet mower. Using the complete model number helps match every associated part to the correct unit, not just the part you are replacing. It is the quickest way to be sure the part fits before you order.

The right screws, bolts, and nuts keep panels secure and components tight during repairs. Repair Clinic stocks OEM fasteners for a wide range of appliances and equipment, along with reference material for the more specific applications. Use the model number lookup to confirm the exact fastener for your unit.

Repair Clinic has five ways for you to stop your lawn mower from leaking gas. Before we get to those, let's review how the gasoline you pour into the tank powers the mower.

Why does your lawn mower battery keep dying? Repair Clinic has done the research and this article will provide some answers, starting with what a battery's purpose is on a gas-powered lawn mower.

What's causing that black smoke to billow out of the engine? There are three likely reasons and they are all related to how a gas-powered lawn mower engine operates.