3 Pack 63607 Rotary Cutter Blade Bolt Kit W/Nuts & Lock Washers Compatible with Bush Hog Rotary Cutter Blade 2610 2615 3610, Replace 802-263C 802-277C 7919 252BH 20322

What It Is

This is a 3-pack of bolt kits (each includes a bolt, nut, and lock washer) designed to secure the rotary cutter blade on Bush Hog and compatible medium-duty rotary cutters. It’s for replacing worn or missing hardware on models like the 2610, 2615, and 3610.

Fitment & Compatibility

Before buying, confirm three things:

• Bolt size: These use a 5/8”-18 x 1-3/4” bolt. Measure your existing bolt length and thread pitch—if yours is shorter or a different thread, it won’t fit.
• Deck type: Fits Bush Hog 2610 (6-ft), 2615 (7-ft), and 3610 (6-ft) rotary cutters. Also fits aftermarket blades that require the same bolt pattern (e.g., 802-263C, 802-277C, 7919, 252BH, 20322).
• Washer style: Lock washer is included, but if your blade assembly uses a separate flat washer, you’ll need to reuse or buy one separately. Check your existing bolt head for a grade mark (usually 5 or 8)—these are Grade 5, fine for most mowing, but heavy commercial use may need Grade 8.

Key Things to Know

• Installation is straightforward: Remove old bolt, clean threads (use anti-seize if rust-prone), then torque to 90-110 ft-lbs. No special tools beyond a socket and torque wrench.
• Not for zero-turn or lawn tractors: These are for 3-point hitch or pull-behind rotary cutters, not small residential mowers.
• Lock washer is included, but not always needed: Some OEM setups use a nylon lock nut instead. If your nut has nylon, this kit’s nut is all-metal—still fine, but torque it properly.
• Grade 5 vs Grade 8: Grade 5 is adequate for most mowing. If you hit stumps or rocks often, upgrade to Grade 8 bolts (sold separately).

Should You Buy It

Buy this if you own a Bush Hog 2610, 2615, or 3610 rotary cutter and need to replace worn or missing blade bolts—especially if you want a ready-to-install 3-pack at a fair price. Skip it if you need Grade 8 hardware for heavy abuse, or if your cutter uses a different bolt length or thread.