Compact replacement triangle knob and screw bolt for lawn mower handles, designed to restore secure hand adjustment and fastening where the original knob is missing or damaged. Simple to fit, easy to use, and made from durable black plastic for long service in outdoor conditions. Key benefits Restores function quickly: replaces worn or broken triangle handle knobs so you can tighten or adjust mower handles and attachments by hand. Comfortable grip and control: triangular shape gives a positive grip for easy turning without tools. Ready to install: supplied as a complete replacement assembly with matching screw bolt for straightforward swap out. Durable material: molded black plastic resists cracking under normal outdoor use and is lightweight for simple handling. Reliable fastening: designed to hold handle adjustments and small attachment points securely during regular use. Important attributes Function: triangleshaped hand knob used to tighten or secure handle assemblies, height adjustments, and small mower attachments. Compatibility: intended for use on lawn mowers and similar garden equipment that use a triangle knob and screw bolt as the handle fastening method. Material: black plastic knob with a matching metal screw bolt included for installation. Size and fit: compact triangle profile sized for hand operation. Confirm thread size and fitment on your equipment before installation. Performance: handtightenable for quick adjustments; provides a secure hold under normal operating conditions. Typical use scenarios a cracked or missing handle knob on a push lawn mower to restore safe, adjustable handle height. Swap a worn knob on a lawn tractor or garden cart mounting point that uses a triangle hand knob for fast disassembly and reassembly. Install as a replacement on a grass catcher or mulching attachment where a handtightened knob is required for routine removal and cleaning. Installation tips Remove the old knob and bolt, check thread direction and diameter, then fit the replacement screw bolt and handtighten the triangle knob until snug. Do not overtighten with tools to avoid damaging the plastic knob. Verify compatibility with existing threads before final tightening. Practical, straightforward replacement that gets your mower back to usable condition with minimal effort and no special tools.