Seatylock X-LOCK Axle Nuts — 3/8″-26 TPI Security Wheel Nuts (Pair)

Stop grab-and-go wheel theft on bikes with nutted axles. These X-LOCK security nuts replace standard 3/8″ axle nuts and tighten using the included proprietary key tool. Low-profile, tamper-resistant heads deter thieves in seconds—perfect for commuters, campus bikes, and e-bikes with bolt-on wheels.

What’s included

• 2× security axle nuts — 3/8″-26 TPI (front & rear)

• X-LOCK key tool (keep with your repair kit)

Fit / compatibility

• For nutted axles threaded 3/8″-26 TPI (common on many BMX, single-speed, coaster brake, and some e-bikes).

• Not compatible with quick-release skewers or metric M10×1 axles, and not for thru-axles (12 mm).

• If unsure, check the thread spec on your existing nuts or bring one in to match.

Details

• Hardened steel with weather-resistant finish

• Tamper-resistant, low-profile design

• Quick install: remove old nuts → fit wheels → tighten with key

Condition: New in retail package (see photos)