Feature(may vary by option.)

●M10 x 1.25 Exhaust Manifold Top Lock Flange Nuts
●These are hard to find M10x1.25 FLANGE lock nuts with only 14mm wrench/socket size.
●The small outside size (normal size is 17 or in some case already special 15mm) makes them highly desirable for tight spots, particularly on manifolds or turbo flanges.
●10mm FLANGE NUTS 5 PIECES FOR CHINESE SCOOTERS, ATVS, AND KARTS WITH GY6 150cc OR QMB139 50cc MOTORS,TAOTAO, JMSTAR, TANK, ROKETA, SUNL, JONWAY, GATOR AND MANY OTHERS
●Package Includes: 5 x FLANGE LOCK HEX NUTS

[M10]

[M16]

[M12]

Description

The nuts feature a self-locking design, so when they are fastened to a stud by hand, they will stop when they reach the "locking" portion. You will then need a 14mm wrench or socket to fasten it further, at which point it will "lock" in place. Self-locking nuts are especially useful for exhaust systems, where vibrations could cause regular, non-locking nuts to gradually loosen and come off.