Kruvid

Self-locking hex nut (lock nut) with nylon ring to prevent loosening due to vibration etc. because of. ISO 10511 replaces DIN 985; Wrench sizes 16, 18 and 21 are now designed for M10, M12 and M14 respectively.
Type of measurements - Metric
d Thread diameter - M16
Thread pitch - 2.00 mm
Wrench/spanner size - 24 mm
mHeight - 10.5 mm
hTotal height - 16 mm
Material - Steel
Surface treatment - Galvanized
Quality - 8.8
DIN standard - 985
ISO standard - 10511