Série d'écrous
Hex, square, flange, nylon-insert, lock and rivet nuts in metric coarse and fine thread. Manufactured to Class 8 and Class 10 strength grades with zinc plated, hot-dip galvanized or plain finishes.

Écrous hexagonaux
Standard hexagon nuts in metric coarse and fine thread, produced to Class 8 and Class 10 strength grades. Used with hex head bolts and studs throughout general engineering and structural assemblies.

Écrous carrés
Square nuts with a wider bearing face than hex nuts and four flat sides for a wrench. Preferred in timber connections, channel and bracket assemblies where the nut must not rotate.

Écrous à embase
Flange nuts with an integrated flange that spreads the clamping load and removes the need for a separate washer. Serrated flange versions resist loosening in vibrating assemblies.

Écrous en nylon
Nylon-insert lock nuts with a captive nylon collar that grips the bolt thread and resists vibration loosening. Effective across a wide temperature range and reusable for a limited number of cycles.

Écrous freinés
Prevailing torque lock nuts that hold their position under vibration. All-metal types need no nylon insert and suit higher-temperature applications; nylon-collar versions are also available.

Écrous rivetés
Rivet nuts (blind threaded inserts) that create a permanent load-bearing thread in thin sheet metal from one side only. Available in steel, stainless steel and aluminium, with knurled or plain bodies.