RS PRO Stainless Steel Hex Nut, DIN 439B, M4

The RS Pro A4 stainless steel locking half nuts have been designed for you to use when a nut has to be locked without clamping against another object.

Good resistance to corrosion
Value for money
Half the height of normal nuts

Use as locking nut
Use in manufacturing sectors such as the food industry
Use in marine applications

If A4 stainless steel is not what you are looking for, we also have the locking half nut in A2 stainless steel.

DIN 439

Please note IMDS is not a regulatory requirement and is currently not supported by RS PRO