Square Cone Lock Washer

Split lock washer sems are preferred when the sems are used with hardened bearing surfaces since the.

Square cone lock washer.

The square cone square dome washer provides greater spring return and tension at minimum torque tolerances and has the strength to support maximum torque loading. 18 8 stainless steel washers have good chemical resistance and may be mildly magnetic. They accept a high clamp load while still maintaining spring action. Approximate tightening torques for machine screw sems with tooth lock washers or square cone square dome washers customary dimensions expressed as inch pounds grade 2 screw material.

Material codes steel zinc sz stainless steel ss all. Length is measured from under the head. Square washers fit into slots and channels and have flat sides to keep them from rotating. They prevent loosening from small amounts of vibration.

All are passivated for added protection against oxidation and corrosion. Apex fasteners square cone sems square cone sems offer compensation against vibration and thermal cycling. The square cone washer provides locking action while avoiding damage to the mating surface. Split ring lock washer sems metric.

They are wider and thicker than most round washers making them good for distributing heavy loads. Split ring lock washer sems inch. Also known as square cone sems screws the washer rotates freely but is permanently attached. They may be mildly magnetic.

Besides the single flat washer sems and the double washer sems we have the single split lock washer sems the single external tooth lock washers sems the single internal tooth lock washer sems and the single square cone lock washer sems. Tests have shown that a square cone square dome washer will achieve the same clamp load as a standard conical washer at 30 less torque. A curved washer protects delicate surfaces while providing constant tension. This fastener is ideal for circuit board applications as well.