Hi - Lo Screws - Washer Styles Available with Hi - Lo Sems

All sizes of Hi-Lo screws can be preassembled with a variety of
washer designs to perform added functions. Other washers
can be selected for specific purposes.

Tooth Lock Washer	Square Cone Washer	Twinseal Washer	Ramp Conical Washer
Provides locking action for fastener when attaching metal to plastic.	Dual action spring rate maintains a specific clamp load as it adjusts for a broad range of cold flow in plastic and low density materials.	TWINSEAL(r) WASHER Interlocking metal and neoprene washer provide a high pressure seal,	The off-center parabolic ramp provides greater load bearing capability, greater resistance to loosening and increased spring action.

Hi - Lo Screws SEALING AND LOCKING COMPOUNDS
A wide range of sealants can be applied directly to the threaded section of the screw or to the underside of the screw head to provide an effective seal against air, water, dust or
petrochemicals.Locking compound applied to the threads prevents the screw from backing out in severe vibration environments.

Hi - Lo Screws MATERIALS
Hi-Lo screws are manufactured of carbon steel which is then heat treated. Other materials, such as stainless steel, aluminum and non-ferrous, can be used for special applications.

Hi - Lo Screws FINISHES
Standard finishes such as plain, zinc, cadmium, nickel and
phosphate are available. Special finishes can be furnished upon request.