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Plastite® Fasteners Technical Data
Plastite thread-forming screws are used for fastening plastics.
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- Tri-lobular thread form
- 45 degree thread profile for engineered and thermoset plastics
- 48 degree thread profile for thermoplastics
- Steep helix angle
- Twin or single helix
- Diameters for M0.82 to M8.51 (#000 to 5/16")
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- Resists vibration loosening
- Minimal radial stress reduces boss failure
- Eliminates inserts
- Generates strong mating threads
- Eliminates tapping costs
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PT® Screws
PT Screws are thread-forming screws for assembling thermoplastics.
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- 30 degree angle profile
- Sizes from M1.5 to M10
- Core recess at minor diameter
- 8 degree helix angle
- Symmetrical threads
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- Allows thinner bosses to be designed
- Reduces radial stress
- Maximizes clamp load retention
- Resists relaxation and vibration loosening
- Lowers installation torque
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Duro-PT® Screws
Duro-PT Screws are thread-cutting screws for thermoset plastics.
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- Shank slot
- Sizes from M2.2 to M8
- Asymmetrical threads
- 30 degree flank angle
- 4 degree helix angle
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- Eliminates the need for supplemental locking devices such as adhesives or inserts
- Maintains clamp load retention
- Offers high strip-out torques
- Resists vibration loosening
- Reduces stress on bosses
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Pushtite® Fasteners
Pushtite screws are designed to be installed into plastics by pushing them into place.
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- Barbed thread profile with helix allows fastener removal
- Available with or without drive system
- Diameters from M0.82 to M8.51 (#000 to 5/16")
- Thread-rolling fastener
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- Presses into place
- Resists pull-out
- Reduces strip-out
- Speeds assembly operations
- Reduces boss failure
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Powergrip® Fasteners
Powergrip fasteners are ideal for attaching soft materials--such as plastics--to sheet metals.
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- Serration and undercut formed under shoulder
- Knurled shoulder
- Reduced distance between last thread and bottom of shoulder
- Sizes from M3 to M8 (#4 to 5/16")
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- Eliminates crushing of plastic material
- Provides tight joint
- Resists vibration loosening
- Eliminates need for nut assembly
- Increased strip-out torque
- Positive thread engagement
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PLASTORX® Assemblies
PLASTORX metal fasteners can be molded into plastic or rubber components.
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- Broad bearing surface
- Available as an assembly or separate fastener
- TORX configuration for rotation resistance
- Threaded shaft for nut member
- Flange on top of the head enhances performance
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- Provides maximum pull-out resistance
- Offers high rotation resistance
- Reduces potential stress risers
- Can be incorporated into carrier strips to reduce assembly time and costs
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Sems Fasteners
Sems threaded fasteners are assemblies that combine fasteners with washers, collars, specialized stampings, or other components.
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- Wide variety of component and fastener styles available
- Sizes from M1 to M12 (#00 to 5/8")
- Single component assembly
- Components are captivated onto the fastener
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- Eliminates hand assembly of washers
- Increases production; ensures product integrity
- Assures proper fastener and washer match
- Simplifies purchasing and inventory control
- Eliminates lost, dropped, or forgotten washers
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PERMA-NUT® Fasteners
The PERMA-NUT fastener combines the functions of a semi-tubular rivet and a nut.
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- Handles a wide range of material thicknesses
- Comes standard with ribs
- Available in a variety of metals and thread sizes
- Inserted by standard presses or rivet-setting machines
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- Acts as a nut plate, nut plate and pivot bearing, nut plate and spacer, nut and busing, or nut and rivet
- High push-out resistance
- Solid rotational resistance
- Can be used in thin materials
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CREST CUPTM Fasteners
CREST CUP fasteners are sems spring-washer assemblies.
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- Wide variety of head and thread styles
- Pre-assembled fastener and washer combination
- Sizes from M2 to M10 (#2 to 5/16")
- Burr-free bearing surface
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- Provides maximum joint integrity
- Retains spring returnability
- Reduces tension loss
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