Chicago Screws with tooth

Das Kaltstauchverfahren ist eines der neuen Verfahren für die Druckbearbeitung mit weniger oder gar keiner Zerspanung
Metall. Es handelt sich um eine Verarbeitungsmethode, die die plastische Verformung von Metall unter der Einwirkung von
äußere Kräfte, und mit Hilfe von Formen wird das Metallvolumen umverteilt und in die Form gebracht
die gewünschten Teile oder Rohlinge. Das Kaltstauchverfahren ist am besten geeignet für die Herstellung von Standard
Verbindungselemente wie Bolzen, Schrauben, Muttern, Nieten, Stifte usw.

1. Definition & Primary Function

A Chicago Screws with tooth is a specialized variant of Chicago fastener featuring:

• Serrated flange teeth (typically 8-16 teeth)

• Two-piece threaded assembly (male screw + female barrel)

• Permanent-lock design that bites into materials when tightened

Primarily used for vibration-proof fastening in high-stress applications where standard Chicago screws might loosen.

2. Key Components

A. Male Component

• Slotted or hex drive head

• Machine threads (usually #10-24 or 1/4″-20)

• Hardened steel construction

B. Female Barrel

• Toothed flange (teeth angle: 30-45°)

• Internal matching threads

• Barrel length options: 1/4″ to 1″

3. Unique Features

• Self-locking teeth: Cut into material surface when torqued

• Anti-rotation design: Prevents barrel spinning

• Material-gripping capability: Works with:

  • Leather (8oz+ recommended)

  • Wood (hardwoods preferred)

  • Plastic (ABS, polycarbonate)

  • Composite materials

6. Industrial Applications

• Motorcycle/ATV components (vibration-prone areas)

• Industrial equipment panels

• Heavy-duty leather goods (saddles, tactical gear)

• Outdoor signage (wind-resistant mounting)

7. Installation Guide

1. Drill pilot hole (match barrel diameter)

2. Press barrel teeth into material surface

3. Thread screw until teeth fully engage

4. Final torque: 1/8 turn past firm resistance

8. Removal Considerations

• Requires destructive extraction in most cases

• May leave permanent tooth marks

• Replacement barrels often needed

9. Industry Standards

• ASME B18.6.4 (dimensional compliance)

• MIL-F-18866 (military binding barrels)

• ASTM F468 (nonferrous fasteners)

10. Purchasing Specifications

When ordering, specify:

• Thread size (e.g., #10-24)

• Barrel length

• Tooth configuration

• Material grade

Chicago Screws with tooth provide superior holding power for critical applications where vibration-induced loosening cannot be tolerated. Their semi-permanent nature makes them ideal for final assembly situations.