Leaders in Lowering the Cost of Assembly

V6 Engine Timing Belt Cover Attachment

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Automobile Underbody Drive Train Support
Door Lock Attachment
Engine Torque Reaction Struct Bracket
Fender Rail Application
Ford Europe - Front Suspension Attachment
Front Brake Line Bracket to Vehicle Frame
Front Seat Belt Assembly
Front Seat to Seat Track
Front Stabilizer Plate Attachment
Hub and Bearing Assembly
Rear Axle Assembly
Steering Shaft
Tail Gate Strut Support Attachment
V6 Engine Timing Belt Cover Attachment


Aluminum Heat Sink
Black & Decker Workmate Workbench
Cable TV Hardware
Clothes Washer / Clothes Dryer
Cookware Handle
Dishwasher Leg Leveling Assembly
Door Roller Adjusting Bracket
Faucet Stem Assembly
Hedge Trimmer Blade
Hewlett-Packard 7350 Printer
Indoor and Outdoor Bleachers
Paint Scraper – Handle to Blade Assembly
Refrigerator Handle
Relay Valve Assembly
String Trimmer
Two-Cycle Outboard Motor


An automotive manufacturer was looking for a way to save money while attaching a stamped steel timing belt cover to an aluminum die-cast housing. The current application used nine fasteners per cover. Estimated volumes for the first year of production were 433,333 engines resulting in 3.9 million fasteners.


Replace the nine current machine screws with nine M6-1.0 x 15mm external TORX® Flange Head DUO-TAPTITE® fasteners. Cost savings were achieved due to the following advantages:
- TAPTITE® fasteners reduce component cost.
- Thread-forming screws support company fastener initiatives.
- TAPTITE® fasteners are supported by the manufacturers preferred suppliers.
- TAPTITE® fasteners are supported by the automotive company’s fastener engineering, supply base, and REMINC.

Customer Benefit

Current machine screw $0.0215/ea
Current machine screw with corrosion upgrade $0.0254/ea
Cost-savings to eliminate tapping operation (Additional savings are possible, if drilling operation is also eliminated)
DUO-TAPTITE® thread-forming screw $0.0266/ea
(Additional cost compared to current machine) $0.0012/ea
Net savings per attachment $0.0288/ea $0.0288 x 9 attachments/cover equals a savings of $0.259/cover
$0.259 x 433,333 estimated engines equals a savings of $112,233.00/yr