Why use a quarter turn
Why use a quarter turn instead of a threaded bolt / nut
¼ turn fasteners | Threaded bolts/nuts |
---|---|
Frequently operated - repeatable performance | Seldom operated because serviceability is not a design factor. More structural in nature, limited life if operated often |
Quick accessibility – allows fast removal of access panels | Disassembly is time consuming and usually infrequent |
User convenience, simple to operate | More difficult to operate due to multiple turns necessary to install and remove |
Controlled joint preload, but limited ability to accept variations in material thickness | Inconsistent compression of panel gasket but capable of handling large grip ranges |
Low installed cost for new generation of high speed assembly type (i.e. snap-in rivetless types) | Installation is simple but time consuming |
All fastener components captivated | Generally not captivated – subject to being lost or misplaced |
Vibration resistant | Relies on thread engagement – subject to loosening under vibration |
Reduced service / maintenance time | Increased service / maintenance time |
More expensive but adds value to finished product | Less expensive (4 to 5 times), but readily offset on applications with frequent service requirements |