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Secure, Fast Installation Combining an advanced fastener design with the latest in easy-to-use, ergonomic installation tooling, the BobTail system delivers a strong connection and sets a new standard for ease of installation.
Quick Visual Inspection
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Pintail-less design means reduced noise, no waste, and improved corrosion resistance
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Visual evidence of successful installation provided by swage indicator (if any swage The installation tool is applied to The pin is inserted into the
At a predetermined force, the anvil
the
When swaging of the collar into
dots onpin collar flange are it is installation anannular pull grooves. the tool to to swage the collar into pin lockgrooves is complete, the tool prepared hole, and the collar iscrossed, The is inserted into the The tool When is applied At abegins predetermined force, When swaging of the collar is The activated, a puller in isthe nose to lockgrooves. ejects fastener spun the prepared hole, and the annular pull grooves. When the thethe anvil begins toContinued swage into pintheswaging lockgrooves is intothe indication apin.fullinto swage) installation tool applied Atpin’s a predetermined force, the anvil When ofand the releases collar thetool Theonto pin isof inserted the assembly the pin into tool, thepin’s collar into and pin, puller to complete sequence. collar is spun onto theispin. is activated, a puller inWhen thethe nose theswaging collar into the complete, the tool ejects annular draws pull grooves. the tool begins elongates to swage the collar pin lockgrooves isthe complete, the tool prepared hole, and the collar assembly draws the pin into the lockgrooves. Continued the fastener and releases causing the swaging anvil to press on developing precise clamp. ■ Collar is activated, a puller in the nose the pin’s lockgrooves. Continued ejects the fastener and releases the material into the lockgrooves spun onto the swaged pin. tool, causing the swaging anvil swaging elongates theinstallation puller toofcomplete the the collar, drawing up any sheet gap. to swaging elongates thethe collarcollar and pin, on a typical puller to complete sequence. *Based 5/8" the grade 8 fastener forms a permanent, vibration-resistant assembly draws the pin into the tool, press on thethe collar, drawing uponany and pin, developing precise sequence. causing swaging anvil to press developing precise clamp. “Dots” on the BobTail collar indicates The BobTail System delivers asheet lightening-quick installation cycleclamp. time for greater productivity – as fast as two seconds*. a full connection. gap. the collar, drawing up any sheet gap. *Based on a typical installation of 5/8" 8 fastener when at least onegrade is crossed by the This quick cycle is due, in part, to the short time required to apply the tool to the pin andswage initiate the installation ■The Low-swage technology for faster, swage –anvil. BobTail Systemallows delivers a lightening-quick installation cycle time for greater productivity as fast as two seconds*.
cycle. Once the operator engages the trigger, the swage and eject sequence is programmed to complete the cycle lighter tooling with parts thatain last longer.to the short The BobTail System delivers lightening-quick installation time for as fast two seconds*. This quick cycle is due, part, timecycle required togreater apply productivity the tool to– the pinas and initiate the installation without worker input.time required This quickany cycleadditional is due, in part, to the short to apply the tool to the pin and initiate the installation cycle. Once the operator cycle. Once the operator engages the trigger, the swage and eject sequence is programmed to complete the cycle For Oversized To optimize clamp, hardened washers such as ASTM F436, DIN 6916 or 14399-6 arethe recommended for use with holes and slots, along with good bolting practice. engages theHoles: trigger, the swage and eject sequence is programmed toEN complete cycle without anyoversize additional worker input. without any additional worker input. *Based on a typical installation of 5/8” grade 8 fastener
HuckBolt HuckBolt
Installed Gap Comparison
Standard Bolt Standard Bolt
INSTALLED GAP COMPARISON In addition, Huck BobTail lockbolts are not subjected to torsion In addition, Huck BobTail not subjected torsion during installation, so they lockbolts can safely are be taken to higher to preload during installation, so they can safely be taken to higher preload values than conventional bolts, resulting in a much tighter joint. values than conventional bolts, resulting in a much tighter joint.
COLLAR
NO GAP
The swaged collar collar forms The swaged forms overthe thelock lock thread, thread, over and eliminates the and eliminates thegap. gap.
DIBt APPROVED (German national technical approval) • BobTail has been approved in both static and dynamic applications • Retorque 25, 000/ retension of an installed Huck BobTail is not necessary BobTail
C L A M P ( lb f )
ail
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Bobtail installation sequence Bobtail installation sequence BOBTAIL INSTALATION SEQUENCE
GAP
NUT
Regularnuts nuts and Regular andbolts bolts havegap, gap, which which allows have allows loosening by by vibration. forfor loosening vibration.
Huck lockbolts are a precision engineered two-piece fastening system. Bobtail can be installed in intensive vibration environments. They provide a direct metal to metal contact which eliminates the transverse vibration often found in conventional nuts and bolts. Huckbolts deliver superior joining, shear and tensile strength for an unmatched fastening solution.
Transverse Vibration Comparison 14mm class 10.9
20, 000
000 THE15,BOBTAIL FASTENER CAN BE REMOVED
10, 000 The collar cutter allows fast and easy removal – with a quick, simple change of tool attachment from the installation nose to the 5, 000 collar cutter. Nut and Bolt
As the UK’s largest distributor of the Huck brand, Star Fasteners have a This verychart closeshows relationship Arconic and isare proactive in nut and with bolt clamp scatter much wider compared designing and developing new ideas. With many added value decays to BobTail, and that once vibration begins, clamp load quickly services and years of product application Star with the with conventional nuts and bolts, whileknowledge, it holds constant Fasteners are able to offer a unique customer experience. BobTail.
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APPLICATIONS
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150 T I ME ( se c . )
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Engineered for a wide range of applications including, truck and trailer, chassis, steel framed towers, construction, bridges, gantries, steel framed / modular buildings, solar, the possibilities are endless!
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Telephone: +44 (0) 115 932 4939 E-mail: sales@starfasteners.co.uk
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