EDITOR ’ S CHOICE SHAKE , RATTLE AND ROLL
STAR FASTENERS
Vibration has met its match with Huck ® Fasteners
Swaged HuckBolt direct metal to metal contact compared with standard nuts and bolts
The Huck brand means one thing - reliably strong joints , even in the most extreme environments . They provide consistent , extremely-high shear and tensile strength and are proven to hold their clamp , even with constant vibration .
HUCK FASTENERS DO NOT SHAKE LOOSE
Huck fasteners are reliable performers in mobile and permanent structures and are used widely in the quarrying , mining , construction / demolition and recycling industries , as well as the concrete and asphalt production industries .
They are regularly installed in crushing , screening , aggregate washing , scrubbing / rinsing ( fine material Screw Washers and wet processing equipment ) conveyors ( belt , roller , chute , wheel , vibrating ), hoppers , feeders , mobile aggregate processing plants and heavy equipment – in fact anywhere where vibration is an issue and structural integrity and reliability are paramount .
BobTail BobTail BobTail ® ® ® ® installs with lightweight ergonomic
Huck technology delivers one-time fastening that is completely maintenance-free , unrelenting in their performance , Huck fasteners are the future for manufacturers of tooling . all types of equipment used in demanding high-stress , high-vibration environments .
No re-checking . No re-torquing . No re-tightening , saving time , money and labour - reliable fasteners with outstanding performance .
HOW DIRECT-TENSION HUCKBOLTS WORK
HuckBolts are precision engineered twopiece fasteners that , once installed with direct-tension swaging , maintain clamp force .
There ’ s no fastener , more vibration-resistant fastener than a Huck LockBolt . Even in the most vibration-intensive environments , Huck fasteners maintain their structural integrity for the life of the joint .
HuckBolts are not subjected to the twisting force of torsion that a torque wrench applies to a conventional bolt , they can safely be taken to higher preload values , resulting in higher clamp , higher strength and the
BOLT
NUT
NUT
GAP
Two-Piece Two-Piece HuckBolts HuckBolts ® ® ®
STANDARD NUT & BOLT
Two-Piece HuckBolts ®
Two-Piece HuckBolts ®
BobTail ®
Huck ’ s swaged-on fastener with no break-off pintail . Corrosion resistant and
C50L ®
Superior vibration resistance and durability for heavy-duty applications . Meets or exceeds all ASTM A-325
C50L C50L ®
C50L ® ® ®
highest level of vibration resistance of any fastener . HuckBolts use direct-tension to deliver consistent clamp ; spreading the tensile load evenly between the LockBolts provides stronger , fatigue-resistant joining power every time .
LockBolts consist of a headed pin and a collar that is swaged over locking grooves in the pin . The pin is made with a series of pulling grooves at its tail end . The installation tool ( driven by pneumatic , hydraulic or battery power ) grips these grooves , pulls the work together , the conical shaped cavity of the nose assembly is forced down the collar . This progressively cold forms ( swages ) it into the grooves of the harder pin . The squeezing action reduces the diameter of the collar , increasing its length . This in turn stretches the pin , generating a clamp
C6L ® / C120L / C150L
The classic 6-groove locking fastener ideal for a wide range of applications . Available in grades 2 , 5 , and 8 .
HUCKBOLT
COLLAR
HUCK BOBTAIL
COLLAR
C6L ® / C6L ® / C120L C6L ® / C120L / C150L ® / C120L C150L / C150L / C150L
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tooling . standards
Huck ’ s swaged-on fastener with no
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fatigue
Superior vibration
3 / 16 ” - 3 / 8 ” resistance and
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The classic 6-groove locking fastener |
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for shear , tensile and |
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life .
Huck ’ s swaged-on
Huck ’ s
Huck
1 / 4 break-off
swaged-on ” - 3 / 8 ”, ’ fastener s 1 / 2 swaged-on ” - 1 ” and 12mm pintail
fastener with - 20mm . Corrosion
no fastener with resistant
no with and
no
1 / 2 ” – 1-3 / 8 ”
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Superior durability
Superior vibration
Superior for
vibration heavy-duty
resistance vibration resistance applications
and resistance and . and
Steel , Aluminum , Stainless ,
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ideal
The for
classic a
The wide
6-groove classic range
The classic of
6-groove applications
locking 6-groove locking fastener . locking fastener fastener
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Steel , Aluminum , Stainless
Steel Pin with Stainless Head break-off break-off pintail break-off installs . Corrosion pintail with . pintail Corrosion lightweight resistant . Corrosion resistant ergonomic and resistant and and durability
Meets durability for heavy-duty or durability exceeds for heavy-duty all for applications ASTM heavy-duty
Steel , Aluminum , Stainless
A-325 applications . applications . .
Available ideal for ideal in a grades wide for ideal range a 2 , wide 5 for , and of a range wide 8 applications . range of applications of . applications . .
Grade 2 , Grade 5 ( Class
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Grade 2 , Grade 5 ( Class installs with installs lightweight installs
8.8 tooling with ), Grade lightweight 8 .( with Class ergonomic
10.9 lightweight ) ergonomic ergonomic
Grade 5 ( Class
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8.8 ), Grade 8 ( Class 10.9 )
Grade
Meets 8 ( Class or standards
Meets 10.9 exceeds )
Meets or for exceeds all shear or ASTM exceeds , tensile all A-325 ASTM and all ASTM fatigue A-325 A-325
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Available
Available in grades
Available in 2 grades , 5 , in and grades 2 , 85 ., and 2 , 58 ,. and 8 .
3 / 16 ” - 3 / 8 ”
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8.8 ), |
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1 / 4 ” - 3 / 8 ”, 1 / 2 ” - 1 ” and 12mm - 20mm
Steel
3 / 16 ,” Aluminum - 3 / 816 ” ” -, Stainless 3 / 16 / 8 ”
- 3 /, 8 ” life .
1 life / 2 ”.– 1-3 life / 8 .” 1 / 4 ” - 3 / 18 /”, 4 ” 1 -/ 23 1 ”/
Steel 8 - 4 ”,” 1 ” - 1 , and 3 / Aluminum 2 / 8 ””, - 12mm 1 ”/ 2 and ”, - Stainless 1 - 12mm ” 20mm and 12mm - 20mm- 20mm
Steel Pin with Stainless Head
Steel , Aluminum
Steel ,
Steel Aluminum , Stainless , Aluminum , Stainless , , Stainless , ,
Steel , Aluminum , Stainless
Grade 2 , Grade 5 ( Class
1 / 2 ” – 1-3
1 / 2 / 8 ””– 1-3 / 2 ”/ 8 –” 1-3 / 8 ”
Grade 2 , Grade 5
Steel ( Class
Steel , Aluminum
Steel ,
Steel Aluminum , Stainless , Aluminum , Stainless , Stainless
Steel Pin
Steel with Pin Stainless with Pin Stainless with Head Stainless Head Head
8.8 ), Grade 8 ( Class 10.9 )
8.8 ), Grade 8 ( Class 10.9 )
Grade 5 ( Class 8.8 ), Grade 8 ( Class 10.9 )
Steel , Aluminum
Steel ,
Steel Aluminum , Stainless , Aluminum , Stainless , Stainless
Grade 2 , Grade
Grade 2 , 5 Grade ( Class 2 , Grade 5 ( Class 5 ( Class
Grade 2 , Grade
Grade 2 , 5 Grade ( Class 2 , Grade 5 ( Class 5 ( Class tooling tooling . . standards life standards . for standards shear for , tensile shear for , shear and tensile fatigue , tensile and fatigue and fatigue
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8.8 ), Grade
8.8 ), 8 Grade
8.8 ( Class ), Grade 810.9 ( Class ) 8 ( Class 10.9 ) 10.9 )
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8.8 ), Grade
8.8 ), 8 Grade
8.8 ( Class ), Grade 810.9 ( Class ) 8 ( Class 10.9 ) 10.9 )
Grade 5
Grade ( Class
Grade 58.8 ( Class ), 5 Grade ( Class 8.8 ), 8 Grade 8.8 ( Class ), Grade 810.9 ( Class ) 8 ( Class 10.9 ) 10.9 )
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force over the joint . The pin and swaged collar combine to form the installed fastener providing a permanent and completely vibration resistant joint .
CONSISTENT CLAMP IS THE ULTIMATE GOAL
To maintain structural integrity consistent clamp is the ultimate goal , without it , you risk bolt failure . The consistent clamp of direct tension HuckBolts ensures a more secure joint than conventional nuts and bolts .
When the same torque is applied to standard nuts and bolts , a wide range clamp-force can be recorded among each fastener . The tightest bolt can end up carrying the load of 4 or 5 bolts , causing it to fail from fatigue strength , this puts even more tensile force on fewer bolts .
28 PECM Issue 57