Bob Tail Huck Bolt
Bob Tail Huck Bolt
Bob Tail Huck Bolt
The Next
Generation HuckBolt
®
No Pintail
Fast Installation
Vibration Resistant
1/2"-1", 12mm-20mm
1
The Huck BobTail System ®
Advanced fasteners and tooling delivering ultimate strength, installation speed, and vibration resistance.
Representing the most advanced fastening technology to date, the BobTail® System
(fasteners and tooling) has been developed to deliver the highest level of performance
and reliability.
and bolts. Finally, when you factor in the cost of the fasteners
BobTail® Benefits
2
Unmatched Speed of Installation
The BobTail® System delivers a lightening-quick installation cycle time for greater productivity – as fast as two seconds*.
This quick cycle is due, in part, to the short time required to apply the tool to the pin and initiate the installation cycle.
Once the operator engages the trigger, the swage and eject sequence is programmed to complete the cycle without
any additional worker input.
1 2 3 4
The pin is inserted into the prepared The installation tool is applied to At a predetermined force, the anvil When swaging of the collar into the
hole, and the collar is spun onto annular pull grooves. When the tool begins to swage the collar into pin lockgrooves is complete, the tool
the pin. is activated, a puller in the nose the pin’s lockgrooves. Continued ejects the fastener and releases the
assembly draws the pin into the tool, swaging elongates the collar and pin, puller to complete the sequence.
causing the swaging anvil to press on developing precise clamp.
the collar, drawing up any sheet gap.
3
BobTail System ®
4
Head Style Options
Grade 5 Standard Upon Request Class 10.9 Standard Upon Request 5/8", 16mm
Class 8.8 Available Grade 8 Standard
C E
G F
D A Fit-Up Tab
B J H
Fastener Dimensions
Round Head Flanged Head Stainless Steel Cap Truss / 90º / 30
Diameter A B C B C B C B C
5/8" .625 max 1.086 - 1.196 .367 - .432 1.270 - 1.330 .448 - .499 1.270 - 1.330 .300 - .340 Upon Request —
3/4" .750 max 1.326 - 1.440 .455 - .530 1.520 - 1.600 .550 - .600 — — — —
5
Inch data and dimensions
Collar Dimensions C E
D A
H
Diameter F G J
Grade 5 Grade 8 B
1/2" 1.010 - 1.080 0.728 - 0.748 0.749 - 0.759 0.762 - 0.772 0.506 - 0.518
5/8" 1.270 - 1.330 0.912 - 0.932 .0.935 - 0.945 0.953 - 0.963 0.633 - 0.645 G Fit-Up Tab F
3/4" 1.520 - 1.600 1.095 - 1.115 1.132 - 1.142 1.145 - 1.155 0.760 - 0.774
7/8" 1.775 - 1.865 1.280 - 1.300 1.310 - 1.325 — 0.885 - 0.900 J H
1" 1.930 - 2.010 1.460 - 1.490 1.500 - 1.515 1.525 - 1.540 1.010 - 1.030
Grip Tables
Grip 1/2" 5/8" 3/4" 7/8" 1"
Grip
Range D E D E D E D E D E
4 .25-.62 0.150 1.440 0.150 1.601 0.160 1.850 0.250 2.056 0.250 2.260
8 .50-.87 0.150 1.690 0.150 1.851 0.160 2.100 0.250 2.306 0.250 2.510
12 .75-1.12 0.150 1.940 0.150 2.101 0.160 2.350 0.250 2.556 0.250 2.760
16 1.00-1.37 0.150 2.190 0.150 2.351 0.160 2.600 0.250 2.806 0.250 3.010
20 1.25-1.62 0.150 2.440 0.150 2.601 0.160 2.850 0.250 3.056 0.250 3.260
24 1.50-187 0.150 2.690 0.150 2.851 0.160 3.100 0.250 3.306 0.250 3.510
28 1.75-2.12 0.150 2.940 0.150 3.101 0.160 3.350 0.250 3.556 0.250 3.760
32 2.00-2.37 0.150 3.190 0.150 3.351 0.160 3.600 0.500 3.806 0.500 4.010
36 2.25-2.62 0.150 3.440 0.150 3.601 0.160 3.850 0.500 4.056 0.500 4.260
40 2.50-2.87 0.150 3.690 0.150 3.851 0.375 4.100 0.500 4.306 0.500 4.510
44 2.75-3.12 0.150 3.940 0.375 4.101 0.375 4.350 0.500 4.556 0.500 4.760
48 3.00-3.37 0.375 4.190 0.375 4.351 0.375 4.600 0.500 4.806 0.500 5.010
52 3.25-3.62 0.375 4.440 — — 0.375 4.850 0.500 5.056 0.500 5.260
56 3.50-3.87 0.375 4.690 — — 0.375 5.100 0.500 5.306 0.500 5.510
60 3.75-4.12 0.375 4.940 — — 0.375 5.350 0.500 5.556 0.500 5.760
64 4.00-4.37 — — — — 0.375 5.600 0.500 5.806 0.500 6.010
68 4.25-4.62 — — — — 0.375 5.850 0.500 6.056 0.500 6.260
72 4.50-4.87 — — — — 0.375 6.100 0.500 6.306 0.500 6.510
D
MAX.
5/8" 19,200 (85.4) 26,000 (115.6) 27,100 (120.5) 36,600 (162.8) 22,500 (100.1) 26000 (115.6)
3/4" 28,400 (126.3) 37,200 (165.5) 40,100 (178.4) 50,100 (222.8) 32,400 (144.1) 38,000 (169.0)
7/8" 39,250 (174.6) - 55,450 (246.6) - 43,400 (193.0) -
1" 51,500 (229.1) 64,000 (284.7) 72,700 (323.4) 90,900 (404.3) 56,500 (251.3) 68,000 (302.5)
6
Metric data and dimensions E
C
D A
Collar Dimensions
B
Diameter F G H J
12mm (10.9) 24.1 - 25.4 17.3 - 17.7 18.3 - 18.5 12.1 - 12.3
14mm (8.8) 28.2 - 29.6 20.5 - 21.0 20.9 - 21.1 14.0 - 14.3 G Fit-Up Tab F
14mm (10.9) 28.2 - 29.6 20.5 - 21.0 21.1 - 21.5 14.0 - 14.4
16mm (10.9) 32.3 - 33.8 23.1 - 23.7 24.1 - 24.5 16.0 - 16.4
J H
20mm (10.9) 40.3 - 42.1 29.0 - 29.6 30.2 - 30.6 20.1 - 20.5
Grip Tables
Grip 12mm 14mm 16mm 20mm
Grip
Range D E D E D E D E
10 5-15 3.8 34.2 3.8 37.1 3.8 40.1 3.8 45.9
15 10-20 3.8 39.2 3.8 42.1 3.8 45.1 3.8 50.9 D
20 15-25 3.8 44.2 3.8 47.1 3.8 50.1 3.8 55.1 MAX.
A
25 20-30 3.8 49.2 3.8 52.1 3.8 55.1 3.8 60.9 MIN. B
MAX.
30 25-35 3.8 54.2 3.8 57.1 3.8 60.1 3.8 65.9
35 30-40 3.8 59.2 3.8 62.1 3.8 65.1 3.8 70.9
C
40 35-45 3.8 64.2 3.8 67.1 3.8 70.1 3.8 75.9 MIN.
Hole Data
Diameter Max Hole
12mm 13.5mm (17/32")
14mm 15.5mm (39/64")
16mm 17.5mm (11/16")
20mm 22mm (7/8")
7
BobTail Installation Tooling
®
Newly designed BobTail tooling makes the installation process quicker and easier by reducing the force required
to install each fastener. More compact and lighter weight than previous Huck lockbolt production tooling, BobTail
installation tools also offer greater operator flexibility as well as extended reach into difficult areas.
For tight, space-constrained applications, SWAGEFORWARD® BobTail tools allow the operator to position his or
her hand at a safe distance from the working structure during installation.
Model SF20
SWAGEFORWARD®
Model SF46
Cost-Efficient Operation
Smooth-operating BobTail installation
tooling directly contributes to longer
tool and component life, while allowing
extended tool maintenance cycles.
As a result, costs for parts and overall
support are reduced, while system
uptime is increased.
8
Tooling Selection (Inches) Tooling Selection (Metric)
Diameter *Tool Installation Cutter Diameter *Tool Installation Cutter
Other BobTail tooling options are available. Visit the Tooling Resource Center
at AFSRHuck.net/Tooling or call AFSR at 800-278-4825 for more information.
9
Nose Assembly Clearance Dimensions
Install Fig A B C D
99-7820 B 7.69 6.49 1.31 3.82
99-7821 A 7.67 6.01 1.75 N/A
99-7822 A 7.88 6.65 2.19 N/A
99-7824 B 7.68 6.28 1.61 3.83
99-7825 B 7.68 6.28 1.43 3.92
Fig. A
99-7826 A 7.88 6.65 2.19 N/A
99-7850 B 5.74 4.46 1.31 2.35
99-7851 A 5.84 4.28 1.75 N/A
99-7852 A 7.58 6.06 2.19 N/A
99-7853 A 8.1 6.66 2.44 N/A
99-7854 A 5.74 4.45 1.61 N/A
99-7855 B 5.74 4.46 1.43 2.6
99-7856 A 7.58 6.06 2.19 N/A Fig. B
99-7857 A 8.82 7.36 2.75 N/A
99-7880 C 1.02 1.31 N/A N/A
99-7881 C 1.02 1.75 N/A N/A
99-7882 C 1.02 1.43 N/A N/A
99-7884 C 1.01 1.61 N/A N/A
Cutter Fig A B C D
99-7820CX B 7.66 6.47 1.31 3.369
99-7821CX A 7.61 6.05 1.75 N/A
Fig. C
99-7822CX A 7.89 6.9 2.06 N/A
99-7824CX A 7.65 6.25 1.75 N/A
99-7825CX B 7.65 6.25 1.43 3.34
99-7826CX A 7.89 6.97 2.00 N/A
99-7850CX B 5.72 4.43 1.313 2.69
99-7851CX A 6.24 4.24 1.75 N/A The standard BobTail installation
99-7852CX A 7.51 6.07 2.06 N/A system includes a Powerig® hydraulic
99-7853CX A 8.067 606 2.44 N/A power unit, hydraulic hoses, fittings,
99-7854CX A 5.7 4.33 1.75 N/A and a BobTail installation tool.
99-7855CX B 5.72 4.43 1.43 2.96
99-7856CX A 7.59 6.07 2.00 N/A
99-7857CX A 8.82 7.36 2.75 N/A
99-7880CX C 2.52 1.31 N/A N/A
99-7881CX C 2.52 1.75 N/A N/A
99-7882CX C 2.52 1.43 N/A N/A
99-7884CX C 2.52 1.51 N/A N/A
Powerig
Model 918
Huck Powerig® Hydraulic Units
Model 918 Model 940 Model 969 not shown
Operates up to 2 tools;
70 in 3/min flow rate 6 cubic in./min.
2 gpm flow rate
10
Ordering Information
Follow the form below to construct a part number for ordering BobTail pins and their respective collars.
Refer to the Grip Tables (pages 6-7) for grip numbers.
Pins BT (HEAD STYLE) - (MATERIAL) (DIAMETER) - (GRIP NUMBER) (FINISH)
Example: BTR-BR20-8 is a BobTail Pin, Round Head, Grade 5 Carbon Steel, 5/8" Diameter, Grip 8, Oil Finish
Collars BT (TYPE) - (MATERIAL) (DIAMETER) (FINISH)
Example: BTC5-R20UA is a BobTail Collar, Grade 5 Carbon Steel, 5/8" Diameter, Zinc Plated
Inch Series
Bolt Head Style Prefix Bolt Material Code Diameter Code Grip Finish Suffix
Metric Series
Bolt Head Style Prefix Bolt Material Code Diameter Code Grip Finish Suffix
Collars
Bolt Head Style Prefix Material Code Diameter Code Finish Suffix
11
Alcoa Fastening Systems & Rings TM
For more than 120 years, the name Alcoa has been recognized worldwide as a strong leader in product quality and customer
support. These strengths are found in every product manufactured for Alcoa Fastening Systems & Rings, offering the greatest breadth
and depth of fastening system solutions in the industry.
Alcoa Fastening Systems & Rings (AFSR) maintains company offices in the United States and in many other countries. AFSR fastener
distributors are also located in many of the world’s industrial centers, where they provide a ready source of AFSR fasteners, installation
tools, tool parts, and application assistance.
AFSRHuck.net
Youtube.com/AFSIndustrial
The information contained in this publication is only for general guidance, and is
not intended to create any warranty, express, implied, or statutory; all warranties
are contained only in AFSR’s written quotations, acknowledgments, and/or
purchase orders. It is recommended that the user secure specific, up-to-date data
and information regarding each application and/or use of such products.
© 2015 Alcoa Fastening Systems & Rings. All rights reserved. AFS5680