Reasons why fastener users choose Driv-Lok above the rest!
3 Driv-Loks technical engineering assistance provides Solution Resolution for our
customers needs.
3 Driv-Loks customer service hours provide full coverage for our global customers.
3 Driv-Loks delivery performance exceeds all industry standards.
3 Driv-Lok led the industry in carrying a full line of press fit fasteners for over 60 years.
3 Driv-Lok exceeds industry standards at
customer responsiveness.
3 Driv-Lok has been QS9000/ISO 9002
certified since 1996.
1140 Park Avenue, Sycamore, IL 60178
Phone: 815/895-8161
FAX: 815/895-6909
Website: www.driv-lok.com
Email: driv-lok@driv-lok.com
DRIV-LOK , Inc.
2002 DRIV-LOK, Inc.
Catalog DLPG-6
DRIV-LOK , Inc.
A Complete Line of Press Fit Fasteners
Metric sizes also available
QS9000/ ISO9002
CERTIFIED
www.driv-lok.com
|
Holding The Future Together
DRIV-LOK has extensive machining capabilities to
produce a wide range of special press fit fastening and
joining products to solve many problems. The special
fasteners on these pages are a small sampling of these
Special Press Fit Fasteners
NOTES
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DRIV-LOK, Inc.
1
broad capabilities. If you do not see the type of fastener
to meet your requirements, please send a sketch of the
fastener or a description of the application to the DRIV-
LOK Sales Department
Phone: 815/895-8161
Fax: 815/895-6909
Website: www.driv-lok.com
Email: driv-lok@driv-lok.com
Fasteners shown at actual size
4 squares 1"
SKETCH PART CONCEPT WITH TOLERANCES
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2
Mission Statement
DRIV-LOK is the preferred source of
innovative, cost effective solutions for our
customers who need press fit fastening,
joining and special component applications.
DRIV-LOK provides the highest quality,
superior customer service, shortest lead
times, and unequaled technical assistance
through a team of dedicated professionals.
CORE VALUES
1. Uncompromising integrity and pride in everything we do.
2. Nurture an environment of harmony and teamwork
throughout the corporation.
3. Commitment to helping all team members strive to be the
best they can be.
4. Dedication to provide our customers the highest quality
workmanship and value.
5. Intense desire for continuous improvement and elimination
of waste.
6. A resolve to create a safe, friendly, and fun atmosphere
where teamwork and creativity are valued.
OVER 60 YEARS OF SOLUTION RESOLUTION IN THE
PRESS FIT FASTENER INDUSTRY
Whatever we call the major DRIV-LOK products, grooved pins, knurled pins
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DRIV-LOK, Inc.
Product Guide Index
Special Pins
1
History Mission Statement 2
Product Guide Index 3
Grooved Pins
4, 5 6
High Alloy SHEAR-PROOF Pins
7
Hardened Lok-Dowels
8
Vent Dowels
8
Knurled Pins
9
Grooved Studs
10
BARB-LOK Pins and Studs
11
Ferrol Pin and Studs
11
Slotted Coiled Spring Pins
12 13
Split Hollow Dowels
13
Plain Pins and Dowels
13
Parallel Keys
15
Grooved Keys
16
Weights Measures
17 18
Technical Data
19
Ordering Information
20 21
Quality Plus
22
Technical Assistance
23
Dimensions, availability, and data contained herein are
subject to change without notice.
The product information contained in this Comprehensive
Guide to DRIV-LOKs press fit fastening and joining
products includes:
APPLICATION
DESCRIPTION
FUNCTION
STANDARD TYPES
SPECIAL TYPES
SIZES DIMENSIONS
SPECIAL ORDERS OPTIONS
TECHNICAL DATA
WEIGHTS MEASURES
ORDERING INFORMATION
In addition to the stan
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4
Grooved Pins
APPLICATION
Grooved pins are non-threaded press fit fasteners. A PRESS
FIT fastener is a fastener which is PRESSED into an
appropriate size hole which will provide the proper
interference FIT to lock the fastener in place. Grooved pins
differ from many conventional press fit fasteners, such as
dowel pins, in that the holes into which the grooved pins are
inserted do not have to be reamed prior to insertion. This
gives the grooved pin an important economic advantage over
other types of press fit fasteners.
Grooved pins are commonly used as locking devices, pivots,
bearing faces, or locating elements. They are used where
there is not a high degree of end load. Basically, grooved
pins are shear-resistant type fasteners. For high shear
applications, see High Alloy SHEAR-PROOF Pins
on
page 7.
DESCRIPTION
The groove of a grooved pin is formed by a swaging
operation in which three tools penetrate the nominal
diameter of the metal at 120 intervals. This p
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20
Ordering Information
STANDARD AND SPECIAL OPTIONS
The table below indicates various characteristics which are
standard or available as options.
If you do not see the option you desire, call DRIV-LOKs
Sales Department for assistance.
KEY:
A Available on special orders
E Engineering evaluation required
NA Not Available
S Standard
S/A Standard or Available depending upon diameter
length, or material (inquire for specific details).
Options
Fastener Type
Grooved
Pins
Grooved
Studs
Lok-
Dowels
Vent
Dowels
Knurled
Pins
Spring
Pins
BARB-LOK
Studs
BARB-LOK
Pins
Square
Keys
Rectangular
Keys
SHEAR-
PROOF
Pins
Dimensions*
Nominal Diameter/Width
S
S
S
S
A
A
S
S
A
S
A
Expanded Diameter
S
S
S
S
NA
A
S
S
A
A
A
Pin/Shank Length
S
S
S
S
A
A
S
S
A
S
A
Groove Length
S
S
S
S
A
NA
NA
NA
NA
A
A
Groove Location
S
S
S
S
A
NA
NA
NA
NA
A
A
Knurl Length
NA
NA
NA
NA
NA
A
NA
NA
NA
NA
NA
Knurl Location
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Pin Diameter
Decimal
Equivalent
Recommended
Drill Size
Hole Tolerances
ADD To
Nominal Diameter
6
Grooved Pins (cont.)
GROOVED PIN DRILLING PROCEDURES AND HOLE TOLERANCES
Insertion and holding forces vary with hole size and groove
length. Recommended hole size tolerances are based on a groove
length to hole diameter ratio of approximately 5 to 1. A higher
ratio than 5 to 1 may require adjustment in hole size. If the ratio
is 1 to 1 or less then the hole tolerance should be reduced
approximately 60%. Smaller hole size variation should result in
more consistent insertion forces. These factors should be
considered when designing press fit fasteners for your
application.
Hole sizes should never be smaller than the nominal diameter of
the grooved pin. Minimum hole size equals nominal grooved pin
diameter. Maximum hole size equals minimum hole size plus
recommended hole tolerance from the chart.
Example: 1/8 diameter pin:
Min. hole .125
Max. hole .125 .003 =.128
A s
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18
Spring Pins
WEIGHTS (lbs.) per 1000 Pieces
Round Head Steel Studs
WEIGHTS (lbs.) per 1000 Pieces
Weights Measures (cont.)
NOM.
DIA.
1/16
5/64
3/32
1/8
5/32
3/16
7/32
1/4
5/16
3/8
7/16
1/2
3/16
0.12
0.18
1/4
0.16
0.25
0.36
5/16
0.20
0.31
0.45
3/8
0.24
0.37
0.54
0.91
7/16
0.28
0.43
0.63
1.06
1.56
1/2
0.32
0.49
0.73
1.21
1.78
2.72
9/16
0.36
0.55
0.82
1.36
2.00
3.06
4.25
5/8
0.40
0.61
0.91
1.52
2.23
3.40
4.72
5.58
11/16
0.44
0.68
1.00
1.67
2.45
3.75
5.19
6.13
3/4
0.48
0.74
1.09
1.82
2.67
4.09
5.66
6.69
10.38
15.27
13/16
0.52
0.80
1.18
1.97
2.89
4.43
6.13
7.25
11.25
16.54
7/8
0.56
0.86
1.27
2.12
3.12
4.77
6.60
7.81
12.11
17.81
15/16
0.60
0.92
1.36
2.27
3.34
5.11
7.08
8.37
12.98
19.08
1
0.64
0.98
1.45
2.43
3.56
5.45
7.55
8.92
13.84
20.36
24.29
1 1/8
1.
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8
Hardened Lok-Dowels
Vent Dowels
APPLICATION
Vent Dowels are most commonly used in blind hole
applications because they eliminate the need for costly
machining which would be necessary to prevent air locks.
The Vent Dowel is interchangeable with most standard
machine dowels.
DESCRIPTION
The Vent Dowel had three helical grooves on its diameter
as shown above. The diameter is ground to a total tolerance
of .0005 in. with a surface roughness of 32 RMS maximum.
Vent Dowels may be made from a variety of steels.
FUNCTION
The three helical grooves on a DRIV-LOK Vent Dowel
function as vents to relieve air locks that may occur when
standard dowels are inserted into blind holes. The helical
grooves provide a width and depth sufficient to relieve the
air lock without disturbing the .0005 in. total diameter
tolerance of the pin.
SPECIAL ORDERS
All Vent Dowels are special
orders and are manufactured
to customer specifications. Available Vent
Dowel diameters range from 1
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16
Grooved Machine Keys
APPLICATION
Grooved machine keys are used in the same applications
as standard parallel machine keys where reduced backlash
and increased holding power is required. Machine keys
are pressed into keyways which are cut into a shaft and
hub assembly parallel to the axis of the shaft. Machine
keys are most commonly used in this manner to lock shaft
and hub assemblies together to transmit torque.
DESCRIPTION
Type 1 grooved machine keys have grooves on one
surface where permanent assembly is not required. Type 2
grooved machine keys have grooves on two opposite
surfaces for permanent or semi-permanent assembly. The
grooves impressed in the key displace metal which
expands the width to provide positive holding action. This
eliminates costly drilling and tapping for set screws or
other additional processes which would be required to
hold the pin in place.
Most square keys are available with 45 chamfers at both
ends for easy insertion and elimination
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10
Grooved Studs
ORDERING INFORMATION
See pages 20 21.
SPECIAL STUDS
In addition to standard round head grooved studs, flat heads,
button heads, and T heads are also available a special orders.
DRIV-LOKs engineering staff will work with customers to
provide technical assistance. Special materials, diameters,
shank lengths, end configurations, and finishes are available
by request as special orders. See ORDERING
INFORMATION on page 20 for options available.
APPLICATION
Grooved studs are commonly used for a variety of
applications including fastening brackets, control arms,
knobs, handles, instruction panels, and nameplates.
DESCRIPTION
Grooved studs have three parallel grooves spaced at 120
intervals around the diameter of the shank. Standard grooved
studs are manufactured from low carbon steel and are zinc
plated for corrosion resistance.
FUNCTION
Grooved studs function in the
same manner as grooved pins.
They provide the same positive
holding features as groo
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14
Split Hollow Dowels
Plain Pins and Dowels
APPLICATION
Plain pins and dowels are used in the same manner as
grooved pins when highly accurate location is required.
Plain pins and dowels may be used as locking devices,
pivots, bearing faces, or locating elements. Use of plain
pins and dowels generally requires a drilled and reamed
hole. They are used where there is not a high degree of
end load and are basically shear resistant type fasteners.
DESCRIPTION
Plain pins are solid cylindrical pins which have a cold
drawn finish. Plain pins with diameters up to 1/8" have a
tolerance of +.000/-.001 in. and diameters 1/8" and over
have a tolerance of +.000/-.002 in.
Dowels are solid cylindrical pins which have a centerless
ground finish with total precision tolerances.
All plain pins and dowels are special order items. Various
materials, diameters, lengths, end configurations, heat
treatment, and finishes are available. See ORDERING
INFORMATION on page 20 for options avai
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DRIV-LOK, Inc.
13
Coiled Pins
CARBON STEEL AND OTHER
MATERIALS AVAILABLE
ASME B18.8.2-1995
Slotted Coiled Spring Pins (cont.)
SPRING PIN STANDARD DIMENSIONS
A
C
RECOMMENDED
HOLE SIZE
MINIMUM DOUBLE
SHEAR STRENGTH
POUNDS
Carbon Steel and
420 Stainless Steel
Min.
Max.
B
Max
STOCK
THICK-
NESS
Nominal
Maximum
(Go Ring Gage)
Minimum
1/3 (D1+D2+D3)
Min.
Max.
1/16
(.062)
.066
.069
.059
.007
.028
.015
.063
.065
430
5/64
(.078)
.083
.086
.075
.008
.032
.018
.079
.081
800
3/32
(.094)
.099
.103
.091
.008
.038
.022
.095
.097
1,150
1/8
(.125)
.131
.135
.122
.008
.044
.028
.125
.129
1,875
5/32
(.156)
.162
.167
.151
.010
.048
.032
.157
.160
2,750
3/16
(.187)
.194
.199
.182
.011
.055
.040
.188
.192
4,150
7/32
(.219)
.226
.232
.214
.011
.065
.048
.219
.224
5,850
1/4
(.250)
.258
.264
.245
.012
.065
.048
.250
.256
7,050
5/16
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