Dual Lock™ Transportation Selection Guide Datasheet by 3M

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Dual Lock Fasteners Attachment 1. Position 2, Snap 0 Together «If m M O Easy Alignment Reclosability Blind Attachment Ease of Assembly Multiple Attachment Methods Po 'tive ankinn
3
Dual LockTM Reclosable Fasteners
for Transportation Industry
Selection Guide
General Description 3M™ Dual Lock™ Reclosable Fasteners are
positive-locking, blind fasteners designed for
attaching headliner, wall and door panels in
the transportation industry. The products
feature mushroom-shaped polyolefin stems
that snap together, forming a high tensile
closure. Dual Lock reclosable fasteners are
used primarily to secure rigid and semi-rigid
surfaces. Some examples are to prevent
headliner sag, attach center consoles,
instrument panel bezels, headliners, wall and
door panels and other interior trim.
Dual Lock reclosable fasteners overcome the
often difficult alignment and installation
problems of screws and hidden fasteners.
Dual Lock reclosable fasteners offer a cost
effective alternative to traditional fasteners.
Product Information March, 2004
Benefits 1. Easy Alignment: Dual Lock reclosable fasteners engage in any orientation. The
heads slide over each other until they are engaged with firm pressure, eliminating
concerns about misalignment, premature or incomplete engagement.
2. Reclosability: Dual Lock reclosable fasteners can be opened and reclosed in high
cycle life applications.
3. Rattle-Free: Dual Lock reclosable fasteners typically won’t rattle loose.
4. Blind Attachment: Dual Lock reclosable fasteners can be attached on the backside
of a trim piece where it won’t interrupt the show surface.
5. Ease of Assembly: Dual Lock reclosable fasteners can be attached to components
before they enter the assembly plant, reducing the number of parts and the
required assembly time.
6. Multiple Attachment Methods: Dual Lock reclosable fasteners can be attached to a
variety of surfaces by A) adhesive attachment with hot melt or pressure-sensitive
adhesives, B) mechanical attachment using rigid back parts, C) high strength pop-
in parts, D) sewing, E) stapling, or F) ultrasonic fusing. Custom mold-in parts for
low temperature/low pressure mold applications are also available.
7. Positive Locking: Dual Lock reclosable fasteners fasten with an audible snap,
assuring secure closure.
3MDual LockReclosable Fasteners for Transportation Industry
Selection Guide
Applications 3M™ Dual Lock™ Reclosable Fasteners are available in three stem densities:
Type 170 170 stems/sq in (approximately 26 stems/sq cm)
Type 250 250 stems/sq in (approximately 39 stems/sq cm)
Type 400 400 stems/sq in (approximately 62 stems/sq cm)
Low Profile 705 stems/sq in (approximately 110 stems/sq cm)
Dual Lock Reclosable Fasteners can be mated in the following combinations:
170 to 250 Easy opening for multiple closures.
low engagement force, low tensile strength.
250 to 250 Medium engagement force balanced with
170 to 400 moderate tensile strength.
250 to 400 Higher engagement force balanced with high
tensile strength.
Dual Lock to 3M™ Scotchmate™ Loop Quick grab engagement giving high peel force.
Low Profile One half the thickness of Dual Lock, easier to
engage, flexible.
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Trunk liners
Headliners
Door panels
Instrument panel bezels
CHMSL
Covers
Trim panels
3MDual LockReclosable Fasteners for Transportation Industry
Selection Guide
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Attachment Options
3M™ Dual Lock™ Reclosable Fasteners Plain Back/Pressure-Sensitive/Non-Woven Backed
All available in 50 yard rolls except as noted, up to 4 in. (101.6 mm) wide.
Plain Back Dual Lock reclosable fasteners can be attached to surfaces by sewing, stapling, ultrasonically fusing to many polypropylene
materials or use of liquid adhesives which bond polypropylene.
Pressure-Sensitive Dual Lock reclosable fasteners utilize 3M™ High Performance Acrylic Foam Tapes, which adhere to most
automotive surfaces such as painted steel, aluminum, stainless steel and ABS. On some surfaces, primers may be required.
Non-Woven Backed Dual Lock reclosable fasteners utilizes a polyolefin non-woven loop backing to facilitate attachment with hot melt
or liquid adhesives to substrates.
Recommended combinations, listed in order of increasing strength: 170 to 250, 170 to 400, 250 to 250, 705 to 705, 250 to 400,
Dual Lock to 3M™ Scotchmate™ loop.
Note: Type 170 to 170 and Type 400 to 400 are not recommended combinations.
(Approx. stems/cm2)
170 250 400 705
Plain Back SJ3742 SJ3780 SJ3741 0.14 (3.7)
Pressure-Sensitive
5 mil Acrylic Foam Tape SJ4570 0.11 (2.7)
15 mil Acrylic Foam Tape SJ3787 SJ3785 0.18 (4.5)
15 mil Acrylic Foam Tape SJ4580 0.13 (3.2)
37 mil Acrylic Foam Tape SJ3752 SJ3781 SJ3751 0.21 (5.4)
43 mil Acrylic Foam Tape SJ3244 SJ3245 0.21 (5.4)
47 mil Acrylic Foam Tape SJ3777
60 mil Acrylic Foam Tape SJ3788
80 mil Acrylic Foam Tape SJ3756bSJ3789bSJ3757b 0.31 (7.8)
5 mil Adhesive Transfer Tape SJ3773 SJ3782 SJ3774 0.16 (4.1)
Non-Woven Backed SJ3754cSJ3223cSJ3753c 0.24 (6.1)
Rigid Back SJ3768 SJ3481 0.24 (6.1)
SJ3766 0.23 (5.8)
Rigid Back
Rigid Back Dual Lock reclosable fasteners are designed for mechanical attachment (such as riveting) or for sliding into retention brackets.
Identification Dual Lock Reclosable Fastener Products
170 250 400
Slide-In Part SJ3736 SJ3227 SJ3228, SJ3237,
SJ3737 SJ3229 SJ3717, SJ3750
Round Part with center hole SJ3712 SJ3251 SJ3234, SJ3235,
SJ3263 SJ3463, SJ3465,
SJ3755 SJ3759, SJ3762,
SJ3763, SJ3765
with no center hole SJ3238 SJ3236
Square Parts with holes SJ3252, SJ3261,
SJ3767
Rectangle with hole SJ3231
Miscellaneous – SJ3735
Pop-In Parts
Pop-In parts are designed for insertion into sheet metal or plastic holes and key ways. Other sizes are available.
Plain
Back
Non-Woven
Pressure-Sensitive
Rectangular
Slide-In
Round
Single Disk Stem
Pine Tree
Stem
Rectangular Base
See list of attached products for specific description and sizes.
Identification Dual Lock Reclosable Fastener Products
170 250 400
Square top with pine tree stem SJ3209 SJ3224
SJ3222 SJ3748, SJ3749
Square top with single disk SJ3221 SJ3731
Square top with rectangle stem SJ3226 SJ3704 SJ3708, SJ3711,
SJ3719 SJ3713
Square top on round stem SJ3715
Twin Rose Bud SJ3747
Square top with trapezodial stem SJ3709
b45 yard rolls cmaximum width is 3 in. (76.2 mm)
Engaged
Thicknessa
mils (mm)
aAll engaged thicknesses are for Type 250 engaged
to Type 250 or Type 705 engaged to Type 705.
3MDual LockReclosable Fasteners for Transportation Industry
Selection Guide
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General Physical
Properties Material Polyolefin
(3M™ Dual Lock™ Pressure-Sensitive Reclosable Fasteners
utilize polyolefin liner.)
Color Black or Clear
Environmental Excellent moisture resistance.
Stability Recommended temperature range:
-20°F to 220°F (-12°C to 104°C).
Shelf Life Product should be used within 2 years from date of manufacture
when stored in original package at 72°F (22°C) and 50% R.H.
Flammability Dual Lock reclosable fasteners should be tested as a composite with
the component it is attached to for FMVSS 302 certification.
Also see the Flame Resistant Products data page (70-0707-3992-8).
Thickness
Because of the wide variety of backing options it is suggested you consult specific data page
for products that may be of interest to your application.
Engaged Thickness
in. (mm)
Engaged Plain Pressure- Rigid Pop-In***
to Back Sensitive* Back**
Plain Back 0.15 0.19 0.24 0.23
(3.81) (4.82) (6.09) (5.84)
Pressure 0.22 0.27 0.27
Sensitive* (5.59) (6.86) (6.86)
Rigid Back** 0.35 0.35
(8.89) (8.89
Pop-In 0.35
Stem*** (8.89)
Tolerance on Engaged Thicknesses is ± 20%.
*Using 0.143 in. (3.63 mm) thick material, does not include the liner
**Using 0.190 in. (4.83 mm) thick material
***Does not include pop-in stem
1k Newlon :uu {k Newlon cfia :>
3MDual LockReclosable Fasteners for Transportation Industry
Selection Guide
Performance
Properties
Typical system performance properties of 3M™ Dual Lock™ Reclosable Fasteners at 72°F ± 5°F
(22°C ± 3°C) and 50% ± 10% R.H. attached to aluminum panels.
Note: Attachment method or use of other fasteners may affect system dynamic performance
listed below.
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Test Test Condition Dual Lock Dual Lock
170/250 250/400
SJ3752/SJ3781 SJ3781/SJ3751
Static Tensile 1,000 g @ 120°F 10,000 mins. 10,000 mins.
@ 158°F 10,000 mins. 10,000 mins.
@ 200°F 10,000 mins. 10,000 mins.
@ 220°F 10,000 mins. 10,000 mins.
Static Shear 1,000 g @ 120°F 10,000 mins. 10,000 mins.
@ 158°F 10,000 mins. 10,000 mins.
@ 200°F 10,000 mins. 10,000 mins.
@ 220°F 10,000 mins. 10,000 mins.
System Dynamic Tests Dual Lock Reclosable Fasteners
SJ3752 SJ3781 SJ3752 SJ3781 SJ3781
to to to to to
SJ3781 SJ3781 SJ3751 SJ3751 SJ3571
170 to 250 250 to 250* 170 to 400 250 to 400 250 to Loop
Initial Engagement
lbsF/sq in 19 29 29 40 < 1
(131) (200) (200) (276) (< 6.9)
Initial Disengagement
lbsF/sq in222 44 50 57 37
(152) (303) (346) (393) (255)
*Widths less than 3/4" should not be self mated for type 250. If widths less than 3/4" are desired a
170 to 400 combination is suggested.
Temperature Variation Chart
All Dual Lock reclosable fastener combinations will support static tensile or shear loads up to
2.2 lbs/sq in (1.0 kg/6.45 cm2) across a temperature range of -20°F to 220°F (-12°C to 104°C).
Different attachment methods may change performance.
Specifications
Conformance Conformance to the following automotive specifications is certified on an annual basis:
General Motors: GM 2743M, GM 3618M
Ford: WSB M15P35 A
Chrysler: PF 8543
PF 8858
(k Newton)
m2
()
(k Newton)
m2
()
3MDual LockReclosable Fasteners for Transportation Industry
Selection Guide
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Rigid Backed Products – Color-Black
Product # Selection Guide Description Size Stem Density
SJ3227 Slide-In rectangle Black, 16mm x 25.4mm x 5.08mm (Thick). 250
SJ3228 Slide-In square Black, 20mm x 20mm x 5.08mm (Thick). 400
SJ3229 Slide-In square Black, 25.4mm x 25.4mm x 5.08mm (Thick). 250
SJ3231 Rigid backed rectangle with one hole Black, 20mm x 30mm x 6.35mm (Thick), 400
with one 3.2mm hole and a 7.54mm CB.
SJ3232 Rigid backed rectangle with one hole Black, 20mm x 30mm x 5.08mm (Thick), with 400
one C Bored 3.2mm hole and a 7.54mm CB.
SJ3234 Rigid backed circle with one hole Black, 9/16" (14.3mm) diameter washer, with 400
one 9.2mm diameter C Bore, on a 4.1mm hole.
5.1mm tall.
SJ3235 Rigid backed circle with one hole Black, 20.6mm (13/16") diameter circle. 5.1mm 400
(Thick), with one 9.0mm diameter C Bore, on
a 4.1mm hole.
SJ3236 Rigid backed circle with no hole Black, 28.5mm diameter and 5.08mm (Thick), 400
with no hole.
SJ3237 Slide-In rectangle no holes Black, 32mm x 50mm x 4.7mm (Thick). 400
SJ3238 Rigid backed circle no holes Black, 28.6mm diameter, 5.96mm (Thick). 250
SJ3251 Rigid backed circle with one hole Black, 28.5mm (11/8") diameter circle. 5.96mm 250
thick with one 4.93mm diameter hole and
a 9.53mm diameter centered counterbore.
SJ3252 Rigid backed square with 2 holes
Black, (38.1mm x 38.1mm) with 2 counterbored
400
8.33mm (0.327") x 4.22mm (0.166") holes.
SJ3261 Rigid backed square with 2 holes Black, Rigid Backed Type 400 Square, 1.5" x 400
1.5" x 0.200", with two C Bored, 3.6mm holes,
25mm apart.
SJ3263 Rigid backed circle with one hole Black, 13/16" (20.6mm) round, 5.1mm (Thick), 250
with one 7.9mm C Bore on a 4.1mm hole.
SJ3463 Rigid backed circle with one hole Same as SJ3763. 400
SJ3465 Rigid backed circle one hole Black, 14.29mm (9/16") diameter circle. 5.1mm 400
(Thick), with one 4.1mm diameter hole and
a 7.9mm diameter centered counterbore.
SJ3481 Rigid backed strips Black, Rigid Backed Type 400 DL 400
• 1" x 48", 40 pcs/box
• 2" x 48", 20 pcs/box
SJ3712 Rigid backed circle with one hole Black, 28.5mm (11/8") diameter circle. 5.1mm 170
(Thick) with one 4.1mm diameter hole and
a 7.9mm diameter centered counterbore.
SJ3717 Slide-In rectangle no holes Black, 1" (L) x 1.22" (W) x 5.1mm (Thick). 400
3MDual LockReclosable Fasteners for Transportation Industry
Selection Guide
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Rigid Backed Products – Color-Black (continued)
Product # Selection Guide Description Size Stem Density
SJ3735 Rigid backed diamond shaped Black, 5.08mm (Thick), hexagon shape with 400
two “T” slots.
SJ3736 Slide-In square DL area Black, 5.08mm (Thick), 25.4mm x 31mm. 170
SJ3737 Slide-In rectangle Black, Slide-In, Type 170 D/L, 5.08mm (Thick), 170
D/L area is 25.4 x 28mm.
SJ3750 Slide-In rectangle Black, 5.45mm (Thick) DL area is 25.4mm x 400
50mm.
SJ3755 Rigid backed circle with one hole Black, 28.5mm (11/8") diameter circle. 5.96mm 250
(Thick), with one 4.1mm diameter hole and a
7.9mm diameter centered counterbore.
SJ3759 Rigid backed circle with one hole Black, 28.5mm (11/8") diameter circle. 5.96mm 400
(Thick), with one 4.1mm diameter hole and a
7.9mm diameter centered counterbore.
SJ3762 Rigid backed circle with one hole Black, 28.5mm (11/8") diameter circle. 5.1mm 400
(Thick), with one 4.1mm diameter hole and a
7.9mm diameter centered counterbore.
SJ3763 Rigid backed circle with one hole Black, 20.6mm (13/16") diameter circle. 5.08mm 400
(Thick), with one 4.1mm diameter hole and a
7.9mm diameter centered counterbore.
SJ3764 Refer to SJ3481
SJ3765 Rigid backed circle with one hole Black, 14.3mm (9/16") diameter, with one 7.9mm 400
C Bored hole on a 4.1mm hole. 5.08mm (0.200")
tall.
SJ3766 Rigid backed rolls Black, 0.130" thick backing. Max. width 3". 400
SJ3767 Rigid backed square with 2 holes Black, 1.5" x 1.5" square with two 3.6 mm C Bored 400
holes, 25mm apart.
SJ3768 Rigid backed rolls Black, 0.130" thick backing. Max. width 3". 250
3MDual LockReclosable Fasteners for Transportation Industry
Selection Guide
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Pop-In Products – Color-Black
Product # Selection Guide Description Size Stem Density
SJ3209 Square top with pine tree stem Black, 26mm square top, with a 12mm long 250
pine tree stem, fits a 7.9mm round hole.
Same base as SJ3749.
SJ3221 Square top with single disk stem Black, Pop-In, single disk, fits a slot in a 250
(single disk stem similar to a cufflink) 2.4mm panel. Same base as SJ3731.
SJ3222 Square top with pine tree stem Black, 26mm square top with a 12mm long 250
pine tree stem, fits a 7mm round hole.
Same base as SJ3224.
SJ3224 Square top with pine tree stem Black 26mm square top with a 12mm long 400
pine tree stem, fits a 7mm round hole.
Same base as SJ3222.
SJ3226 Square top with rectangular base Black, fits a 6.5 x 10mm round hole in a 170
0.71 to 0.91mm (Thick) panel.
SJ3704 Square top with rectangular base Black, fits a 6.5 x 10 mm round hole in a 250
1.3 to 1.59mm (Thick) panel.
SJ3708 Square top with rectangular base Black, fits a 6.5 x 10mm round hole in a 400
1.8mm panel.
SJ3711 Square top with rectangular base Black, fits a 6.5 x 10mm round hole in a 400
0.7 to 0.9mm (Thick) panel.
SJ3713 Square top with rectangular base Black, fits a 6.5 x 10mm round hole in a 400
1.3 to 1.59mm (Thick) panel.
SJ3715 Square top on a round stem Black, fits a 10mm round hole in a 1.0mm 400
(Thick) panel.
SJ3719 Square top with rectangular base Black, fits a 6.5 x 10mm hole in a 0.7-0.9mm 250
panel.
SJ3731 Square top with a single disk Black, fits a slot in a 2.4mm panel. 400
Same base as SJ3221.
SJ3747 Rectangular top with twin stems Black, 20mm x 30mm; fits a 1.0-2.0mm panel. 400
SJ3748 Square top with long pine tree stem Black, 26mm square top, with a 16.5mm long 400
pine tree stem, fits a 7.9mm round hole.
SJ3749 Square top with short pine tree stem Black, 26mm square top, with a 12mm long 400
pine tree stem, fits a 7.9mm hole.
Same base as SJ3209.
3MDual LockReclosable Fasteners for Transportation Industry
Selection Guide
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Roll Goods
Stem Length of Roll
Product # Selection Guide Description Density (lineal yards)
SJ3223 Black, with non-woven backing for use with liquid adhesives, hot melts, etc. 250 50
SJ3243 Black, unheaded Type 400 Dual Lock™, laminated with acrylic foam tape 400 50
with a red non-silicone liner.
SJ3741 Black, Plain Back Dual Lock. 400 50
SJ3742 Black, Plain Back Dual Lock. 170 50
SJ3751 Black, 37 mil acrylic foam tape with red non-silicone liner. 400 50
SJ3752 Black, 37 mil acrylic foam tape with red non-silicone liner. 170 50
SJ3753 Black, with non-woven backing for use with liquid adhesives, hot melts, etc. 400 50
SJ3754 Black, with non-woven backing for use with liquid adhesives, hot melts, etc. 170 50
SJ3756 Black, Dual Lock with 80 mil (2.0 mm) medium density, white acrylic foam 170 45
tape with a red non-silicone treated liner.
SJ3757 Black, Dual Lock with 80 mil (2.0 mm) medium density, white acrylic foam 400 45
tape with a red non-silicone treated liner.
SJ3773 Black, 5 mil adhesive transfer tape with brown paper liner, 170 50
green lettering.
SJ3774 Black, 5 mil adhesive transfer tape with brown paper liner, 400 50
green lettering.
SJ3777 Black, 47 mil acrylic foam tape with red non-silicone liner. 400 50
SJ3780 Black, Plain Back. 250 50
SJ3781 Black, Dual Lock 37 mil acrylic foam tape with red non-silicone liner. 250 50
SJ3782 Black, 5 mil adhesive transfer tape with brown paper liner, 400 50
green lettering.
SJ3785 Black, 15 mil acrylic foam tape with red non-silicone liner. 400 50
SJ3787 Black, 15 mil acrylic foam tape with red non-silicone liner. 250 50
SJ3788 Black, 60 mil acrylic foam tape with red non-silicone liner. 400 50
SJ3789 Black, Dual Lock with 80 mil (2.0 mm) medium density, white acrylic foam 250 45
tape with a red non-silicone treated liner.
SJ4570 Clear, low profile with 5 mil low surface energy adhesive. 705 25 and 50
SJ4580 Clear, low profile with 15 mil clear acrylic foam tape. 705 50
3MDual LockReclosable Fasteners for Transportation Industry
Selection Guide
Printed in U.S.A.
©3M 2004 70-0709-3877-7 (3/04)
Recycled Paper
40% pre-consumer
10% post-consumer
- 10 -
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3M product, whether direct, indirect, special, incidental or consequential, regardless of the legal theory
asserted, including warranty, contract, negligence or strict liability.
Limitation of Liability
This Industrial Adhesives and Tapes Division product was manufactured under a 3M quality system registered to ISO 9001 standards.
ISO 9001
To request additional product information or to arrange for sales assistance, call toll free 1-800-362-3550
or visit www.3M.com/adhesives. Address correspondence to: 3M Industrial Adhesives and Tapes Division,
Building 21-1W-10, 900 Bush Avenue, St. Paul, MN 55144-1000. Our fax number is 651-778-4244. In
Canada, phone: 1-800-364-3577. In Puerto Rico, phone: 1-787-750-3000. In Mexico, phone: 52-70-04-00.
For Additional
Information
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3
Industrial Business
Industrial Adhesives and Tapes Division
3M Center, Building 21-1W-10, 900 Bush Avenue
St. Paul, MN 55144-1000

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