User Guide

108
BONDING
TAPES
PERFORMANCE
LABEL
MATERIALS
COMMERCIAL
GRAPHICS
RELEASE
LINERS AND
PRINTABLE
FILMS
SINGLE COATED
TAPES
RECLOSABLE
FASTENERS
SPECIALTY
PRODUCTS
FLEXOGRAPHIC
MOUNTING
Product
number
3M
™
Dual Lock
™
- Piece Parts with Functional Bases
Product
Type
1
Dimensions
2
(length x width)
or diameter for
circular parts
Functional
Size/Area
square inches
(square cm)
CommentsEngaged
Thickness
3
inches (mm)
Notes:
* Suggest 4 square inches of fastener per pound of load as a starting point for evaluation of long term performance. Suggest type 250 engaged to type 250 as a starting point for
evaluations. Tensile strength increases approximately in the following order: 170/250 <250/250 ≤ 170/400 < 250/400.
* The information provided is considered representative only for use in narrowing the possibilities of 3M™ Dual Lock™ piece parts to be considered for further evaluation, and should
not be used for specification purposes.
* User is responsible for determining whether the 3M product is fit for the desired end use. Refer to specific product technical datasheets for more detailed product performance information.
* All 3M™ Dual Lock™ Piece parts are comprised completely of black polypropylene
Footnotes:
1) Type 400 is not recommended to be engaged to other type 400 fasteners. As well, type 170 should not be engaged with type 170. Engagement strength is dependent upon the area
engaged and number of stems engaged. The engagement strength for the same area a
2) The actual 3M™ Dual Lock™ area available for (dis)engagement may be less than the part dimension. This should be taken into consideration when designing how much 3M™ Dual Lock™
will be required for a specific application.
3) Engaged thickness is for the shown product engaged to 3M™ Dual Lock™ Reclosable Fasteners SJ3781 (a type 250 Dual Lock™ with an acrylic adhesive backcoating). You can mix
products with different backcoatings (standard pressure sensitive adhesives or via our 3M™ Dual Lock Mix and Match Program) to obtain a greater variety of engaged thicknesses. Any
of these 3M™ Dual Lock™ Reclosable Fasteners can be engaged with 3M™ Scotchmate™ Reclosable Fasteners, providing a quick grab closure with high strength and limited life.
Pine tree shaped push-in stem for insertion into wood and similar substrates over a range of thicknesses.
SJ3209 250 26 x 26 mm 1.04 (6.7) 0.293 (7.44) 12 mm (0.49”) long base stem, designed to fit a
SJ3749 400 7.9 to 8.4 mm diameter hole.
SJ3222 250 26 x 26 mm 1.04 (6.7) 0.293 (7.44) 12 mm long base stem, designed to fit a 7 to 7.5 mm
SJ3224 400 diameter hole.
SJ3748 400 26 x 26 mm 1.04 (6.7) 0.293 (7.44) 16.5 mm long base stem, designed to fit a 7.9 to 8.4 mm
diameter hole.
SJ3266 170 26 x 26 mm 1.04 (6.7) 0.293 (7.44) 12.74 mm long base stem, designed to
SJ3267 250 fit an 8.20 to 8.50 mm diameter hole.
SJ3268 400
SJ3743 170 20 mm x 20 mm 0.62 (4.0) 0.293 (7.44) Fits a slot in a 3.1 - 3.25 mm thick panel that is 18 mm in
SJ3705 250 diameter. The shaft (stem of the cone) is 3.25 mm tall
and 4 mm wide.
SJ3221 250 20 mm x 20 mm 0.62 (4.0) 0.272 (6.91) Fits a slot in a 2.65 mm thick panel that is 18 mm in
SJ3731 400 diameter. The shaft (stem of the cone) is 2.65 mm tall
and 4 mm wide.
SJ3715 400 26 x 26 mm 1.04 (6.7) 0.293 (7.44) Fits 0.97 to 1.0 mm thick panel.
SJ3704 250 26 x 26 mm 1.04 (6.7) 0.293 (7.44) Fits a 1.30 to 1.59 mm thick panel.
SJ3713 400
SJ3226 170 26 x 26 mm 1.04 (6.7) 0.283 (7.19) Fits a 0.71 to 0.91 mm thick panel.
SJ3719 250
SJ3711 400
Single round cone shaped base for sliding into a key hole slot
Snap-in base for a 10.0 mm diameter round hole
Snap-in base for 6.5 x 10 mm rectangular hole