Custom
M3
Heatsink
Spring
Screws
|
21mm
Length,
Phillips
Drive,
Zinc
Phosphate
Custom-engineered
M3
heatsink
spring
screws.
Standard
21mm
length,
7mm
thread.
Modify
length,
plating,
drive
type,
and
material
for
your
application.
Get
a
quote.
This
product
line
represents
our
standard
and
customizable
heatsink
spring
screws,
designed
for
engineers
requiring
specific
fastening
solutions
in
thermal
management
systems.
The
base
model
provides
exceptional
performance,
while
our
extensive
customization
capabilities
allow
you
to
optimize
the
screw
for
your
exact
application,
ensuring
perfect
fit,
function,
and
reliability
in
even
the
most
demanding
environments.
Technical
Specifications
|
Total
Length
|
21.0
mm
(Standard)
|
|
Thread
Length
|
7.0
mm
(Standard)
|
|
Thread
Diameter
|
M3
(Metric)
|
|
Drive
Type
|
Cross
Recessed
(Phillips
#1)
|
|
Head
Style
|
Pan
Head
|
|
Material
|
High-Carbon
Steel
(Grade
4.8)
|
|
Spring
Material
|
Stainless
Steel
(Grade
304)
|
|
Surface
Treatment
|
Zinc
Phosphate
Coating
(Phosphating)
|
|
Customization
|
Dimensions,
Drive
Type,
Material,
Surface
Treatment,
Spring
Force
|
Primary
Uses
&
Applications
Ideal
for
applications
where
standard
fasteners
may
not
suffice
or
where
specific
environmental
or
design
constraints
exist:
-
Prototype
Development:
Get
exactly
the
screw
you
need
for
your
new
design.
-
High-Corrosion
Environments:
Specify
stainless
steel
or
nickel
plating
for
increased
resistance.
-
High-Reliability
Systems:
Upgrade
to
higher-grade
steel
for
critical
applications.
-
Automated
Assembly:
Optimize
drive
type
(e.g.,
Torx)
for
robotic
installation.
-
Aesthetic
Matching:
Custom
plating
colors
to
match
product
interiors.
How
to
Use
-
Confirm
the
threaded
standoffs
on
your
PCB
match
the
custom
thread
diameter
and
pitch
of
your
screw
order.
-
Align
the
heatsink
and
place
the
thermal
interface
material.
-
Insert
the
custom
spring
screw
and
begin
threading
by
hand.
-
Using
the
appropriate
driver
bit
for
your
chosen
drive
type,
tighten
the
screws
in
a
diagonal
pattern.
-
Tighten
until
the
spring
is
sufficiently
compressed
to
hold
the
heatsink
firmly
in
place.
The
required
torque
may
vary
based
on
custom
spring
force;
refer
to
specific
datasheets
provided
with
custom
orders.
-
Always
avoid
over-torquing.
The
installed
state
should
show
even
compression
across
all
springs.
Our
Advantages
-
More
than
20
years
of
screw
production
experience
and
non-standard
screw
custom
development
experience,
providing
cost-effective
solutions
and
helping
solve
fastener
supply
chain
challenges.
-
Precise
production
equipment.
We
use
imported
equipment
from
Taiwan
to
produce
precision
screws
and
hardware
accessories,
with
free
sample
testing
for
compatibility
verification.
-
Complete
management
system
with
multiple
strict
quality
control
checks
for
every
batch
of
products.
-
Dedicated
account
management
for
seamless
collaboration
and
system-supporting
services.
Support
and
Services
Our
team
of
knowledgeable
professionals
provides
comprehensive
support
for
all
aspects
of
our
Spring
Screws,
including:
-
Selection
advice
to
ensure
the
right
type
and
size
for
your
project
-
Guidance
on
proper
installation
techniques
-
Detailed
product
specifications
and
material
safety
data
sheets
-
Step-by-step
installation
guides
and
troubleshooting
assistance
-
Maintenance
tips
and
best
practices
to
extend
product
life
Packing
and
Shipping
Our
Spring
Screws
are
carefully
packaged
to
ensure
perfect
condition
upon
arrival:
-
Secured
in
durable,
moisture-resistant
plastic
bags
inside
sturdy
cardboard
boxes
-
Cushioned
with
packing
materials
to
prevent
movement
during
transit
-
Clear
labeling
with
product
information
for
easy
identification
-
Larger
orders
palletized,
shrink-wrapped,
and
strapped
securely
-
Reliable
courier
services
with
tracking
information
provided
Customization
Available:
Our
factory
accepts
customized
drawings.
Contact
us
to
discuss
specific
requirements,
certifications,
or
other
parameters
for
your
project.
