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| Price | Negotiable |
| MOQ | 50000 |
| Delivery Time | 15-20 work days |
| Brand | guanbiao |
| Place of Origin | China |
| Certification | ISO9001 |
| Model Number | M5*20 |
| Packaging Details | Plastic bag + carton + pallet |
| Payment Terms | T/T |
| Supply Ability | 5000000 |
| Corrosion Resistance | High | Place of Origin | China |
| Packaging Details | Plastic bag + carton + pallet | Country Of Origin | China |
| Durability | Long-lasting | Specification | M6*18 |
| Process | Cold Forging | Model Number | M5*20 |
| Thread Type | Coarse | Supply Ability | 5000000 |
| Feature | Cold Forging | Certification | ISO9001 |
| Brand Name | guanbiao | Payment Terms | T/T |
| Thread Style | Standard, Customizable | Advantage | Easy tapping and instore |
| Price | Negotiable | Delivery Time | 15-20 work days |
| Single | 1g/pcs | Minimum Order Quantity | 50000 |
| Groove | Phillips pins | Used For | Anti loosening measures |
| Tooth Length | Customizable |
Reliable button head self-tapping screws with Type B blunt point for sheet metal & plastic. Phillips socket drive, zinc plated steel. No pre-drill needed. Ideal for enclosures, brackets & DIY. M3, M4, M5 sizes.
Achieve clean, low-profile fastening in sheet metal and plastic assemblies with our **Button Head Self-Tapping Screws featuring a Type B (Blunt) Point**. Designed for direct thread-forming into **pre-punched or pre-drilled holes in thin materials**, the blunt end with tapered starting threads ensures strong engagement without pushing material aside or deforming thin sheets. The **low-profile button head** provides a smooth, rounded finish, reducing snagging, while the **internal hex socket drive** allows for high torque application and tool accessibility in confined spaces. Zinc plating offers essential corrosion protection for indoor and general industrial use.
TECHNICAL SPECIFICATIONS |
|
| Material | Carbon Steel (Grade 8.8 equivalent) |
| Drive Type | Phillips |
| Head Style | Button Head (Low-profile dome, rounded top) |
| Point Type | Type B Self-Tapping Point (Blunt end with tapered starting threads for cutting into pre-punched/drilled holes) |
| Surface Finish | Zinc Plating (Yellow Chromate standard, Clear/White optional - RoHS compliant) |
| Features | Partial thread for clamping, high tensile strength (700 MPa min) |
| Thread Type | Machine Screw Thread (Metric Coarse) - Forms mating thread in substrate |
Primary Uses & Applications:
*
Sheet
metal
fabrication
(electrical
enclosures,
control
boxes,
brackets).
*
Electronics
assembly
(PCB
mounts,
server
racks,
component
brackets).
*
Joining
plastic
housings
&
components
(ABS,
nylon,
polycarbonate).
*
HVAC
ducting
&
equipment
assembly.
*
Automotive
interior
trim
&
accessory
mounting.
*
Machinery
guards
&
covers.
*
General
DIY
projects
involving
thin
metal
or
plastic.
Surface
Treatment/Finishes:
*
**Zinc
Plating
(Yellow
Chromate):**
Standard
finish
offering
good
corrosion
resistance
for
indoor
and
protected
environments.
Yellow
color
aids
visibility.
*
**Zinc
Plating
(Clear/White
Chromate):**
Alternative
for
a
brighter,
less
visible
finish.
Slightly
lower
corrosion
resistance
than
yellow.
*
**Black
Oxide:**
Mild
corrosion
resistance
and
dark
appearance
for
reduced
glare.
How to Use:
1.
**Prepare
Hole:**
**A
pilot
hole
is
REQUIRED.**
Drill
a
hole
slightly
smaller
than
the
screw's
**minor
diameter**
(core
diameter
-
approx.
70-85%
of
nominal
shank
diameter)
in
the
top
material.
Hole
size
is
critical
for
Type
B
performance.
2.
**Align:**
Position
materials.
Insert
screw
through
the
top
material
hole
into
the
base
material.
3.
**Drive:**
Insert
the
**correct
size
hex
key**
(Allen
wrench)
or
hex
bit
into
the
socket.
Apply
firm
pressure
and
drive
the
screw.
The
Type
B
blunt
point
will
engage
the
hole
edges
and
**cut
clean
mating
threads**
into
the
base
material.
4.
**Tighten:**
Continue
driving
until
the
button
head
seats
firmly
against
the
top
material
surface.
**Avoid
over-tightening**,
which
can
strip
the
formed
threads,
especially
in
plastic.
