Cold Forging Production Lines...............................................

Top Screw knows “accuracy & speed” are the most important and necessary conditions for a production line. So our Forging Department uses the most precise and advanced High-Tech Multi-Process Cold Header equipments, from 1-die-2-blow to 6-die-6-blow, so we can produce various fasteners from Ø3mm. Our production is around 12 million by 8 hours per day and 24 working days per month. We trust “high quality production lines” can supply customers more competitive products by elastic delivery.

 FACTORY-6.jpg  
   
 Automatic Thread Tapping Lines.............................................

Top Screw Tapping Department was founded in 2004. We have Full Automatic Thread Tapping Machines and Second Process facilities.  These equipments used for all kinds of special screws, nuts, insert nuts and so on. Before the production, we tap some samples first, then measure and ensure the dimensions meet the working order. During the production, we change taps and tools after a fixed quantity. When the part is finished, we examine full sizes by Image Display Sorting Machine and 100% inner thread by hand.

 FACTORY-7.jpg  

 
Automated Warehouse...............................................................

We have average over 500 thousand pieces of each standard product in stock and confidence to supply the goods within the shortest time.

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About Top Screw
The Industrial development is like an exposition of technology. The technology advances with time, but parts cannot become a product without fasteners like screws, nuts, rivets…etc. It might only play a small part in the product, but it is crucial to the quality of the products, so fasteners are also called “
Basic Components of Industries”.
 
Top Screw has always been a pioneer in the development of fasteners, such as blind rivets, blind rivet nuts, customized fasteners, in Taiwan.
For more than 30 years, Top Screw has always believed and practiced“PRACTICALITY, RESPONSIVENESS, and UNLIMITED IMPROVEMENT”offering quality and cost effective fasteners supporting customers in global market.

TOP SCREW METAL CORP. MILESTONE

1975 Top Screw Metal Corporation was founded during the leaping phase of industrialization in Taiwan. Top Screw started by manufacturing semi-tubular rivets and screws for hand bags and luggage industries.
1981 Top Screw has specialized in manufacturing threaded binding posts, bolts, and rivets for bicycling, electronics, cutleries, and furniture products. This set up a strong foundation of Top Screw for future growth and expansion.
1983 Top Screw has liberated Cutlery industries in Taiwan from the grasp of Japan by introducing the male and female compression rivets, which was also rewarded for a patent.
1985  Top Screw has became well known for specializing in tubular rivets, internally threaded bolts and post with excellent quality and on-time delivery by cold heading machines in Taiwan. our Business has increased steadily.
1989 Top Screw has expanded from the Nan Yau Factory to the new Tay-ho Facility, which was twice larger than previous capacity. Top Screw products have also exported to Europe, America, the Middle East, Southeast and Northwest Asia.
1990 The monthly productions in Top Screw have exceeded 50 million pieces after high-tech multi-stroke cold heading machines were adapted.
1993

Top Screw has invested huge resource in R&D for new products, quality, and delivery timing when annual sales reached 3.5million NTD.

Blind Rivet nut has become the major product of Top Screw, and lead Top Screw entering into automotive market.

1998 Top Screw has approved by ISO-9001.
2001

Top Screw has accredited to ISO-9001:2000 again.

Top screw has adapted"" Computerised Torque and Tensile testing machine" to ensure the quality of Blind Rivet nuts.

2003 Top Screw has introduced “Self Tapping threaded Insert” in the product list. Tapping department has established in Top Screw to ensure the tapping progress, timing and quality is in control.

Sony has begun to purchase “Self-Clinching Nut” from Top Screw.

2005 Top Screw has adopted “Plating thickness testing machine” for plating quality.

Top Screw has improved Q.C. result by adopting “Micro Vicker Hardness Tester”, “3D Profile Projector” and “Image Display Sorting Machine”.

Top Screw has established cold forging department in Ho-May town, and all the cold forging facilities has moved from Tay-Ho to Ho-May.

Top Screw has introduced “Speed Pin Rivets” and “Bolt Rivet Nuts” in the product list.

2008 Top Screw was accredited to ISO14001:2004.

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ADVANTAGES OF BLIND RIVET:

-BLIND RIVETS PROVIDE STRONG HOLDING FOR APPLICATION.
-BLIND RIVETS ARE LOW IN COST COMPARE WITH BOLT AND NUT.
-BLIND RIVETS ARE IDEAL FOR WIDE RANGE APPLICATION.
-BLIND RIVETS ARE AVAILABLE IN DOME, COUNTERSUNK OR LARGE FLANGE STYLE.
-BLIND RIVETS ARE FAST AND EASY TO INSTALL.
-BLIND RIVETS ARE IDEAL FOR RUST RESISTANCE APPLICATION.
-BLIND RIVETS ARE IDEAL FOR LIGHT WEIGHT USAGE.

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BLIND JACK NUT
THE BLIND JACK NUT IS AN ECONOMICAL BLIND FASTENER DESIGNED FOR ASSEMBLY LIND USE IN THIN, SOFT OR BRITTLE MATERIALS. WHEN TIGHTENED, THEIR BODY COLLAPSES TO FORM LEGS WHICH GRIP THE INSIDE OF THE MOUNTING SURFACE, LEAVING A PERMANENT REUSABLE THREADED INSERT. STANDARD BLIND JACK NUT ARE MANUFACTURED OF STEEL WITH A COMMERCIAL ZINC PLATING. ALL BLIND JACK NUTS CAN BE SUPPLIED WITH BRASS COATED WHICH ASSIST GALVANIC CORROSION CONCERNS.

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MULTI-GRIP BLIND RIVET

MULTI-GRIP BLIND RIVET-topscrew.jpg

MULTI-GRIP BLIND RIVET-1-topscrew.jpg

MULTI-GRIP BLIND RIVET-2-topscrew.jpg

MULTI-GRIP BLIND RIVET-DRAWING-TM-topscrew.jpg

 

 

D

HOLE SIZE

L

W

H

E

GRIP RANGE

 

STRENGTH

(KG-F)

 

DOME

CSK

P/N

RIVET DIA.

DRILLING DIA.

LENGTH

MANDREL DIA.

FLANGE DIA.

FLANGE THICKNESS

TENSILE

SHEAR

TM408

3.2(1/8")

3.4

8.0

1.9

6.4

1.0

0.8-4.7

110

90

TM412

12.5

4.0-8.5

TM510

4.0(5/32")

4.2

10.8

2.3

8.0

1.3

1.5-6.3

160

150

TM513

13.5

4.0-9.5

TM610

4.8(3/16")

5.0

10.5

2.8

9.6

1.5

1.3

1.6-6.4

270

190

TM615

15.9

4.8-11.2

 

 

 

 

 

 

 

 

 

★CLICK ME TO SEE HOW TO INSTALL THE MULTI-GRIP BLIND RIVET

 

MATERIAL AVAILABLE FOR MULTI-GROP BLIND RIVETS: 
ALUMINUM 5052/ MANDREL MATERIAL: STEEL/ ZINC PLATED

 

SUITABLE APPLICATION:

  • AUTOMOBILES, MOTORCYCLES, ELECTRICAL APPLIANCES, LIGHTING FIXTURES, ETC.
  • MAKES THE GAP OF JOINING OBJECTS EXPAND FIRST THEN RIVETS THEM CLOSELY.
  • IT WILL NOT BE LOOSENED BY SHANK.
  • THE INNER AND OUTER JOINS ARE GOOD LOOKING.
  • HELPS REDUCE STOCK RANGE.
  • PARTICULAR DOME HEADS ACCEPTABLE.
  • FINISH AVAILABLE IN A MULTIPLE OF COLORS.

★OTHER SIZE, MATERIAL ARE AVAILABLE UPON REQUEST

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SPECIAL BLIND RIVET SERIES-STRETCH FOLDING BLIND RIVET

STRETCH FOLDING BLIND RIVET-topscrew.jpg    

STRETCH FOLDING BLIND RIVET-1-topscrew.jpg  

STRETCH FOLDING BLIND RIVET-DRAWING-TS-topscrew.jpg  

★CLICK ME TO SEE HOW TO INSTALL THE STRETCH FOLDING BLIND RIVET

MATERIAL AVAILABLE FOR STRETCH FOLDING BLIND RIVETS: 
ALUMINUM 5052/ MANDREL MATERIAL: ALUMINUM 5056 (ALL MEASUREMENT ARE IN mm)

POSITIVE:

RATTLE FREE FASTENER

CORROSION RESISTANT:

ALL ALUMINUM CONSTRUCTION

MULTIGRIP:
1. ADJUSTS TO A WDE VARIATION OF SUBJECT'S THICKNESS.
2. FINISH AVAILABLE IN A MULTIPLE COLOR.

SUITABLE APPLICATIONS:
1. SUPPORTS BRTTLE THIN SOFT OR DUCTILE MATERIALS & FUNCTIONS WHEN USED WITH OVERSIZED, ISALIGNED OR IRREGULARLY SHAPED HOLES.
2. THE STRETCH FOLDING BLIND RIVET FORMS THREE LARGE FOLDING LEGS THAT CREATE EXCELLENT CLAMPOING-UP & A LARGE BLIND SIDE BEARING SURFACE.

★OTHER SIZE, MATERIAL ARE AVAILABLE UPON REQUEST

 

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CAGE NUT

CAGE NUT SERIES-topscrew.jpg CAGE NUT DRAWING-topscrew.jpg  

Size-No

TYPE

A

B

C

D

E

F

G

T

M5

LOWER GRIP

13.0mm

13.3mm

6.1mm

9.0mm

8.2mm

11X11X4.5t

0.4mm

M5

HIGHER GRIP

13.0mm

13.3mm

6.1mm

10.0mm

8.2mm

11X11X4.5t

0.4mm

M6

LOWER GRIP

13.0mm

13.3mm

6.1mm

9.0mm

8.2mm

11X11X4.5t

0.4mm

M6

HIGHER GRIP

13.0mm

13.3mm

6.1mm

10.0mm

8.2mm

11X11X4.5t

0.4mm

M8

LOWER GRIP

15.7mm

15.7mm

8.1mm

11.0mm

10.6mm

11X11X5.5t

0.5mm

M8

HIGHER GRIP

15.7mm

15.7mm

8.1mm

11.5mm

10.6mm

11X11X5.5t

0.5mm

M10

LOWER GRIP

15.7mm

15.7mm

8.1mm

11.0mm

10.6mm

11X11X5.5t

0.5mm

M10

HIGHER GRIP

15.7mm

15.7mm

8.1mm

11.5mm

10.6mm

11X11X5.5t

0.5mm

 

MATERIAL AVAILABLE:
CARBON SPRING STEEL

SURFACE FINISH AVAILABLE:
YELLOW ZINC, ZINC, BLACK.

HARDNESS:
HRC 40-50.

ADVANTAGES OF CAGE NUT:
1. CAGE NUT CAN BE ASSEMBLED EASILY INTO POSITION WITHOUT THE NEED FOR SPECIAL TOOLS.

★OTHER SIZE, MATERIAL ARE AVAILABLE UPON REQUEST

 

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SPEED PIN RIVET

SPEED PIN RIVET-2-topscrew.jpg  

SPEED PIN RIVET 005.jpg  

SPEED PIN RIVETS.jpg     

MATERIAL AVAILABLE FOR SPEED PIN RIVET (DRIVE PIN RIVET): 
BODY: ALUMINUM 2117 /STAINLESS STEEL 302 (INOX A2/18-8)
PIN: ALUMINUM 2024/STAINLESS STEEL 304 (INOX A2/18-8)

FINISH SURFACE AVAILABLE FOR SPEED PIN RIVET (DRIVE PIN RIVET):
PLATING: CR3 WHITE ZINC PLATED/ CR3 YELLOW ZINC PLATED/ CR3 BLACK ZINC PLATED
ANODIZED/CLEAN

ADVANTAGES OF SPEED PIN RIVET (DRIVE PIN RIVET):
1. SPEED PIN RIVET IS FAST AND EASY TO INSTALL.
2. NO SPECIAL INSTALLATION TOOL IS REQUIRED FOR SPEED PIN RIVET, JUST A HAMMER WILL DO.
3. VARIOUS MATERIALS ARE AVAILABLE FOR SPEED PIN RIVET.
4. VARIOUS HEAD STYLES ARE AVAILABLE FOR SPEED PIN RIVET.
5. SPEED PIN RIVET IS EASY TO UNINSTALL, AND IT WILL NOT DAMAGE THE APPLICATION SURFACE
6. SPEED PIN RIVET CAN BE RUST RESISTANT.
7. SPEED PIN RIVET CAN BE APPLIED TO WIDE THICKNESS.
8. THE APPEARANCE LOOKS GOOD AFTER INSTALLATION.

★OTHER SIZE, MATERIAL ARE AVAILABLE UPON REQUEST
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STAINLESS STEEL(INOX)/STAINLESS STEEL(INOX) BLIND RIVET

BLIND RIVET SERIES - SS-SS BLIND RIVET-topscrew.jpg    

P02  

MATERIAL AVAILABLE FOR STAINLESS STEEL/ STAINLESS STEEL BLIND RIVETS TS. SSASS. SERIES:

RIVET:   STAINLESS STEEL 302/316 (INOX A2/A4/18-8/18-10)                                        
SHAFT: 
STAINLESS STEEL 302/316 (INOX A2/A4/18-8/18-10)

FINISH SURFACE AVAILABLE:
RIVET: SELF COULOURED                                        
SHAFT: SELF COULOURED                   

ADVANTAGES OF STAINLESS STEEL/STAINLESS STEEL BLIND RIVET:
1. STAINLESS STEEL/STAINLESS STEEL BLIND RIVETS PROVIDE STRONG HOLDING FOR APPLICATION.
2. STAINLESS STEEL/STAINLESS STEEL BLIND RIVETS ARE LOW IN COST COMPARE WITH BOLT AND NUT.
3. STAINLESS STEEL/STAINLESS STEEL BLIND RIVETS ARE IDEAL FOR WIDE RANGE APPLICATION.
4. STAINLESS STEEL/STAINLESS STEEL BLIND RIVETS ARE AVAILABLE IN DOME, COUNTERSUNK OR LARGE FLANGE STYLE.
5. STAINLESS STEEL/STAINLESS STEEL BLIND RIVETS ARE FAST AND EASY TO INSTALL.
6. STAINLESS STEEL/STAINLESS STEEL BLIND RIVETS PROVIDE HIGH TENSILE AND SHEAR STRENGT COMPARE WITH ALUMINUM  OR STEEL.
7. STAINLESS STEEL/STAINLESS STEEL BLIND RIVETS ARE IDEAL FOR RUST RESISTANCE APPLICATION.

★OTHER SIZE, MATERIAL ARE AVAILABLE UPON REQUEST

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STAINLESS STEEL(INOX)/STEEL BLIND RIVET

BLIND RIVET SERIES - SS-S BLIND RIVET-topscrew.jpg    

P02

MATERIAL AVAILABLE FOR STAINLESS STEEL/ STEEL BLIND RIVETS TS.SSAS. SERIES:

RIVET:   STAINLESS STEEL 302/316 (INOX A2/A4/18-8/18-10)
SHAFT:  STEEL 1018 ~ 1022


FINISH SURFACE AVAILABLE:
RIVET:  SELF COULOURED

SHAFT:  CR3 WHITE ZINC PLATED/ CR3 YELLOW ZINC PLATED

ADVANTAGES OF STAINLESS STEEL/STEEL BLIND RIVET:
1. STAINLESS STEEL/STEEL BLIND RIVETS PROVIDE STRONG HOLDING FOR APPLICATION.
2. STAINLESS STEEL/STEEL BLIND RIVETS ARE LOW IN COST COMPARE WITH BOLT AND NUT.
3. STAINLESS STEEL/STEEL BLIND RIVETS ARE IDEAL FOR WIDE RANGE APPLICATION.
4. STAINLESS STEEL/STEEL BLIND RIVETS ARE AVAILABLE IN DOME, COUNTERSUNK OR LARGE FLANGE STYLE.
5. STAINLESS STEEL/STEEL BLIND RIVETS ARE FAST AND EASY TO INSTALL.
6. STAINLESS STEEL/STEEL BLIND RIVETS PROVIDE HIGH TENSILE AND SHEAR STRENGTH COMPARE WITH ALUMINUM  OR STEEL.
7. STAINLESS STEEL/STEEL BLIND RIVETS ARE IDEAL FOR RUST RESISTANCE APPLICATION.

★OTHER SIZE, MATERIAL ARE AVAILABLE UPON REQUEST

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