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Tamper Proof Button Head Cap Screws（Surface Treatment：Trivalent Chromate）

Tamper-proof screws
Screws that cannot be easily removed unless a special tool is used. They are effective in preventing theft, disassembly, mischief, information leakage, accidents, etc.
They are used to protect hazardous parts such as playground equipment, window shields, attractions, toys, switch boards, as well as security parts and expensive equipment.
Torx, one side, no recess, two-hole, tri-wing, with pin, Fujiyama, TRF and the like are available.

21 items

: 30; 45; 60

Days to Ship	All Same day 4 Day(s) or Less 5 Day(s) or Less 6 Day(s) or Less 7 Day(s) or Less 8 Day(s) or Less 9 Day(s) or Less 10 Day(s) or Less 11 Day(s) or Less 12 Day(s) or Less

TRX Flat Head Machine Screw

TRX Flat Head Machine Screw【300-3,000 Pieces Per Package】

SUNCO

[Material] Stainless steel
[Surface treatment] None, non-chrome black, trivalent chromate, non-chrome plating white, trivalent black, trivalent white, bright chromate plating, chromate plating, black chromate, nickel plating, chrome plating, trivalent stainless steel coating, German brown plating, black paint

Standard Price:	SGD 41.01-
Days to Ship:	4 Day(s) or more

TRX Pan Head Machine Screw

TRX Pan Head Machine Screw【400-5,000 Pieces Per Package】

SUNCO

[Material] Stainless steel
[Surface treatment] None, non-chrome black, trivalent chromate non-chrome plating white, trivalent black, trivalent white, bright chromate plating, bright chromate plating, chromate plating, black chromate, nickel plating, chrome plating, trivalent stainless steel coating, coating locking agent (ALOK), black paint

Standard Price:	SGD 34.04-
Days to Ship:	4 Day(s) or more

Countersunk Head LR Machine Screw【500-2,000 Pieces Per Package】

OSP

[Basic shape] Flat head
[Mount hole shape] LR (slot recess)
[Basic shape] Standard (round)
[Material] Steel
[Thread ridge type] Metric coarse
[Tip shape] Flat tip
[Additional shape] Standard
[Sales unit] box / pack
[Thread type] full-thread screw
[Nominal designation (M)] 2 3 4 5
[Length (mm)] 5 6 8 12 16
[Pitch (mm)] 0.4 0.5 0.7 0.8
[Surface treatment] None, trivalent chromate, trivalent black, trivalent white, bright chromate plating, chromate plating, black chromate, nickel plating, chrome plating
[Usage] Standard tamper prevention.

Days to Ship: 4 Day(s) or more

Days to Ship:	4 Day(s) or more

TORX Bored Plate Bolt (TORX plate cap) (new JIS) Nissan-Made Screw

SUNCO

[Nominal] 4 5 6
[Material] Steel
[Surface Processing] Bare / Trivalent White / Chromate Plating

Standard Price:	SGD 0.96
Days to Ship:	7 Day(s) or more

On Sale Till 31/03/2025

TRX Tamper-proof Pan Head Machine Screw

TRX Tamper-proof Pan Head Machine Screw【300-5,000 Pieces Per Package】

SUNCO

[Material] Stainless steel
[Surface treatment] None, non-chrome black, trivalent chromate non-chrome plating white, trivalent black, trivalent white, bright chromate plating, chrome plating, green chromate, black chromate, nickel plating, chrome plating, parker, trivalent stainless coating, copper CU plating, German brown plating, black paint, tempered color (dark)

Standard Price:	SGD 40.36-
	Special Price
Days to Ship:	4 Day(s) or more

TORX Bored Button Bolt (TORX button cap) Nissan-Made Screw

SUNCO

[Nominal] 4 5 6 8 10
[Material] Steel · Stainless Steel
[Surface Processing] None / Bare / Trivalent White

Standard Price:	SGD 0.38-
Days to Ship:	7 Day(s) or more

On Sale Till 31/03/2025

TRX Tamper-proof Truss Machine Screw

TRX Tamper-proof Truss Machine Screw【300-4,000 Pieces Per Package】

SUNCO

[Material] Stainless steel
[Surface treatment] None, non-chrome black, trivalent chromate, non-chrome plating white, trivalent black, trivalent white, bright chromate plating, chromate plating, black chromate, nickel plating, chromate plating, trivalent stainless steel coating, CU copper plating German, brown plating, black paint with matte black head paint, black paint, temper color (dark).

Standard Price:	SGD 43.37-
	Special Price
Days to Ship:	4 Day(s) or more

Pan Head LR Machine Screw

Pan Head LR Machine Screw【500-5,000 Pieces Per Package】

OSP

[Detailed shape] Pan head
[Mount hole shape] LR (slot recess)
[Basic shape] Standard (round)
[Material] Steel
[Thread ridge type] Metric coarse
[Tip shape] Flat tip
[Additional shapes] Standard
[Sales unit] box / pack
[Thread type] Full-thread screw
[Nominal designation (M)] 2 3 4 5
[Length (mm)] 4 6 8 10 12 16 20 25 35
[Pitch (mm)] 0.4 0.5 0.7 0.8
[Surface treatment] None, trivalent chromate, trivalent black, trivalent white, bright chromate plating, chromate plating, black chromate, nickel plating, chrome plating
[Usage] Standard tamper prevention.

Standard Price:	SGD 29.30-
Days to Ship:	4 Day(s) or more

Slotted Flat Small Screws

Slotted Flat Small Screws【120-7,000 Pieces Per Package】

SUNCO

[Materials]SWCH equivalent SUS304 equivalent, brass
[Surface treatment] None, non-chrome plating white, trivalent chromate plating white, trivalent black, trivalent white, bright chromate plating, chromate plating, bright chromate, nickel plating, trivalent stainless coating.

Volume Discount

CAD ：: 2D / 3D

Standard Price:	SGD 43.95-
Days to Ship:	4 Day(s) or more

Weld Bolt

Weld Bolt【50-2,500 Pieces Per Package】

SUNCO

[Materials] stainless steel
[Surface treatment] None, trivalent chromate, non-chrome plating white, trivalent black, trivalent white, bright chromate plating, chromate plating, black / white chromate

Standard Price:	SGD 30.50-
Days to Ship:	4 Day(s) or more

TRX Small Truss Screw

TRX Small Truss Screw【150-2,000 Pieces Per Package】

SUNCO

Standard Price:	SGD 35.66-
Days to Ship:	4 Day(s) or more

TRX Tamper-proof Flat Head Machine Screw

TRX Tamper-proof Flat Head Machine Screw【400-6,000 Pieces Per Package】

SUNCO

Standard Price:	SGD 43.95-
Days to Ship:	4 Day(s) or more

On Sale Till 31/03/2025

Low Head Screw with TORX Hole

Low Head Screw with TORX Hole【100 Pieces Per Package】

SUNCO

[Material] Stainless steel
[Surface treatment] None, trivalent white, bright chromate plating

Standard Price:	SGD 39.55
	Special Price
Days to Ship:	11 Day(s) or more

Cross-pin pan-head screw small (trivalent chromate)

Cross-pin pan-head screw small (trivalent chromate)【27-65 Pieces Per Package】

TRUSCO NAKAYAMA

[Features]
· With pin at center of cross slots, and so cannot be removed with normal tools.

Standard Price:	SGD 14.46-
Days to Ship:	4 Day(s) or more

TRF/Tamper-Proof Screw, Iron Cross Pin, Small Pot Screw

TRF/Tamper-Proof Screw, Iron Cross Pin, Small Pot Screw【100 Pieces Per Package】

SUNCO

[Nominal] 3 4 5 6
[Material] Iron
[Surface Processing] Trivalent White

Standard Price:	SGD 18.89-
Days to Ship:	7 Day(s) or more

Clamping Bolt Checkle

Clamping Bolt Checkle【300-2,000 Pieces Per Package】

KYUHI SEIRA

[Detailed shape] Standard
[Mount hole shape] None
[Basic shape] Standard (round)
[Material] Steel
[Surface treatment] Trivalent white
[Screw ridge type] Metric coarse
[Tip shape] Cup point
[Additional shapes] Standard
[Sales unit] Box· Pack
[Usage] Standard
[Thread type] Full-thread screw
[Nominal designation (M)] 5 6 8
[Length L (mm)] 10 12 14 16 20 25 30 35
[Pitch (mm)] 0.8 1 1.25

Standard Price:	SGD 131.86-
Days to Ship:	4 Day(s) or more

Weld Bolt Fine Thread

Weld Bolt Fine Thread【130-200 Pieces Per Package】

SUNCO

Featuring a seating with protruding section for welding on rear side of head.

Standard Price:	SGD 76.02-
Days to Ship:	4 Day(s) or more

TRX Tamper-proof Bind Machine Screw

TRX Tamper-proof Bind Machine Screw【700-2,500 Pieces Per Package】

SUNCO

[Detailed shape] Bind
[Mount hole shape] Hexalobuler hole
[Basic shape] Standard (round)
[Material] Steel
[Thread ridge type] Metric coarse
[Tip shape] Flat tip
[Additional shapes] Standard
[Sales unit] box / pack
[Usage] Standard
[Thread type] Full-thread screw
[Nominal designation (M)] 3 4 5
[Length (mm)] 5 6 8 10 12
[Pitch (mm)] 0.5 0.7 0.8
[Surface treatment] None, non-chrome black
trivalent chromate non-chrome plating white, trivalent black, trivalent white, bright chromate plating, chromate plating, bright chromate, nickel plating, chrome plating, trivalent stainless coating

Standard Price:	SGD 54.85-
Days to Ship:	4 Day(s) or more

Truss Head LR Machine Screw

Truss Head LR Machine Screw【1,000-2,000 Pieces Per Package】

OSP

[Detailed shape] Truss
[Mount hole shape] LR (slot recess)
[Basic shape] Standard (round)
[Material] Steel
[Thread ridge type] Metric coarse
[Tip shape] Flat tip
[Additional shapes] Standard
[Sales unit] box / pack
[Thread type] Full-thread screw
[Nominal designation (M)] 3 4 5
[Length (mm)] 6 8 10 12 15 16
[Pitch (mm)] 0.5 0.7 0.8
[Surface treatment] Trivalent chromate, trivalent black, trivalent white, bright chromate plating, chromate plating, black chromate, nickel plating, chrome plating
[Usage] Standard tamper prevention.

Standard Price:	SGD 38.91-
Days to Ship:	4 Day(s) or more

Tamper-proof Truss Head LR Machine Screw

Tamper-proof Truss Head LR Machine Screw【1,000 Pieces Per Package】

OSP

Basic Information
[Nominal designation (M)] 4
[Pitch (mm)] 0.7
[Detailed shape] Truss
[Mount hole shape] LR (slot recess)
[Basic shape] Standard (round)
[Material] Steel
[Thread type] Metric coarse
[Tip shape] Flat tip
[Additional shapes] Standard
[Sales unit] box / pack
[Thread type] Full-thread screw

Standard Price:	SGD 115.45
Days to Ship:	4 Day(s) or more

TRF/Tamper-Proof Screw, Iron Pin, Pot TRX I=3(SW+ISO W incorporated)

TRF/Tamper-Proof Screw, Iron Pin, Pot TRX I=3(SW+ISO W incorporated)【100 Pieces Per Package】

SUNCO

[Nominal] 2 2.6 3 4
[Material] Steel
[Surface Processing] Trivalent White

Standard Price:	SGD 31.46-
Days to Ship:	7 Day(s) or more


Brand
Product Series
CAD
Days to Ship
Mounting Hole Shape
Detailed Shape
Nominal of Thread (M)
Length L(mm)
Basic Shape
Pitch(mm)
Material
Surface Treatment
Thread Type
Tip Shape
Additional Shape
Sales Unit
Nominal of Thread (inch)
Length L (inch)
Application
Plastic Material
Screw Type

					On Sale Till 31/03/2025		On Sale Till 31/03/2025						On Sale Till 31/03/2025
Brand	SUNCO	SUNCO	OSP	SUNCO	SUNCO	SUNCO	SUNCO	OSP	SUNCO	SUNCO	SUNCO	SUNCO	SUNCO	TRUSCO NAKAYAMA	SUNCO	KYUHI SEIRA	SUNCO	SUNCO	OSP	OSP	SUNCO
Product Series	TRX Flat Head Machine Screw【300-3,000 Pieces Per Package】	TRX Pan Head Machine Screw【400-5,000 Pieces Per Package】	Countersunk Head LR Machine Screw【500-2,000 Pieces Per Package】	TORX Bored Plate Bolt (TORX plate cap) (new JIS) Nissan-Made Screw	TRX Tamper-proof Pan Head Machine Screw【300-5,000 Pieces Per Package】	TORX Bored Button Bolt (TORX button cap) Nissan-Made Screw	TRX Tamper-proof Truss Machine Screw【300-4,000 Pieces Per Package】	Pan Head LR Machine Screw【500-5,000 Pieces Per Package】	Slotted Flat Small Screws【120-7,000 Pieces Per Package】	Weld Bolt【50-2,500 Pieces Per Package】	TRX Small Truss Screw【150-2,000 Pieces Per Package】	TRX Tamper-proof Flat Head Machine Screw【400-6,000 Pieces Per Package】	Low Head Screw with TORX Hole【100 Pieces Per Package】	Cross-pin pan-head screw small (trivalent chromate)【27-65 Pieces Per Package】	TRF/Tamper-Proof Screw, Iron Cross Pin, Small Pot Screw【100 Pieces Per Package】	Clamping Bolt Checkle【300-2,000 Pieces Per Package】	Weld Bolt Fine Thread【130-200 Pieces Per Package】	TRX Tamper-proof Bind Machine Screw【700-2,500 Pieces Per Package】	Truss Head LR Machine Screw【1,000-2,000 Pieces Per Package】	Tamper-proof Truss Head LR Machine Screw【1,000 Pieces Per Package】	TRF/Tamper-Proof Screw, Iron Pin, Pot TRX I=3(SW+ISO W incorporated)【100 Pieces Per Package】
CAD									2D / 3D
Days to Ship	4 Day(s) or more	4 Day(s) or more	4 Day(s) or more	7 Day(s) or more	4 Day(s) or more	7 Day(s) or more	4 Day(s) or more	4 Day(s) or more	4 Day(s) or more	4 Day(s) or more	4 Day(s) or more	4 Day(s) or more	11 Day(s) or more	4 Day(s) or more	7 Day(s) or more	4 Day(s) or more	4 Day(s) or more	4 Day(s) or more	4 Day(s) or more	4 Day(s) or more	7 Day(s) or more
Mounting Hole Shape	Hexalobular Socket	Hexalobular Socket	Hexalobular Socket	Hexalobular Socket	Hexalobular Socket	Hexalobular Socket	Hexalobular Socket	Hexalobular Socket	Straight Slot Groove	-	Hexalobular Socket	Hexalobular Socket	Hexalobular Socket	Phillips	Phillips	Not Provided	-	-	Hexalobular Socket	Hexalobular Socket	Hexalobular Socket
Detailed Shape	Flat Head	Pan Head	Flat Head	Flat Head	Pan Head	Button Head Cap	Truss	Pan Head	Flat	Flat	Truss	Flat Head	Low Head	Pan Head	Pan Head	Standard	Flat	Binding Head	Truss	Truss	Pan Head
Nominal of Thread (M)	3 ～ 6	2.6 ～ 6	3 ～ 5	5 ～ 6	2 ～ 6	5 ～ 8	2.6 ～ 6	2 ～ 5	2 ～ 8	4 ～ 12	3 ～ 8	2.6 ～ 6	6	3 ～ 5	3 ～ 4	5 ～ 8	10	3 ～ 5	3 ～ 4	4	2.6 ～ 4
Length L(mm)	5 ～ 35	6 ～ 30	6 ～ 16	15 ～ 20	5 ～ 35	15 ～ 30	3 ～ 40	4 ～ 25	5 ～ 50	8 ～ 60	6 ～ 30	4 ～ 30	16	6 ～ 20	10	10 ～ 30	20 ～ 30	5 ～ 12	6 ～ 12	8	5 ～ 12
Basic Shape	Standard (Round)	Standard (Round)	Standard (Round)	Standard (Round)	Standard (Round)	Standard (Round)	Standard (Round)	Standard (Round)	Standard (Round)	Other Screws	Standard (Round)	Standard (Round)	Standard (Round)	Standard (Round)	Standard (Round)	Standard (Round)	Other Screws	Standard (Round)	Standard (Round)	Standard (Round)	Standard (Round)
Pitch(mm)	0.5 ～ 1	0.45 ～ 1	0.5 ～ 0.8	0.8 ～ 1	0.4 ～ 1	0.8 ～ 1.25	0.45 ～ 1	0.4 ～ 0.8	0.4 ～ 1.25	0.7 ～ 1.75	0.5 ～ 1.25	0.45 ～ 1	1	0.5 ～ 0.8	0.5 ～ 0.7	0.8 ～ 1.25	1.25	0.5 ～ 0.8	0.5 ～ 0.7	0.7	0.45 ～ 0.7
Material	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel
Surface Treatment	Trivalent Chromate	Trivalent Chromate	Trivalent Chromate	Trivalent Chromate	Trivalent Chromate	Trivalent Chromate	Trivalent Chromate	Trivalent Chromate	Trivalent Chromate	Trivalent Chromate	Trivalent Chromate	Trivalent Chromate	Trivalent Chromate	Trivalent Chromate	Trivalent Chromate	Trivalent Chromate	Trivalent Chromate	Trivalent Chromate	Trivalent Chromate	Trivalent Chromate	Trivalent Chromate
Thread Type	Metric, Coarse	Metric, Coarse	Metric, Coarse	Metric, Coarse	Metric, Coarse	Metric, Coarse	Metric, Coarse	Metric, Coarse	Metric, Coarse	Metric, Coarse	Metric, Coarse	Metric, Coarse	Metric, Coarse	Metric, Coarse	Metric, Coarse	Metric, Coarse	Metric, Fine	Metric, Coarse	Metric, Coarse	Metric, Coarse	Metric, Coarse
Tip Shape	Flat End	Flat End	Flat End	Flat End	Flat End	Flat End	Flat End	Flat End	Flat End	Flat End	Flat End	Flat End	Flat End	Flat End	Flat End	Cup Point	Flat End	Flat End	Flat End	Flat End	Flat End
Additional Shape	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	Standard	-	Standard	Standard	Standard	Standard
Sales Unit	Box, Pkg.	Box, Pkg.	Box, Pkg.	Low Quantity (Available beginning with 1 pc.)	Box, Pkg.	Low Quantity (Available beginning with 1 pc.)	Box, Pkg.	Box, Pkg.	Box, Pkg.	Box, Pkg.	Box, Pkg.	Box, Pkg.	Box, Pkg.	Box, Pkg.	Box, Pkg.	Box, Pkg.	Box, Pkg.	Box, Pkg.	Box, Pkg.	Box, Pkg.	Box, Pkg.
Nominal of Thread (inch)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Length L (inch)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Application	-	-	Standard / Tamper Proof	-	-	-	-	Standard / Tamper Proof	-	-	-	-	-	Standard / Tamper Proof	-	Standard	-	-	Standard / Tamper Proof	Standard / Tamper Proof	-
Plastic Material	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Screw Type	Fully Threaded	Fully Threaded	Fully Threaded	Fully Threaded	Fully Threaded	Fully Threaded	Fully Threaded	Fully Threaded	Fully Threaded	Fully Threaded	Fully Threaded	Fully Threaded	Fully Threaded	Fully Threaded	Fully Threaded	Fully Threaded	Fully Threaded	Fully Threaded	Fully Threaded	Fully Threaded	Fully Threaded

Configure

Specification/Dimensions

Mounting Hole Shape
- Hex Socket
- Phillips
- Straight Slot Groove
- Not Provided
- Hexalobular Socket
- Two Holes
- Tri-Wing
- One Side
- Triangular Hole
- 5 Rob
Larger Image

Clear

Detailed Shape
- Standard
- Low Head
- Extra Low Head
- Ultra Low Head
- Pan Head
- Flat Head
- Truss
- Round Flat Head
- Binding Head
- Button Head Cap
- Flat
Larger Image

Clear

Nominal of Thread (M)
1

1.2

1.4

1.6

2

2.3

2.5

2.6

3

4

5

6

8

10

12
Drawing

Clear

Length L(mm)
2

2.5

3

4

5

6

7

8

9

10

12

13

14

15

16

18

19

20

21

22

25

30

35

40

45

50

55

60

70

80

90

100
Drawing

Clear

Basic Shape
- Standard (Round)
- Set Screw
- Other Screws
- Related Components
- Dedicated Handwheel
Larger Image

Clear

Pitch(mm)
0.25

0.3

0.35

0.4

0.45

0.5

0.7

0.8

1

1.25

1.5

1.75
Clear

Material
Brass

Plastic

Special Material

Stainless Steel

Stainless Steel Plate

Steel
Clear

Surface Treatment
Black Oxide

Black Oxide Film

Black Paint

Bright Chrome Plating

Chromate Plating

Chrome Plating

Chromium free

Copper Plating

Hot Zinc Plating

Locking Agent Coating

Nickel Plating

Not Provided

Parkerizing

Stainless Steel Coating

Temper Color

Trivalent Chromate

Tumble Polish
Clear

Thread Type
- Metric, Coarse
- Metric, Fine
- Unified, Coarse (UNC)
- Unified, Fine (UNF)
Clear

Tip Shape
- Flat End
- Cup Point
- Other Special Shapes
Larger Image

Clear

Additional Shape
- Standard
- Flanged
- With Stopper Hole
Larger Image

Clear

Sales Unit
Low Quantity (Available beginning with 1 pc.)

Box, Pkg.
Clear

Nominal of Thread (inch)
1/4

5/16

No. 6

No. 8

No. 10
Clear

Length L (inch)
1

1 1/2

1 1/4

1/2

1/4

2

3/4

3/8
Clear

Application
- Standard
- For Vacuum Equipment
- Tamper Proof
Clear

Plastic Material
PC

PEEK

PPS
Details

Clear

Screw Type
- Fully Threaded
- Semi-Threaded
Clear

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Tamper Proof Button Head Cap Screws（Surface Treatment：Trivalent Chromate）

Configure

Specification/Dimensions

Mounting Hole Shape

Detailed Shape

Nominal of Thread (M)

Length L(mm)

Basic Shape

Pitch(mm)

Material

Surface Treatment

Thread Type

Tip Shape

Additional Shape

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Nominal of Thread (inch)

Length L (inch)

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