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Tamper Proof Button Head Cap Screws（Mounting Hole Shape：Hex Socket）

Tamper-proof screws
Screws that cannot be easily removed unless a special tool is used. They are effective in preventing theft, disassembly, mischief, information le ...Readmore

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. ▲ Close

19 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

On Sale Till 31/03/2025

Button Head Cap Screws/Tamper Proof

MISUMI

Protruding pin in the socket is 0-0.5mm below the top of screw head.[Materials] SUS304 Equivalent.[Nominal of Thread (M)] 3, 4, 5, 6, 8.

Volume Discount

CAD ：: 2D / 3D

Standard Price:	SGD 0.72-
	Special Price
Days to Ship:	Same day or more

Pin Hex Socket / Countersunk Screw

Pin Hex Socket / Countersunk Screw【1-3,000 Pieces Per Package】

SUNCO

[Material] Stainless Steel[Nominal of Thread] 3 4 5 6 8

Standard Price:	SGD 0.37-
Days to Ship:	4 Day(s) or more

Hex Socket Button Head Cap Screw (With Pin) SRHS

Hex Socket Button Head Cap Screw (With Pin) SRHS【1-20 Pieces Per Package】

NABEYA BI-TECH

Button bolt with pin at center of hex hole. Cannot be fitted or removed with ordinary tools. For use tamper-proofing devices and equipment from dismantling or theft.

CAD ：: 2D / 3D

Standard Price:	SGD 1.24-
Days to Ship:	4 Day(s) or more

Hexagonal hole countersunk head bolt with pin (stainless steel)

Hexagonal hole countersunk head bolt with pin (stainless steel)【8-13 Pieces Per Package】

TRUSCO NAKAYAMA

[Features]· Cannot be removed using normal tools due to pin at center of hex hole.

Standard Price:	SGD 14.32-
Days to Ship:	Same day or more

Tamper-Proof Screw, Pin / Hex Socket Button Bolt

SAIMA CORPORATION

Excellent torque transmission during tightening.[Features]· Due to pin at center of the hex hole, normal hex wrenches are blocked.

Standard Price:	SGD 1.30-
Days to Ship:	Same day or more

On Sale Till 31/03/2025

Small Button Screws with Pins and Hexagonal Holes

Small Button Screws with Pins and Hexagonal Holes【1-2,000 Pieces Per Package】

SUNCO

Due to pin at center of hex hole, a normal wrench is blocked. Ideal for dangerous locations, security sections, and protection of high-value equipment.

Standard Price:	SGD 0.32-
	Special Price
Days to Ship:	Same day or more

Tamper-proof screw, dedicated tool, screwdriver with magnet

SAIMA CORPORATION

Dropping down or loss is prevented due to magnet.[Features]· Driver with changeable bit.· Fixes bit with tip magnet.

Standard Price:	SGD 68.69-
Days to Ship:	4 Day(s) or more

Hexagonal hole button bolt with pin (stainless steel)

Hexagonal hole button bolt with pin (stainless steel)【9-15 Pieces Per Package】

TRUSCO NAKAYAMA

[Features]· Cannot be removed using normal tools due to pin at center of hex hole.

Standard Price:	SGD 14.33-
Days to Ship:	4 Day(s) or more

TRF/Tamper-Proof Screw, Stainless Steel Pin, Small Button Hexagonal Hole Screw

TRF/Tamper-Proof Screw, Stainless Steel Pin, Small Button Hexagonal Hole Screw【1-100 Pieces Per Package】

SUNCO

[Nominal] 3 4 5 6 8 10 12[Material] Stainless Steel[Surface Processing] None / Loosening Prevention Coating / Black Coating

Standard Price:	SGD 2.01-
Days to Ship:	4 Day(s) or more

Tamperproof Screw, No Recess TRF

SAIMA CORPORATION

When tightening, the hex head part is designed to break. After breaking, as the screw has no recess, it is difficult to remove with normal tools.

Standard Price:	SGD 3.28-
Days to Ship:	6 Day(s) or more

Hexagonal hole screws with pin (dyed black)

Hexagonal hole screws with pin (dyed black)【9-15 Pieces Per Package】

TRUSCO NAKAYAMA

[Features]· Cannot be removed using normal tools due to pin at center of hex hole.

Standard Price:	SGD 14.35-
Days to Ship:	4 Day(s) or more

Tamper-proof Set Screw with Flat Hex Hole

SAIMA CORPORATION

Excellent torque transmission during tightening.[Features]· Due to pin at center of the hex hole, normal hex wrenches are blocked.

Standard Price:	SGD 1.45-
Days to Ship:	4 Day(s) or more

Mischief prevention screw　Set screw dent part with pin hexagonal hole

SAIMA CORPORATION

Due to pin at center of the hex hole, normal hex wrenches cannot be inserted. Excellent torque transmission during tightening.

Standard Price:	SGD 2.02-
Days to Ship:	4 Day(s) or more

Tamperproof Screw, Dedicated Tool, Hex Hole Bit

SAIMA CORPORATION

[Features]L-shaped wrench for TRF hex socket. [Unit of Purchase]Sold separately (can be purchased individually)

Standard Price:	SGD 8.79-
Days to Ship:	4 Day(s) or more

Tamperproof Screw, Dedicated Tool, Hex Hole Long Bit

SAIMA CORPORATION

Can be used for longer reach than previously available hex hole use bits.

Standard Price:	SGD 24.42
Days to Ship:	4 Day(s) or more

Dedicated Tool for Tamper-Proof Screws, L-Shaped Wrench for Hex Socket

SAIMA CORPORATION

[Features]L-shaped wrench for TRF hex socket. [Unit of Purchase]Sold separately (can be purchased individually)

Standard Price:	SGD 19.33-
Days to Ship:	Same day or more

TRF/Tamper-Proof Screw, Stainless Steel Pin, Small Plate Hexagonal Hole Screw

TRF/Tamper-Proof Screw, Stainless Steel Pin, Small Plate Hexagonal Hole Screw【1-100 Pieces Per Package】

SUNCO

[Nominal] 3 4 5 6 8[Material] Stainless Steel[Surface Processing] None / Loosening Prevention Coating / Black Coating

Standard Price:	SGD 1.23-
Days to Ship:	4 Day(s) or more

TRF/Tamper-Proof Screw, Stainless Steel Pin, Small Plate Hexagonal Hole Screw (UNC)

TRF/Tamper-Proof Screw, Stainless Steel Pin, Small Plate Hexagonal Hole Screw (UNC)【100 Pieces Per Package】

SUNCO

[Material] Stainless Steel[Nominal] NO.6 NO.8 NO.10 1/4 5/16[Surface Processing] None

Standard Price:	SGD 214.08-
Days to Ship:	16 Day(s) or more

TRF/Tamper-Proof Screw, Stainless Steel Pin, Small Button Hexagonal Hole Screw (UNC)

TRF/Tamper-Proof Screw, Stainless Steel Pin, Small Button Hexagonal Hole Screw (UNC)【100 Pieces Per Package】

SUNCO

[Material] Stainless Steel[Nominal] NO.6 NO.8 NO.10 1/47 5/16[Surface Processing] None

Standard Price:	SGD 208.11-
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
Brand	MISUMI	SUNCO	NABEYA BI-TECH	TRUSCO NAKAYAMA	SAIMA CORPORATION	SUNCO	SAIMA CORPORATION	TRUSCO NAKAYAMA	SUNCO	SAIMA CORPORATION	TRUSCO NAKAYAMA	SAIMA CORPORATION	SAIMA CORPORATION	SAIMA CORPORATION	SAIMA CORPORATION	SAIMA CORPORATION	SUNCO	SUNCO	SUNCO
Product Series	Button Head Cap Screws/Tamper Proof	Pin Hex Socket / Countersunk Screw【1-3,000 Pieces Per Package】	Hex Socket Button Head Cap Screw (With Pin) SRHS【1-20 Pieces Per Package】	Hexagonal hole countersunk head bolt with pin (stainless steel)【8-13 Pieces Per Package】	Tamper-Proof Screw, Pin / Hex Socket Button Bolt	Small Button Screws with Pins and Hexagonal Holes【1-2,000 Pieces Per Package】	Tamper-proof screw, dedicated tool, screwdriver with magnet	Hexagonal hole button bolt with pin (stainless steel)【9-15 Pieces Per Package】	TRF/Tamper-Proof Screw, Stainless Steel Pin, Small Button Hexagonal Hole Screw【1-100 Pieces Per Package】	Tamperproof Screw, No Recess TRF	Hexagonal hole screws with pin (dyed black)【9-15 Pieces Per Package】	Tamper-proof Set Screw with Flat Hex Hole	Mischief prevention screw　Set screw dent part with pin hexagonal hole	Tamperproof Screw, Dedicated Tool, Hex Hole Bit	Tamperproof Screw, Dedicated Tool, Hex Hole Long Bit	Dedicated Tool for Tamper-Proof Screws, L-Shaped Wrench for Hex Socket	TRF/Tamper-Proof Screw, Stainless Steel Pin, Small Plate Hexagonal Hole Screw【1-100 Pieces Per Package】	TRF/Tamper-Proof Screw, Stainless Steel Pin, Small Plate Hexagonal Hole Screw (UNC)【100 Pieces Per Package】	TRF/Tamper-Proof Screw, Stainless Steel Pin, Small Button Hexagonal Hole Screw (UNC)【100 Pieces Per Package】
CAD	2D / 3D		2D / 3D
Days to Ship	Same day or more	4 Day(s) or more	4 Day(s) or more	Same day or more	Same day or more	Same day or more	4 Day(s) or more	4 Day(s) or more	4 Day(s) or more	6 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	Same day or more	4 Day(s) or more	16 Day(s) or more	7 Day(s) or more
Mounting Hole Shape	Hex Socket	Hex Socket	Hex Socket	Hex Socket	Hex Socket	Hex Socket	Hex Socket	Hex Socket	Hex Socket	Hex Socket	Hex Socket	Hex Socket	Hex Socket	Hex Socket	Hex Socket	Hex Socket	Hex Socket	Hex Socket	Hex Socket
Detailed Shape	Button Head Cap	Flat Head	Button Head Cap	Flat Head	Button Head Cap	Button Head Cap	-	Button Head Cap	Button Head Cap	Pan Head	-	Flat Head	-	-	-	-	Flat Head	Flat Head	Button Head Cap
Nominal of Thread (M)	3 ～ 8	3 ～ 8	3 ～ 6	3 ～ 5	3 ～ 12	3 ～ 8	-	3 ～ 5	3 ～ 12	3 ～ 6	5 ～ 8	3 ～ 8	5 ～ 8	-	-	-	3 ～ 8	-	-
Length L(mm)	6 ～ 50	6 ～ 50	6 ～ 25	6 ～ 20	6 ～ 100	6 ～ 70	-	6 ～ 20	2 ～ 60	6 ～ 25	8 ～ 16	6 ～ 60	8 ～ 16	-	-	-	6 ～ 50	-	-
Basic Shape	Other Screws	Standard (Round)	Standard (Round)	Standard (Round)	Standard (Round)	Standard (Round)	Related Components	Standard (Round)	Standard (Round)	Standard (Round)	Set Screw	Standard (Round)	Set Screw	Related Components	Related Components	Related Components	Standard (Round)	Standard (Round)	Standard (Round)
Pitch(mm)	0.5 ～ 1.25	-	0.5 ～ 1	0.5 ～ 0.8	0.5 ～ 1.75	0.5 ～ 1.25	-	0.5 ～ 0.8	0.5 ～ 1.75	0.5 ～ 1	0.8 ～ 1.25	0.5 ～ 1.25	0.8 ～ 1.25	-	-	-	0.5 ～ 1.25	-	-
Material	Stainless Steel	Stainless Steel	Stainless Steel	Stainless Steel	Stainless Steel	Stainless Steel	-	Stainless Steel	Stainless Steel	Stainless Steel	Steel	Stainless Steel	Special Material	-	-	-	Stainless Steel	Stainless Steel	Stainless Steel
Surface Treatment	Not Provided	Black Paint / Not Provided	Not Provided	Not Provided	-	Copper Plating / Black Paint / Not Provided	-	Not Provided	Black Paint / Not Provided	-	Black Oxide	-	-	-	-	-	Locking Agent Coating / Black Paint / Not Provided	Not Provided	Not Provided
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	Unified, Coarse (UNC)	Unified, Coarse (UNC)
Tip Shape	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
Sales Unit	Low Quantity (Available beginning with 1 pc.)	Low Quantity (Available beginning with 1 pc.) ～ Box, Pkg.	Low Quantity (Available beginning with 1 pc.) ～ Box, Pkg.	Box, Pkg.	Low Quantity (Available beginning with 1 pc.)	Low Quantity (Available beginning with 1 pc.) ～ Box, Pkg.	Low Quantity (Available beginning with 1 pc.)	Box, Pkg.	Low Quantity (Available beginning with 1 pc.) ～ Box, Pkg.	Low Quantity (Available beginning with 1 pc.)	Box, Pkg.	Low Quantity (Available beginning with 1 pc.)	Low Quantity (Available beginning with 1 pc.)	Low Quantity (Available beginning with 1 pc.)	Low Quantity (Available beginning with 1 pc.)	Low Quantity (Available beginning with 1 pc.)	Low Quantity (Available beginning with 1 pc.) ～ Box, Pkg.	Box, Pkg.	Box, Pkg.
Nominal of Thread (inch)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	1/4 ～ No. 10	1/4 ～ No. 10
Length L (inch)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	1 ～ 3/4	1 ～ 3/8
Application	Standard / For Vacuum Equipment	-	Standard / Tamper Proof	Standard / Tamper Proof	Tamper Proof	-	-	Standard / Tamper Proof	-	Tamper Proof	Standard / Tamper Proof	Tamper Proof	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	-	-


Brand
Product Series

	On Sale Till 31/03/2025					On Sale Till 31/03/2025
Brand	MISUMI	SUNCO	NABEYA BI-TECH	TRUSCO NAKAYAMA	SAIMA CORPORATION	SUNCO	SAIMA CORPORATION	TRUSCO NAKAYAMA	SUNCO	SAIMA CORPORATION	TRUSCO NAKAYAMA	SAIMA CORPORATION	SAIMA CORPORATION	SAIMA CORPORATION	SAIMA CORPORATION	SAIMA CORPORATION	SUNCO	SUNCO	SUNCO
Product Series	Button Head Cap Screws/Tamper Proof	Pin Hex Socket / Countersunk Screw【1-3,000 Pieces Per Package】	Hex Socket Button Head Cap Screw (With Pin) SRHS【1-20 Pieces Per Package】	Hexagonal hole countersunk head bolt with pin (stainless steel)【8-13 Pieces Per Package】	Tamper-Proof Screw, Pin / Hex Socket Button Bolt	Small Button Screws with Pins and Hexagonal Holes【1-2,000 Pieces Per Package】	Tamper-proof screw, dedicated tool, screwdriver with magnet	Hexagonal hole button bolt with pin (stainless steel)【9-15 Pieces Per Package】	TRF/Tamper-Proof Screw, Stainless Steel Pin, Small Button Hexagonal Hole Screw【1-100 Pieces Per Package】	Tamperproof Screw, No Recess TRF	Hexagonal hole screws with pin (dyed black)【9-15 Pieces Per Package】	Tamper-proof Set Screw with Flat Hex Hole	Mischief prevention screw　Set screw dent part with pin hexagonal hole	Tamperproof Screw, Dedicated Tool, Hex Hole Bit	Tamperproof Screw, Dedicated Tool, Hex Hole Long Bit	Dedicated Tool for Tamper-Proof Screws, L-Shaped Wrench for Hex Socket	TRF/Tamper-Proof Screw, Stainless Steel Pin, Small Plate Hexagonal Hole Screw【1-100 Pieces Per Package】	TRF/Tamper-Proof Screw, Stainless Steel Pin, Small Plate Hexagonal Hole Screw (UNC)【100 Pieces Per Package】	TRF/Tamper-Proof Screw, Stainless Steel Pin, Small Button Hexagonal Hole Screw (UNC)【100 Pieces Per Package】

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
- Not Provided
- Black Oxide Film
- Black Oxide
- Chromium free
- Trivalent Chromate
- Bright Chrome Plating
- Hot Zinc Plating
- Chromate Plating
- Nickel Plating
- Chrome Plating
- Parkerizing
- Stainless Steel Coating
- Copper Plating
- Locking Agent Coating
- Black Paint
- Temper Color
- Tumble Polish
Clear