SECURITY SYSTEM- E-SELF DRIVING NUT

E-self driving nut is one of Top Screw’s security sex bolts. It features round body with fangs on it to grip application tightly while screw in from the other side. The screw drive can be security drive to prevent anyone to unlock it. Fast, easy and labour saving. It can be installed with simple tool.

Material: Steel, Stainless Steel, Brass

Size & surface finished upon request

e-self-driving-nut-series

E SELF-DRIVING NUT-DIMENSIONS&SPECIFICATION

(MILLIMETERS)

THREAD

SIZE

P/N.

A

D

L

C

d

THREAD

DEPTH

NIN.

HOLE

SIZE

±0.25

±0.15

±0.3

±0.1

M5PH0.8

ESNM512

11

6.20

12

5

7.70

8

6.50

ESNM516

11

6.20

16

5

7.70

12

6.50

ESNM520

11

6.20

20

5

7.70

16

6.50

ESNM524

11

6.20

24

5

7.70

20

6.50

M6PH1.0

ESNM612

15

7.80

12

5

9.60

8

8.10

ESNM616

15

7.80

16

5

9.60

12

8.10

ESNM620

15

7.80

20

5

9.60

16

8.10

ESNM624

15

7.80

24

5

9.60

20

8.10

M8PH1.25

ESNM812

17

9.45

12

5

11.25

8

9.75

ESNM816

17

9.45

16

5

11.25

12

9.75

ESNM820

17

9.45

20

5

11.25

16

9.75

ESNM824

17

9.45

24

5

11.25

20

9.75

 

E SELF-DRIVING NUT-DIMENSIONS&SPECIFICATION

(INCH)

THREAD

SIZE

P/N.

A

D

L

C

d

THREAD

DEPTH

NIN.

HOLE

SIZE

±0.01

±0.006

±0.012

±0.003

10-24

ESNI512

0.433

0.244

0.500

0.197

0.303

0.34

0.255

ESNI516

0.433

0.244

0.625

0.197

0.303

0.47

0.255

ESNI520

0.433

0.244

0.750

0.197

0.303

0.59

0.255

ESNI524

0.433

0.244

1.000

0.197

0.303

0.84

0.255

1/4-20

ESNI612

0.65

0.308

0.500

0.197

0.378

0.34

0.311

ESNI616

0.65

0.308

0.625

0.197

0.378

0.47

0.311

ESNI620

0.65

0.308

0.750

0.197

0.378

0.59

0.311

ESNI624

0.65

0.308

1.000

0.197

0.378

0.84

0.311

5/16-18

ESNI812

0.687

0.375

0.500

0.197

0.445

0.34

0.378

ESNI816

0.687

0.375

0.625

0.197

0.445

0.47

0.378

ESNI820

0.687

0.375

0.750

0.197

0.445

0.59

0.378

ESNI824

0.687

0.375

1.000

0.197

0.445

0.84

0.378

 

e-self-driving-nut-1

TOP QUALITY INSTRUMENT INC.

MAIL:topqualityinstrument@gmail.com

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SECURITY SYSTEM-One Way Sex bolts

Easy to be installed with a standard screwdriver. One way drive type can be
driven in one direction only, the screwdriver will be cam out if used in
the opposite direction to remove the fastener. Recommended for permanent
installation only.

Material: Steel, Stainless Steel, Aluminum and Brass

Size & surface finished upon request.

FEMALE NUT

one-way-female-drawing

ONE WAY FEMALE NUT
(IN INCH)

A

±0.008

H

±0.011

D

±0.004

L

±0.01

G

±0.02

THREADED

0.4375

0.12

0.245

0.625

0.50

10-24

0.4375

0.12

0.245

0.500

0.37

10-24

MALE SCREW

one-way-male-drawing

ONE WAY- MALE SCREW
(IN INCH)

TYPE

A

±0.008

H

±0.01

D1

±0.004

L

±0.01

L1

±0.008

THREADED

B

0.437

0.12

0.25

0.500

0.13

10-24

B

0.437

0.12

0.25

0.750

0.27

10-24

B

0.437

0.12

0.25

0.937

0.27

10-24

A

0.437

0.12

0.25

1.060

0.27

10-24

A

0.437

0.12

0.25

1.190

0.27

10-24

A

0.437

0.12

0.25

1.310

0.27

10-24

TOP QUALITY INSTRUMENT INC.

MAIL:topqualityinstrument@gmail.com

SIX LOBE WITH PIN SEX BOLT

Torx Pin Sex bolts are also often called Tamper Proof Security Torx sex
bolts, Six-Lobe Pin sex bolts or Star pin drive.

It is high torque application. The special torn design is a key to prevent
stealing because it need to be installed with special pin-in driver and it
is difficult to be removed after installing.

It normally to be used in outdoor play facilities, fitness equipment or
public facilities.

Material: Steel/ Stainless Steel/ Aluminum/ Brass

Other material, size or surface finished are upon request.

Female Nut

six-lobe-female-drawing-tq

SIX LOBE-FEMALE NUT
(IN INCH)

A

±0.008

H

±0.011

D

±0.004

L

±0.01

G

±0.02

THREADED

0.425

0.125

0.245

0.500

0.377

10-24

0.425

0.125

0.245

0.625

0.500

10-24

Male Screw

six-lobe-male-drawing-tq

SIX LOBE-MALE SCREW
(IN INCH)

A

±0.008

H

±0.011

D1

±0.003

L

±0.01

L1

±0.008

THREADED

0.425

0.125

0.236

3/4

0.248

10-24

0.425

0.125

0.236

15/16

0.248

10-24

0.425

0.125

0.236

1-1/16

0.248

10-24

0.425

0.125

0.236

1-3/16

0.248

10-24

0.425

0.125

0.236

1-5/16

0.248

10-24

0.425

0.125

0.236

1-3/8

0.248

10-24