KNURLED THREAD INSERT ST SERIES 

KNURLED THREAD INSERT

Top Screw ST series Threaded insert is designed to be installed in the small space. The body length after riveting is shorter than any standard type of blind rivet nut. The head of insert can press tightly against surface of application.

ST series can be installed on application which the thickness is thicker than 0.03” (0.76mm) and the application can be most any type of material.

The material for ST series can be Steel and Stainless Steel.

Further information about recommended hole size, grip range and application thickness. Please refer below table.

 

Unified (inch) and meteric thread sizes

THREAD SIZE

PART NO.

HD

±0.005

L

±0.015

D

MAX

IL

MAX

LB

±0.015

ILB

MAX

IATD

MAX

HOLE

DEPTH MIN

UNC 4-40

CATI 440

.211

.370

.1875

.205

.660

.495

.395

.400

UNC 6-32

CATI 632

.240

.370

.2185

.205

.675

.505

.410

.400

UNC 8-32

CATI 832

.269

.370

.2495

.205

.675

.505

.410

.400

UNC 10-24

CATI 1024

.306

.370

.2805

.205

.685

.520

.385

.400

UNC 10-32

CATI 1032

.306

.370

.2805

.205

.685

.520

.385

.400

UNC 1/4-20

CATI 420

.400

.515

.3745

.275

1.005

.760

.615

.540

UNC 5/16-18

CATI 518

.528

.615

.4995

.325

1.065

.770

.630

.640

UNC 3/8-16

CATI 616

.588

.745

.5615

.390

1.450

1.095

.890

.770

UNC 1/2-13

CATI 1213

.800

.935

.7485

.485

NA

NA

NA

.960

THREAD SIZE

PART NO.

HD

±0.005

L

±0.015

D

MAX

IL

MAX

LB

±0.015

ILB

MAX

IATD

MAX

HOLE

DEPTH MIN

ISO M3x0,5

CATM 350

5,36

9,40

4,76

5,21

16,77

12,57

10,03

10,16

ISO M4x0,7

CATM 470

6,83

9,40

6,34

5,21

17,15

12,83

10,41

10,16

ISO M5x0,8

CATM 580

7,77

9,40

7,12

5,21

17,40

13,21

9,78

10,16

ISO M6x1,0

CATM 610

10,16

13,08

9,51

6,99

25,53

19,30

15,62

13,72

ISO M8x1,25

CATM 8125

13,41

15,62

12,69

8,26

27,05

19,56

16,00

16,26

ISO M10x1,5

CATM 1015

14,94

18,92

14,26

9,91

36,83

27,81

22,61

19,56

ISO M12x1,75

CATM 12175

20,32

23,75

19,01

12,32

NA

NA

NA

24,38

 

Hole size / meterial thickness chart

THREAD SIZE

.030-.090 MAT. THICKNESS

.091-.124 MAT. THICKNESS

.125-.186 MAT. THICKNESS

.187-OVER MAT. THICKNESS

DRILL SIZE

DECIMAL

DRILL SIZE

DECIMAL

DRILL SIZE

DECIMAL

DRILL SIZE

DECIMAL

UNC 4-40

3/16

.1875

#10

.1935

#10

.1935

#9

.1960

UNC 6-32

7/32

.2188

#2

.2210

#1

.2280

#1

.2280

UNC 8-32

1/4

.2500

"F"

.2570

17/64

.2656

17/64

.2656

UNC 10-24

9/32

.2812

"L"

.2900

"L"

.2900

19/64

.2969

UNC 10-32

9/32

.2812

"L"

.2900

"L"

.2900

19/64

.2969

UNC 1/4-20

0.375

.3750

0.375

.3750

"W"

.3860

25/64

.3906

UNC 5/16-18

0.5

.5000

0.5

.5000

33/64

.5156

33/64

.5156

UNC 3/8-16

0.5625

.5625

0.5625

.5625

37/64

.5781

37/64

.5781

UNC 1/2-13

0.75

.7500

0.765625

.7656

25/32

.7810

51/64

.7970

THREAD SIZE

.030-.090 MAT. THICKNESS

.091-.124 MAT. THICKNESS

.125-.186 MAT. THICKNESS

.187-OVER MAT. THICKNESS

DRILL SIZE

DECIMAL

DRILL SIZE

DECIMAL

DRILL SIZE

DECIMAL

DRILL SIZE

DECIMAL

ISO M3x0,5

4,75

.1875

4,90

.1935

4,90

.1935

4,97

.1960

ISO M4x0,7

6,35

.2500

6,52

.2570

6,74

.2656

6,74

.2656

ISO M5x0,8

7,14

.2812

7,36

.2900

7,36

.2900

7,54

.2969

ISO M6x1,0

9,52

.3750

9,52

.3750

9,80

.3860

9,92

.3906

ISO M8x1,25

12,70

.5000

12,70

.5000

13,09

.5156

13,09

.5156

ISO M10x1,5

14,28

.5625

14,28

.5625

14,68

.5781

14,68

.5781

ISO M12x1,75

19,05

.7500

19,44

.7656

19,83

.7810

20,24

.7970

 

ST series Threaded insert is commonly used in any industry including automobile industry.

 

TOP SCREW METAL CORP.

78, LANE 415, TAY HO RD., SEC.2, KU YI LI, CHANG HWA CITY, TAIWAN, R.O.C.

TEL+886-4-7237159   FAX+886-4-7246640

MAILrecept@topscrew.com.tw

 

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