Product name :307 carbon steel self-tapping screw sleeve

Specification: M2-M30

Material:carbon steel rotation: tooth

packing: PE bag

delivery: have stock

standard: GB24425.1

Carbon steel tapping threaded inserts model 307/308

Self tapping threaded inserts is strictly in accordance with ISO/TS16949 quality system to produce and test products, self tapping threaded inserts application almost throughout the metal and plastic processing industry, products have been long-term application in the automotive industry, civil and commercial vehicle engines, transmission, aviation industry, rail car industry, its quality has never been questioned.

307 type three hole

Internal thread

Length（mm）

External thread

Refer Hole Diameter (mm)

Minimum Hole Depth

aluminium alloy

Cast Iron

M3*0.5

4

M5*0.6

4.6-4.7

4.7-4.8

6

M4*0.7

6

M6.5*0.8

6.0-6.1

6.1-6.2

8

M5*0.8

7

M8*1.0

7.4-7.5

7.6-7.7

9

M6*1.0

8

M10*1.25

9.3-9.4

9.5-9.6

10

M8*1.25

9

M12*1.5

11.1-11.3

11.3-11.5

11

M10*1.5

10

M14*1.5

13.1-13.3

13.3-13.5

13

M12*1.75

12

M16*1.75

15.0-15.5

15.3-15.5

15

M14*2.0

14

M18*2.0

17.0-17.2

17.3-17.5

17

14

M20*2.0

19.0-19.2

19.3-19.5

17