Westfield Fasteners Assortment

A2 Pozi Pan Head Self Tapping Screw

Product Description

A mixed box containing DIN 7981 pozi pan head tapping screws with cone point, in corrosion resistant stainless steel. See figure 1 and table 1 below for dimensions and tolerances according to the DIN standard.

Figure 1: Pozi Pan Tapping Screw in A2 Stainless

Assortment Content

Screw Type - Pozi Pan Tapping Screw, Type AB

Material - A2 Stainless Steel

Sizes - No.4 x 1/2" to No,10 x 1"

Average Contents - 400 pcs

Specification - DIN 7981

Table 1: Dimensions & Tolerances according to DIN 7981 (mm)

Thread Size	2.2 (no.2)	2.9 (no.4)	3.5 (no.6)	3.9 (no.7)	4.2 (no.8)	4.8 (no.10)	5.5 (no.12)	6.3 (no.14)
Pitch, p	0.8	1.1	1.3	1.3	1.4	1.6	1.8	1.8
a	max	0.8	1.1	1.3	1.3	1.4	1.6	1.8	1.8
d_k	max=nom	4.2	5.6	6.9	7.5	8.2	9.5	10.8	12.5
min	3.9	5.3	6.54	7.14	7.84	9.14	10.37	12.07
k	max=nom	1.8	2.2	2.6	2.8	3.05	3.55	3.95	4.55
min	1.55	1.95	2.35	2.55	2.75	3.25	3.65	4.25
r	max	0.3	0.4	0.5	0.5	0.6	0.7	0.8	0.9
r_f	=	3.4	4.4	5.4	5.8	6.2	7.2	8.2	9.5
Cross Recess	Cross Recess No.	1	2	3
Type Z	m =	2.4	2.9	3.9	4.1	4.3	4.7	6.2	6.7
Penetration Depth min	1.1	1.58	1.47	1.7	1.88	2.28	2.51	3.02
Penetration Depth max	1.35	1.83	1.93	2.16	2.34	2.74	2.97	3.48

Thread Size

2.2 (no.2)

2.9 (no.4)

3.5 (no.6)

3.9 (no.7)

4.2 (no.8)

4.8 (no.10)

5.5 (no.12)

6.3 (no.14)

Pitch, p

0.8

1.1

1.3

1.4

1.6

1.8

max

0.8

1.1

1.3

1.4

1.6

1.8

d_k

max=nom

4.2

5.6

6.9

7.5

8.2

9.5

10.8

12.5

min

3.9

5.3

6.54

7.14

7.84

9.14

10.37

12.07

max=nom

1.8

2.2

2.6

2.8

3.05

3.55

3.95

4.55

min

1.55

1.95

2.35

2.55

2.75

3.25

3.65

4.25

max

0.3

0.4

0.5

0.6

0.7

0.8

0.9

r_f

3.4

4.4

5.4

5.8

6.2

7.2

8.2

9.5

Cross Recess

Cross Recess No.

Type Z

m =

2.4

2.9

3.9

4.1

4.3

4.7

6.2

6.7

Penetration Depth min

1.1

1.58

1.47

1.7

1.88

2.28

2.51

3.02

Penetration Depth max

1.35

1.83

1.93

2.16

2.34

2.74

2.97

3.48