DIN 7983 F - Countersunk (Flat) Head Tapping Screws with Cross Recess, Form F

Current norm: DIN ISO 7051
Equivalent norms: ISO 7051; CSN 021239; UNI 6956;

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TOP LUSAVOUGA - Hardware and Tools	Cacia	Portugal	See Detail
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TOP Jiaxing Haina Fastener Co.,Limited	JIAXING	China	See Detail
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TOP Hanshin Neji Co.,Ltd.	Osaka	Japan	See Detail
TOP Maruti Metal Industries	Jamnagar	India	See Detail
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KPO Schrauben und Normteile GmbH	Iserlohn	Germany
Retolaza, S.L.	Elgoibar	Spain
EU 秘密研究所 Portal, s.r.o.	Brno	Czech Republic

Legend:

d - the nominal diameter of the thread
k - head height
dk - head diameter
f - height of the lens
m - groove width
y - length of the point

Makings:

Steel: steel - ISO 2702
Stainless: A2
Plastic: -
Non Ferrous: -
Thread: thread ISO 1478

Notes:
-

Table according to ISO 7051:

dimensions in mm

Thread size			ST2,2	ST2,9	ST3,5	(ST3,9)	ST4,2	ST4,8	ST5,5	ST6,3
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
dk		nominal=max.	4,3	5,5	6,8	7,5	8,1	9,5	10,8	12,4
dk		min.	4	5,2	6,44	7,14	7,74	9,14	10,37	11,97
f		approx.	0,7	0,9	1,2	1,3	1,4	1,5	1,7	2
k		approx.	1,3	1,7	2,1	2,3	2,5	3	3,4	3,8
r		max.	0,8	1,1	1,4	1,5	1,6	1,9	2,1	2,4
rf		approx.	3,8	4,6	5,4	6	6,6	8,2	9,4	11,1
Cross recess		No.	1	1	2	2	2	2	3	3
Type H	m	approx.	2,8	3,4	4,6	4,7	4,9	5,4	7	7,4
	Penetration deptd	min.	1,17	1,81	1,89	2,04	2,24	2,7	3,02	3,46
	Penetration deptd	max.	1,57	2,21	2,39	2,54	2,74	3,2	3,53	3,96
Type Z	m	approx.	2,4	3,1	4,3	4,4	4,6	5,1	6,6	7,1
	Penetration deptd	min.	1,1	1,83	1,88	2	2,26	2,69	2,92	3,4
	Penetration deptd	max.	1,35	2,08	2,34	2,46	2,72	3,15	3,38	3,86
y	max.	Type C	2	2,6	3,2	3,5	3,7	4,3	5	6
y	max.	Type F	1,6	2,1	2,5	2,7	2,8	3,2	3,6	3,6

l	Type C		Type F		Approximate mass (7,85 kg/dm3), per 1000 units in kg
nominal	min.	max.	min.	max.	Approximate mass (7,85 kg/dm3), per 1000 units in kg
6,5	5,7	7,3	5,7	6,5	0,18	0,332
9,5	8,7	10,3	8,7	9,5	0,24	0,44	0,721	0,888	1,07	1,53
13	12,2	13,8	12,2	13	0,31	0,566	0,898	1,11	1,32	1,88	2,74	3,46
16	15,2	16,8	15,2	16	0,37	0,674	1,05	1,3	1,53	2,18	3,12	4
19	18,2	19,8	18,2	19		0,782	1,2	1,49	1,74	2,48	3,51	4,54
22	21,2	22,8	20,7	22			1,35	1,68	1,95	2,78	3,89	5,08
25	24,2	25,8	23,7	25			1,51	1,87	2,16	3,08	4,28	5,62
32	30,7	33,3	30,7	32					2,65	3,78	5,19	6,88
38	36,7	39,3	36,7	38							5,97	7,96
38	36,7	39,3	36,7	38						4,52	6,45	8,82

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Product	Date	Country	Detail
DIN 7983-A2-BL 2,2 mm x 9,5	2024-05-18 08:43:20	Germany	See Detail
DIN 7983 C screws - stainless steel - for Bulgaria	2021-06-15 13:04:10	Bulgaria	See Detail
DIN 7983 TX A2 4,2x45 200 000pcs	2021-05-04 08:59:26	Sweden	See Detail
DIN 7983 Form H type F Stainless steel	2020-01-16 16:17:17	Canada	See Detail

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