DIN 7981 F - Pan head tapping screws with cross recess H and Z, Form F

Current norm: DIN ISO 7049
Equivalent norms: ISO 7049; CSN 021235; UNI 6954;

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Company	City	Country	Company profile
TOP LUSAVOUGA - Hardware and Tools	Cacia	Portugal	See Detail
TOP Lectoe Engineering 秘密研究所 Ltd	Wolverhampton	United Kingdom	See Detail
TOP Jiaxing Haina Fastener Co.,Limited	JIAXING	China	See Detail
TOP Shanghai Tengri Metal Products Co., Ltd	Shanghai	China	See Detail
TOP Hanshin Neji Co.,Ltd.	Osaka	Japan	See Detail
TOP Maruti Metal Industries	Jamnagar	India	See Detail
Shellbourne Manufacturing	Bolton	United Kingdom
Bultsvetsteknik i 尝颈苍办枚辫颈苍驳 AB	尝颈苍办枚辫颈苍驳	Sweden
allfa D眉bel GmbH	Gelsenkirchen	Germany
Bosch Centrum Agares Sp. j. Barbara i Jerzy Schmidt	骋诲补艅蝉办	Poland

Legend:

d1 - the nominal diameter of the thread
k - head height
d2 - head diameter
L - length of bolt
m - groove width

Makings:

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

Notes:
-

Table according to ISO 7049:

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.	4,2	5,6	6,9	7,5	8,2	9,5	10,8	12,5
dk		min.	3,9	5,3	6,54	7,14	7,84	9,14	10,37	12,07
k		nominal=max.	1,8	2,2	2,6	2,8	3,05	3,55	3,95	4,55
k		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
rf		approx.	3,4	4,4	5,4	5,8	6,2	7,2	8,2	9,5
Cross recess		No.	1	1	2	2	2	2	3	3
Type H	m	approx.	2,6	3	4,2	4,4	4,6	5	6,5	7,1
	Penetration deptd	min.	0,86	1,35	1,4	1,63	1,8	2,26	2,49	3
	Penetration deptd	max.	1,32	1,8	2,03	2,26	2,46	2,87	3,15	3,66
Type Z	m	approx.	2,4	2,9	3,9	4,1	4,3	4,7	6,2	6,7
	Penetration deptd	min.	1,1	1,58	1,47	1,7	1,88	2,28	2,51	3,02
	Penetration deptd	max.	1,35	1,83	1,93	2,16	2,34	2,74	2,97	3,48
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
4,5	3,7	5,3	3,7	4,5	0,174
6,5	5,7	7,3	5,7	6,5	0,214	0,424
9,5	8,7	10,3	8,7	9,5	0,274	0,532	0,84	1,07	1,26	1,85
13	12,2	13,8	12,2	13	0,344	0,658	1,02	1,29	1,5	2,18	3,24	4,32
16	15,2	16,8	15,2	16	0,404	0,766	1,17	1,48	1,71	2,46	3,62	4,86
19	18,2	19,8	18,2	19		0,874	1,32	1,67	1,92	2,74	4	5,4
22	21,2	22,8	20,7	22			1,47	1,86	2,13	3,02	4,38	5,94
25	24,2	25,8	23,7	25			1,62	2,05	2,34	3,3	4,76	6,48
32	30,7	33,3	30,7	32					2,83	3,96	5,67	7,74
38	36,7	39,3	36,7	38						4,52	6,45	8,82

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Product	Date	Country	Detail
DIN 7981 TORX C A2	2024-07-25 11:13:03	Portugal	See Detail
fasteners	2023-05-15 14:13:08	Netherlands	See Detail
DIN 603, DIN 985, DIN 7981	2023-02-22 09:31:24	Germany	See Detail
DIN 7981 F	2022-12-16 09:24:08	Czech Republic	See Detail
DIN 7981 (~ISO 7049) - A2 - ST	2022-11-21 18:24:52	Germany	See Detail
DIN 7504P	2022-09-12 14:07:58	Serbia	See Detail
DIN 7981 A2 5.5*65	2022-02-11 15:41:11	Ukraine	See Detail
DIN 7981	2021-11-26 10:59:56	Romania	See Detail
DIN 7981 A2 C 2,2x4,5 H	2021-11-17 10:11:38	Poland	See Detail
DIN 7981 A2 C 2,2x4,5 H 5.000.000pcs	2021-09-23 08:06:21	Poland	See Detail
DIN 7981	2021-07-28 23:04:51	United States	See Detail
fasteners	2021-07-16 09:13:13	Lebanon	See Detail
DIN 7981 F ST2,9x13 (ISO 7049)	2021-06-15 07:16:45	Serbia	See Detail
DIN 7981 5.5*65 A2 100000	2021-04-20 16:07:00	Ukraine	See Detail
DIN 7981 C	2021-03-24 07:41:22	India	See Detail
DIN 7981-ST2.9*6.5	2021-02-12 07:19:54	Norway	See Detail
ISO 7050 type F ST2,2*4,5	2021-02-04 18:43:09	Hong Kong	See Detail
DIN 7981 CZ A4	2020-10-15 07:47:03	Malaysia	See Detail
DIN 7981 SCREW	2020-10-14 14:07:10	India	See Detail
Screw 2.9 x 28, DIN 7981, black	2020-09-02 14:37:31	Czech Republic	See Detail
DIN 7981 A2 4,2x9,5	2020-06-17 13:10:42	Poland	See Detail
SCREW DIN 7981	2020-06-01 11:51:42	Estonia	See Detail
stainless steel DIN 933, DIN 912, DIN 6799, DIN 7981, DIN 931	2020-03-10 15:26:29	Czech Republic	See Detail
Screws - DIN 7981-ST2.9*6.5-F-FzB-Z	2020-01-15 09:16:29	Norway	See Detail
DIN 7981 ST2,2X6,5-F	2019-06-17 11:04:33	United Kingdom	See Detail
DIN 7981	2019-05-02 07:00:17	Czech Republic	See Detail
DIN 7981 C - Pan head	2019-04-15 15:41:46	Bulgaria	See Detail
DIN 7981 C	2019-02-26 19:09:10	Portugal	See Detail
DIN 7981 type F 4.2x15.2 A2 300000pcs	2018-11-18 08:13:49	Israel	See Detail
DIN 7981 F A2	2018-11-05 08:05:26	Bulgaria	See Detail
DIN 7981 F SCREWS IN A2	2018-09-13 17:29:14	Netherlands	See Detail
DIN 7981	2018-07-12 10:02:11	Portugal	See Detail
DIN 7981	2018-07-11 21:39:46	Egypt	See Detail
DIN 7981	2017-11-07 07:21:43	United States	See Detail
DIN 7982 , DIN 7981, DIN 7504	2017-10-08 13:59:26	Slovakia	See Detail
DIN 7981 4,2x100	2017-09-21 13:32:53	Poland	See Detail

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