ISO 14581 - Hexalobular socket countersunk flat head screws

Current norm: ISO 14581

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Company	City	Country	Company profile
TOP EU 秘密研究所 Portal, s.r.o.	Brno	Czech Republic	See Detail
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
Wurth Ltd	Riga	Latvia
Bolzenschwei脽technik Heinz Soyer GmbH	奥枚谤迟丑蝉别别	Germany
Torniller铆a Y Derivados Met谩licos, S.A. (TORMETAL)	Montcada i Reixac	Spain

Legend:

d1 - the nominal diameter of the thread
k - head height
d2 - head diameter
t - groove depth
L - length of bolt
A - groove

Makings:

Steel: 4.8,8.8
Stainless: A2, A4
Plastic: -
Non Ferrous: -
Thread: 6g

Notes:
-

Table according to ISO 14581:

dimensions in mm

Thread d			M2	M2,5	M3	M3,5	M4	M5	M6	M8	M10
P			without mounting shaft					Stepped shaft
b		min.	25	25	25	38	38	38	38	38	38
dk	teoretic.	max.	4,4	5,5	6,3	8,2	9,4	10,4	12,6	17,3	20
	actuall	nom.=max.	3,8	4,7	5,5	7,3	8,4	9,3	11,3	15,8	18,3
	actuall	min.	3,5	4,4	5,2	6,94	8,04	8,94	10,87	15,37	17,78
kc		nom.=max.	1,2	1,5	1,65	2,35	2,7	2,7	3,3	4,65	5
r		max.	0,5	0,6	0,8	0,9	1	1,3	1,5	2	2,5
Inner hexalobular	hexalobular number		6	8	10	15	20	25	30	45	50
	A	ref.	1,75	2,4	2,8	3,35	3,95	4,5	5,6	7,95	8,98
	t	max.	0,64	0,79	0,83	1,32	1,53	1,51	1,78	2,54	2,8
	t	min.	0,51	0,66	0,7	1,16	1,14	1,12	1,39	2,15	2,41
l
nom.	min.	max.
3	2,8	3,2	+	+
4	3,76	4,24	+	+	+
5	4,76	5,25	+	+	+	+	+
6	5,76	6,24	+	+	+	+	+	+
8	7,71	8,29	+	+	+	+	+	+	+
10	9,71	10,29	+	+	+	+	+	+	+	+
12	11,65	12,35	+	+	+	+	+	+	+	+	+
14	13,65	14,35	+	+	+	+	+	+	+	+	+
16	15,65	16,35	+	+	+	+	+	+	+	+	+
20	19,58	20,42	+	+	+	+	+	+	+	+	+
25	24,58	25,42		+	+	+	+	+	+	+	+
30	29,58	30,42			+	+	+	+	+	+	+
35	34,5	35,5				+	+	+	+	+	+
40	39,5	40,5					+	+	+	+	+
45	44,5	45,5						+	+	+	+
50	49,5	50,5						+	+	+	+
55	54,05	55,95							+	+	+
60	59,05	60,95							+	+	+

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Product	Date	Country	Detail
ISO 14581	2024-11-08 07:55:12	Slovenia	See Detail
ISO 14581 and ISO 14583	2024-10-02 16:24:31	India	See Detail
fasteners	2024-07-08 11:28:15	Bulgaria	See Detail
ISO 14581 M3.5 x 8 black	2024-04-22 08:11:09	Slovenia	See Detail
ISO 14581	2024-02-28 11:21:51	United Kingdom	See Detail
Torx screw ISO 14581 M3.5x14	2023-11-28 16:20:49	Germany	See Detail
ISO 14581 M3X6	2023-06-15 23:03:08	United States	See Detail
fasteners	2023-04-28 19:28:17	United Arab Emirates	See Detail
fasteners	2023-03-24 11:01:42	United Arab Emirates	See Detail
Stainless Steel 316 (A4) screws & washers	2023-01-31 16:02:49	Slovakia	See Detail
ISO 14581 M2.5x5x5-N-Ti-6Al-4V	2022-10-19 12:09:32	Lithuania	See Detail
M8 X 30 S/S TORX CSK SCREW A4 ISO 14581	2022-09-21 12:15:18	United Kingdom	See Detail
EN ISO 14581-M3X12-8.8-A2K	2022-07-20 18:28:06	United States	See Detail
Bolts	2022-03-01 15:27:27	United Arab Emirates	See Detail
A4 ISO 14581 M6x22	2022-02-07 09:24:42	Iceland	See Detail
ISO 14581	2021-12-07 06:35:00	Slovakia	See Detail
ISO 14581	2021-10-16 19:56:34	Germany	See Detail
screw according to ISO 14581	2021-06-30 11:17:37	Germany	See Detail
ISO 14581 M8x25 8.8 Dacromet	2021-04-29 08:33:38	Czech Republic	See Detail
SCREW ISO 14581 A2	2021-03-14 20:06:55	Greece	See Detail
ISO 14581 A4	2020-10-20 15:00:36	Germany	See Detail
ISO 14581 M2,5x25	2020-07-21 14:19:18	Croatia	See Detail
ISO 14581 M2,5 x 22mm	2020-07-13 14:41:46	Spain	See Detail
ISO 14581	2020-06-25 12:22:23	Spain	See Detail
ISO 14581 M10x30	2020-05-26 09:41:54	Czech Republic	See Detail
ISO 14581 DIN 965T	2020-03-16 17:31:24	United Kingdom	See Detail
ISO 14581, M3, 14mm	2019-11-15 10:45:20	Denmark	See Detail
ISO 14581	2019-10-08 14:49:34	Czech Republic	See Detail
ISO 14581	2019-05-31 08:45:44	Germany	See Detail
ISO 14581 -St.Class 8.8 M8x20	2019-05-09 13:22:41	Thailand	See Detail
ISO 14580 A4	2019-04-17 13:26:51	Germany	See Detail
ISO 14581 M2 x 6 Torx	2019-04-01 22:22:16	Netherlands	See Detail
ISO 14581	2018-12-03 11:35:37	Germany	See Detail
ISO 14581 M3,5x20 A2	2018-04-11 12:12:15	Poland	See Detail

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