ISO 7051 - Countersunk (Flat) Head Tapping Screws with Cross Recess, Form C

Current norm: DIN ISO 7051
Equivalent norms: DIN 7983 C; CSN 021239; UNI 6956;

Send Inquiry

Company	City	Country	Company profile
TOP LUSAVOUGA - Hardware and Tools	Cacia	Portugal	See Detail
TOP Lectoe Engineering Fasteners 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
MZ Hutní materiály s.r.o.	Pardubice	Czech Republic
Freeney & Tuck Industrial Supplies	Dublin 11	Ireland
FABORY Centre Haaglanden	Nootdorp	Netherlands
Zepo Jihlava spol. s r.o.	Jihlava	Czech Republic
Würth España, S.A.	Gijón	Spain
John Sylvester Fasteners & Plastics Ltd	Bradford	United Kingdom

Legend:

l - length of bolt
d - the nominal diameter of the thread
k - head height
d1 - head diameter

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

Note: All the information provided on this website is provided on an “as is” and “as commonly used in production” basis and you agree that you use such information entirely at your own risk. This website gives no warranty and accepts no responsibility or liability for the accuracy or the completeness of the information and materials contained in this website. Under no circumstances will the website be held responsible or liable in any way for any claims, damages, losses, expenses, costs or liabilities whatsoever (including, without limitation, any direct or indirect damages for loss of profits, business interruption or loss of information) resulting or arising directly or indirectly from your use of or inability to use this website.

Product	Date	Country	Detail
ISO 7051	2021-01-19 12:47:28	Germany	See Detail

There are no overstock items of this product.

Navigace

Language

ISO 7051 - Countersunk (Flat) Head Tapping Screws with Cross Recess, Form C

Current norm: DIN ISO 7051
Equivalent norms: DIN 7983 C; CSN 021239; UNI 6956;

Legend:

Makings:

Table according to ISO 7051:

There are no overstock items of this product.

Social networks

Newsletter

Contact

Language

Terms of Use

Navigace

Language

ISO 7051 - Countersunk (Flat) Head Tapping Screws with Cross Recess, Form C

Current norm: DIN ISO 7051Equivalent norms: DIN 7983 C; CSN 021239; UNI 6956;

Legend:

Makings:

Table according to ISO 7051:

There are no overstock items of this product.

Current norm: DIN ISO 7051
Equivalent norms: DIN 7983 C; CSN 021239; UNI 6956;