GB 820 - 1985 Cross recessed raised countersunk head screws

Unit: mm

国标GB 820 - 1985 GB820 820GB Cross recessed raised countersunk head screws

Screw Thread
d

M1.6

M2.5

M10

P	Pitch
a	max
b	min
d_k	theor.	max
	Actual	max=nominal size
		min
k	max
x	max
Socket No.
M₁	Ref.
M₂	Ref.
Penetration depth	Type H	min
		max
	Type Z	min
		max

0.35	0.4	0.45	0.5	0.7	0.8	1	1.25	1.5
0.7	0.8	0.9	1	1.4	1.6	2	2.5	3
25	25	25	25	38	38	38	38	38
3.6	4.4	5.5	6.3	9.4	10.4	12.6	17.3	20
3	3.8	4.7	5.5	8.4	9.3	11.3	15.8	18.3
2.7	3.5	4.4	5.2	8	8.9	10.9	15.4	17.8
1	1.2	1.5	1.65	2.7	2.7	3.3	4.65	5
0.9	1	1.1	1.25	1.75	2	2.5	3.2	3.8
0	0	1	1	2	2	3	4	4
1.9	2	3	3.4	5.2	5.4	7.3	9.6	10.4
2	2.2	3	3.8	5.2	5.6	7.2	9.6	10.4
0.9	1.2	1.5	1.8	2.7	2.9	3.5	4.75	5.5
1.2	1.5	1.85	2.2	3.2	3.4	4	5.25	6
0.95	1.15	1.5	1.8	2.65	2.9	3.4	4.75	5.6
1.2	1.4	1.75	2.1	3.1	3.35	3.85	5.2	6.05

Alternative history

GB /T 820 - 1985 GB /T 820 - 2000 GB /T 820 - 2015

Suppliers

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Jiangsu BofanKe Precision Metal Technology Co., Ltd.
Mobile Phone: 15298892886/15262400870 Telephone: 0516-86839568
Material: stainless steel, carbon steel; Nominal diameter: M1-M14; Nominal length: 5-400mm

Similar Standards

1	[GB] GB /T 820 - 2000	Raised Countersunk Head Screws(Common Head Style)With Cross Recess Suppliers(1)
2	[GB] GB /T 13806.1 (C) - 1992	Cross Recessed Raised Countersunk Head Screws For Fine Mechanics
3	[GB] GB 974 - 1976	120°Cross recessed raised countersunk screws
4	[DIN] DIN 966 - 1990	Cross Recessed Raised Countersunk Head Screws Suppliers(1)
5	[ISO] ISO 7047 - 2011	Rasied Countersunk Head Screws(Common Head Style) With Type H Or Type Z Cross Recess-Product Grade A Suppliers(1)
6	[ISO] ISO 7047 - 1994	Countersunk Rasied Head Screws(Common Head Style) With Type H Or Type Z Cross Recess - Product Grade A Suppliers(1)
7	[JIS] JIS B 1111 - 2017	Cross Recessed Raised Countersunk Head Screws
8	[JIS] JIS B 1111 - 2017	Cross Recessed Raised Countersunk Head Screws
9	[JIS] JIS B 1111 - 2006	Cross Recessed Raised Countersunk Head Screws
10	[JIS] JIS B 1111 - 1996	Cross Recessed Raised Countersunk Head Screws
11	[ANSI/ASME] ANSI/ASME B 18.6.3 - 2010	80° Cross recessed raised countersunk head screws
12	[ANSI/ASME] ANSI/ASME B 18.6.7M - 1998	Metric cross recessed raised countersunk screws
13	[ANSI/ASME] ANSI/ASME B 18.6.7M - 1998	Metric PZ drives raised countersunk head screws
14	[ANSI/ASME] ANSI/ASME B 18.6.3 - 2013	Recess Dimensions for Oval 82-deg Coutersunk Trim Head Screws
15	[NF] NF E 25-120 - 1994	Cross Recessed Raised Countersunk Head Screws, With Type H Or Type Z Cross Recessed - Product Grade A
16	[BS] BS 1981 - 1991	Recessed Raised Countersunk Head Machine Screws: Short Length
17	[BS] BS 1981 - 1991	Recessed raised Countersunk Head Machine Screws
18	[BS] BS 450 - 1958	Recessed 90° Raised-Countersunk Head Screws with B.S.W. & B.S.F. Threads [Table 3]
19	[AS] AS /NZS 1427 - 1996	ISO metric cross-recess raised countersunk screws [Table 2]
20	[CNS] CNS 4561 - 1981	Cross Recessed Raised Countersunk Head Screws
21	[KS] KS B 1023 - 2001	Cross Recessed Raised Countersunk Head Screws
22	[DIN EN ISO] DIN EN ISO 7047 - 2011	Raised Countersunk Head Screws (Common Head Style) with Type H or Type Z Cross Recess - Product Grade A Suppliers(1)
23	[ASME] ASME B 18.6.3 - 2013	Oval 82-deg Countersunk Trim Head Screws [Table 15] (ASTM F837 / F468)