Click Specification

(Non-preferred) dimensions in parentheses.

Hexagon Socket Countersunk Head Cap Screws

DIN 7991 - 1986

Display drawing:

Download CAD Model

Download CAD Model^*

^*Models with different eras.

Calculate weight and price. Weight 1000 pcs : kg x $ per kg = $ 1000 pcs

Default density g/cm³

Nominal Length L Tips:seclect Nominal Length L and get Weight Thread length.

Screw Thread
d

M10

M12

(M14)

M16

(M18)

M20

(M22)

M24

P	Pitch
α	tol.(+2)
b	L≤125
	125＜L ≤ 200
	L＞200
d_k	max=nominal size
d_k	min
d_s	max=nominal size
d_s	min
e	min
k	max
s	Nominal Size
	min
	max
t	max=nominal size
t	min

0.5	0.7	0.8	1	1.25	1.5	1.75	2	2	2.5	2.5	2.5	3
90°	90°	90°	90°	90°	90°	90°	90°	90°	90°	90°	60°	60°
12	14	16	18	22	26	30	34	38	42	46	50	54
/	/	/	24	28	32	36	40	44	48	52	56	60
/	/	/	/	/	45	49	53	57	61	65	69	73
6	8	10	12	16	20	24	27	30	33	36	36	39
5.7	7.64	9.64	11.57	15.57	19.48	23.48	26.48	29.48	32.38	35.38	35.38	38.38
3	4	5	6	8	10	12	14	16	18	20	22	24
2.86	3.82	4.82	5.82	7.78	9.78	11.73	13.73	15.73	17.73	19.67	21.67	23.67
2.3	2.87	3.44	4.58	5.72	6.86	9.15	11.43	11.43	13.72	13.72	16	16
1.7	2.3	2.8	3.3	4.4	5.5	6.5	7	7.5	8	8.5	13.1	14
2	2.5	3	4	5	6	8	10	10	12	12	14	14
2.02	2.52	3.02	4.02	5.02	6.02	8.025	10.025	10.025	12.032	12.032	14.032	14.032
2.1	2.6	3.1	4.12	5.14	6.14	8.175	10.175	10.175	12.212	12.212	14.212	14.212
1.2	1.8	2.3	2.5	3.5	4.4	4.6	4.8	5.3	5.5	5.9	8.8	10.3
0.95	1.55	2.05	2.25	3.2	4.1	4.3	4.5	5	5.2	5.6	8.44	9.87

Weight of per 1000 steel products(≈kg)

Length of Thread b

①,e_min = 1.14 S_min

Alternative history

DIN 7991 - 1986 DIN EN ISO 10642 - 2004 DIN EN ISO 10642 - 2013 DIN EN ISO 10642 - 2020

Suppliers

Best price if from GlobalFastener.com.

Shanghai Kinsom Precision Hardware Co.,Ltd

Tina Cheung
+86-18114615363
+86-512-57889792

material:carbon steel，copper，Stainless steel 304 ,316,aluminum;Specifications:M2-M20 , 8-32 ,1/4-20 ,10-24 etc;Nominal length:5-200mm;Surface treatment:according to customers' requirements；Zinc plated, Zinc nickel plated, Dacromet, polished, electrophoresis,ect.

Shanghai Chengtai Hardware Manufacturing Co., Ltd.

Mr.Zhuge
+86-18916049888
+86-21-59742477/59740118

Material: stainless steel; Specification: complete; Surface treatment: according to customer requirement

Suzhou Hanlinyu Precision Hardware Co., Ltd.

Amy Li
+86-13771867939/13771793559
+86-512-65868465

Material: Carbon steel, Stainless steel; Grade: 8.8; Specifications: M2-M24

NingBo ZhenHai Guisi Zhaoyang Hardware Screw Factory

Mr.Fang
+86-13806639241
+86-574-86574666

Material: carbon steel; Specifications: M5-M24; Length: 20mm~250mm;Surface treatment: nature, black, galvanized, rohs, hot galvanized, dacromet; Grade: 4.8~12.9

Ningbo SiTuo Fastener Co., Ltd

Petty Cao
+86-15381997760

Material: carbon steel, stainless steel; Grade: 4.8, 8.8, 10.9, 12.9; Surface treatment: according to customer requirements; Complete specifications, non-standard customization.

Suzhou Yongchuang Fastener Factory

Mr. Tang
+86-15298892886
+86-512-66700967

Material: stainless steel, carbon steel; Nominal diameter: M1-M14; Nominal length: 5-400mm

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10	[IFI] IFI 535 - 1982	Metric Socket Countersunk Head Cap Screws
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13	[ASME/ANSI] ASME/ANSI B 18.3.5M - 1993	Metric Hexagon Socket Countersunk Head Screws
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16	[ASME] ASME B 18.3 (T8) - 2012	Hexagon Socket Flat Countersunk Head Cap Screws [Table 8] (ASTM F835 / F879)
17	[UNI] UNI 5933 - 1988	Hexagon Socket Countersunk Head Screws - ISO Metric Coarse Pitch Thread - Product Grade A
18	[BS] BS 4168-8 - 1982	Metric Hexagon Socket Countersunk Head Screws
19	[NF] NF E 25-146 - 2004	Hexagon Socket Countersunk Head Screws
20	[BS] BS 2470 - 1973	Hexagon Socket Countersunk Head Screws - Unified Thread
21	[JIS] JIS B 1194 - 2006	Hexagon Socket Countersunk Head Screws
22	[CNS] CNS 4558 - 1981	Hexagon Socket Countersunk Head Screws
23	[IS] IS 6761 - 1994 (R2004)	Countersunk Head Screws with Hexagon Socket