DIN 7991 Hexagon Socket Countersunk Head Cap Screws

• Customization: Available
• Material: High Strength Steel
• Type: Hexagon Head
• Model NO.: DIN 7991
• Connection: Common Bolt
• Head Style: Hexagonal
• Standard: DIN, ANSI, GB, JIS, GOST
• Grade: 8.8
• Application: Machinery, Chemical Industry, Environmental, Building
• Finish: Hot Galvanizing
• Product Name: Hexagon Socket Countersunk Head Cap Screws
• Standard for Size: DIN 7991
• Standard Name: ISO 10642
• Material Grade: 8.8, 10.9, A2-80, A4-80
• Diameter Range: M3 - M24
• Inch Diameter Range: 0# to 1-1/2"
• Transport Package: Pallet
• Specification: 25cm x 25cm x 15cm
• Trademark: GT
• Origin: Shanghai
• HS Code: 7318159090
• Production Capacity: 10000 Tons Per Year
• Package Size: 25.00cm * 25.00cm * 15.00cm
• Package Gross Weight: 25.000kg

Product Description

 

 

Screw Thread
d

M3

M4

M5

M6

M8

M10

M12

(M14)

M16

(M18)

M20

(M22)

M24

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

 

Nominal Diameter
d

0#

1#

2#

3#

4#

5#

6#

8#

10#

12#

1/4

5/16

d	Nominal Diameter
PP	UNC
	UNF
	UNEF
ds	max
	min
dk	max
	min
k	Ref
s	Nominal Size
	Nominal Size
t	min
b	min
α	±2°

0.06	0.073	0.086	0.099	0.112	0.125	0.138	0.164	0.19	0.2158	0.25	0.3125
-	64	56	48	40	40	32	32	24	24	20	18
80	72	64	56	48	44	40	36	32	28	28	24
-	-	-	-	-	-	-	-	-	32	32	32
0.06	0.073	0.086	0.099	0.112	0.125	0.138	0.164	0.19	0.2158	0.25	0.3125
0.0568	0.0695	0.0822	0.0949	0.1075	0.1202	0.1329	0.1585	0.184	0.2102	0.2435	0.3053
0.138	0.168	0.197	0.226	0.255	0.281	0.307	0.359	0.411	0.45	0.531	0.656
0.117	0.143	0.168	0.193	0.218	0.24	0.263	0.311	0.359	0.41	0.48	0.6
0.044	0.054	0.064	0.073	0.083	0.09	0.097	0.112	0.127	0.135	0.161	0.198
-	-	-	1/16	1/16	5/64	5/64	3/32	1/8	1/8	5/32	3/16
0.035	0.05	0.05	0.062	0.062	0.078	0.078	0.094	0.125	0.125	0.156	0.188
0.025	0.031	0.038	0.044	0.055	0.061	0.066	0.076	0.087	0.094	0.111	0.135
0.5	0.62	0.62	0.62	0.75	0.75	0.75	0.88	0.88	0.88	1	1.12
82°	82°	82°	82°	82°	82°	82°	82°	82°	82°	82°	82°

 

Nominal Diameter
d

3/8

7/16

1/2

5/8

3/4

7/8

1

1-1/8

1-1/4

1-3/8

1-1/2

d	Nominal Diameter
PP	UNC
	UNF
	UNEF
ds	max
	min
dk	max
	min
k	Ref
s	Nominal Size
	Nominal Size
t	min
b	min
α	±2°

0.375	0.4375	0.5	0.625	0.75	0.875	1	1.125	1.25	1.375	1.5
16	14	13	11	10	9	8	7	7	6	6
24	20	20	18	16	14	12	12	12	12	12
32	28	28	24	20	20	20	18	18	18	18
0.375	0.4375	0.5	0.625	0.75	0.875	1	1.125	1.25	1.375	1.5
0.3678	0.4294	0.4919	0.6163	0.7406	0.8647	0.9886	1.1086	1.2336	1.3568	1.4818
0.781	0.844	0.938	1.188	1.438	1.688	1.938	2.188	2.438	2.688	2.938
0.72	0.781	0.872	1.112	1.355	1.604	1.841	2.079	2.316	2.553	2.791
0.234	0.234	0.251	0.324	0.396	0.468	0.54	0.611	0.683	0.755	0.827
7/32	1/4	5/16	3/8	1/2	9/16	5/8	3/4	7/8	7/8	1
0.219	0.25	0.312	0.375	0.5	0.562	0.625	0.75	0.875	0.875	1
0.159	0.159	0.172	0.22	0.22	0.248	0.297	0.325	0.358	0.402	0.435
1.25	1.38	1.5	1.75	2	2.25	2.5	2.81	3.12	3.44	3.75
82°	82°	82°	82°	82°	82°	82°	82°	82°	82°	82°

 

Thread Rods and Stud Bolts

----DIN 976-1 Fasteners - Stud bolts - Part 1: Metric thread
----DIN 975   Threaded Rods
----ASME B 18.31.1M - 2008 (R2016) Metric Continuous-Thread Studs [Table 1] (ASTM F568, F738M, F468M)
----ASME B 18.31.2 - 2014  Continuous Thread Stud(A193 / A320 / A437 / A453/A540/A1014)(Inch Series) [Table 1]
----ASME B 18.31.3 - 2014  Inch Threaded Rod (F568M, A193/A193M, F738M, F468M)
 

Heavy Hex Bolts

----ASME B 18.2.6 - 2019  Heavy Hex Structural Bolts (ASTM F3125 / F3125M)
----ASME B 18.2.1 - 2012 [Table 3]  Heavy Hex Bolts [Table 3] (ASTM A307 / A394)
----ASME B 18.2.1 - 2012 [Table 7]  Heavy Hex Screws [Table 7] (ASTM A193 / A320 / A394)
----ASME/ANSI B 18.2.3.7M - 2006  Metric heavy hex structural bolts
----EN 14399 (-3 Bolt) - 2015  High-strength structural bolting assemblies for preloading - Part 3: System HR - Hexagon bolt assemblies
----EN 14399 (-4 Bolt) - 2005  High-strength structural bolting assemblies for preloading - Part 4: System HV - Hexagon bolt
 

Heavy Hex Nuts

----ASME B 18.2.2 - 2022 [Table 10]  Heavy Hex Flat Nuts and Heavy Hex Flat Jam Nuts [Table 10] (ASTM A563 / F594 / F467)
----ASME B 18.2.6 - 2019  Heavy Hex Nuts for Use With Structural Bolts (ASTM A563 / A194 / A194M)
----EN 14399 (-3 Nut) - 2015  High-strength structural bolting assemblies for preloading - Part 3: System HR - Hexagon nut assemblies
----EN 14399 (-4 Nut) - 2005  High-strength structural bolting assemblies for preloading - Part 4: System HV - Hexagon nut
 

Testing Equipment

Exhibition

F A Q

Product Details