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Metric Hexagon Socket Countersunk Head Cap Screws (ASTM F835M F879M A1-70)

Metric Hexagon Socket Countersunk Head Cap Screws, compliant with ASTM F835M, F879M, and A1-70 standards, ensure precise fastening, flush installation, high strength, and versatility, meeting the demands of diverse applications.

Model:ANSI ASME B 18.3.5M

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Product Description

Precision Fastening: Metric Hexagon Socket Countersunk Head Cap Screws, meeting the ASTM F835M, F879M, and A1-70 standards, adhere to the ANSI ASME B 18.3.5M - 1986 (R2008) specifications, ensuring precise and reliable fastening solutions.

Flush Installation: With their countersunk head design, these screws facilitate a flush installation, reducing surface protrusion and enhancing the overall appearance of the assembly.

High Strength: Manufactured with materials meeting stringent standards, including ASTM F835M, F879M, and A1-70, these screws offer high strength and durability, suitable for demanding applications requiring robust fastening solutions.

Versatile Application: Whether in machinery, automotive, or structural applications, these screws provide versatile fastening options, offering secure and stable connections for various components.

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

Thread Size
d

M10

M12

(M14)

M16

M20

P	Thread Pitch
d_s	max
d_s	min
d_k	max
d_k	min
k	Ref.
s	Nominal Size
	max
	min
e	min
t	min
b	min
α	0,+2°

0.5	0.7	0.8	1	1.25	1.5	1.75	2	2	2.5
3	4	5	6	8	10	12	14	16	20
2.86	3.82	4.82	5.82	7.78	9.78	11.73	13.73	15.73	19.67
6.72	8.96	11.20	13.44	17.92	22.40	26.88	30.24	33.60	40.32
5.35	7.8	9.75	11.7	15.6	19.5	23.4	26.18	28.96	34.60
1.86	2.48	3.10	3.72	4.96	6.20	7.44	8.12	8.80	10.16
2	2.5	3	4	5	6	8	10	10	12
2.045	2.560	3.071	4.084	5.084	6.095	8.115	10.127	10.127	12.146
2.02	2.52	3.02	4.02	5.02	6.02	8.025	10.025	10.025	12.032
2.3	2.87	3.44	4.58	5.72	6.86	9.15	11.5	11.5	13.8
1.1	1.5	1.9	2.2	3	3.6	4.3	4.7	4.8	5.6
18	20	22	24	28	32	36	40	44	52
90°	90°	90°	90°	90°	90°	90°	90°	90°	90°

Length of Thread b

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