AYA FASTENERS Guide | What Are Countersunk Head Machine Screws?

AYA Countersunk Head Machine Screws Countersunk Head Machine Screws answer all your problems with the fastening you've been looking for. These screws are developed to give excellent performance in various applications because they have been designed with accuracy and dependability in mind during the design process. Countersunk Head Machine Screws are multipurpose fasteners that may be used to fasten various materials securely. These screws have a countersunk head design, are made of high-quality materials, and perform well. As a result, they give a clean finish, increased strength, and corrosion resistance. Countersunk head machine screws no matter if you are working on a project involving carpentry, building, automobiles, or electricity, screws are a reliable solution for satisfying your requirements for fastening.

Countersunk Head Machine Screws Dimensions Table(DIN 963)

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Thread Size d		M1	M1.2	M1.4	M1.6	M2	M2.5	M3	(M3.5)	M4
P	Pitch	0.25	0.25	0.3	0.35	0.4	0.45	0.5	0.6	0.7
a	max	0.5	0.5	0.6	0.7	0.8	0.9	1	1.2	1.4
dk	max=nominal size	1.9	2.3	2.6	3	3.8	4.7	5.6	6.5	7.5
dk	min	1.76	2.06	2.46	2.86	3.5	4.4	5.3	6.14	7.14
k	max	0.6	0.72	0.84	0.96	1.2	1.5	1.65	1.93	2.2
n	max	0.45	0.5	0.5	0.6	0.7	0.8	1	1	1.2
n	min	0.31	0.36	0.36	0.46	0.56	0.66	0.86	0.86	1.06
r	max	0.1	0.12	0.14	0.16	0.2	0.25	0.3	0.35	0.4
t	max	0.3	0.35	0.4	0.45	0.6	0.7	0.85	1	1.1
t	min	0.2	0.25	0.28	0.32	0.4	0.5	0.6	0.7	0.8
x	max	-	-	-	0.9	1	1.1	1.25	1.5	1.75

Thread Size d		M5	M6	M8	M10	M12	(M14)	M16	(M18)	M20
P	Pitch	0.8	1	1.25	1.5	1.75	2	2	2.5	2.5
a	max	1.6	2	2.5	3	3.5	4	4	5	5
dk	max=nominal size	9.2	11	14.5	18	22	25	29	33	36
dk	min	8.84	10.57	14.07	17.57	21.48	24.48	28.48	32.38	35.38
k	max	2.5	3	4	5	6	7	8	9	10
n	max	1.51	1.91	2.31	2.81	3.31	3.31	4.37	4.37	5.37
n	min	1.26	1.66	2.06	2.56	3.06	3.06	4.07	4.07	5.07
r	max	0.5	0.6	0.8	1	1.2	1.4	1.6	1.8	2
t	max	1.3	1.6	2.1	2.6	3	3.5	4	4.5	5
t	min	1	1.2	1.6	2	2.4	2.8	3.2	3.6	4
x	max	2	2.5	3.2	3.8	4.4	5	5	6.3	6.3
①, Material: a)Steel, Strength class (material): 4.8,5.8,8.8. Standard DIN ISO 898-1 b)Stainless steel, Strength class (material): A2-70, A4-70. Standard DIN 267-11 c)Non-ferrous metal, Strength class (material): CuZn=copper zinc alloy, CU2 or CU3 according to the manufacturer's choice. Standard DIN 267-18 d)Other strength classes or materials or a certain material, e.g. CU3, by agreement

Countersunk Head Machine Screws Features

Countersunk Head Design: These screws have a countersunk head that rests flush with the surface once fitted. This ensures a clean and professional appearance once they have been used.
Material of the Highest Quality: These screws offer outstanding strength and endurance since they are crafted from robust and corrosion-resistant materials, such as stainless steel or alloy steel.
Threaded Shaft: The screws come equipped with an utterly threaded shaft, which enables secure fastening and increased holding force.
Phillips Drive or Slotted Drive: Their Countersunk Head Machine Screws are available with either a Phillips drive or a slotted drive for simple installation, depending on your preference and the standards you must meet.

Advantages Of Countersunk Head Machine Screws

● A Look That Is Both Clean and Attractive to the Eye. The Countersunk Head Machine Screws design guarantees that the screw rests flush with the surface, resulting in a clean and attractive look.
● Enhanced Attachment Strength. These screws have a completely threaded shaft, which permits a tight and secure attachment. This reduces the possibility of the extension coming free or the structure falling apart.
● Countersunk head machine screws are made from high-quality materials, and as a result, they offer excellent resistance to corrosion. As a result of this property, they are suited for use in applications inside or outside.
● Because of their versatility, these screws are used in various sectors, including construction, woodworking, industrial, automotive, etc. They provide dependable fastening solutions for these and other applications.

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Applications

Countersunk Head Machine Screws are frequently used in carpentry and woodworking tasks that need a flush and smooth finish, such as assembling furniture, installing cabinets, and other similar endeavors.
In applications related to construction and engineering, these screws are an excellent choice for fastening metal or plastic components, combining materials, or installing hardware. These screws are a good choice for use in the assembly of vehicles and machinery due to their durable construction and ability to offer firm fastening. They are also an ideal choice for use in creating machinery and maintaining equipment due to their versatility. Countersunk head machine screws are also employed in constructing electrical and electronic equipment. This makes it easier to ensure the components are placed firmly and the electrical connections are maintained.

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