DIN 85 Pan Head Screw, Slot

The German standard DIN 85 covers the manufacture of screws with a cylindrical (pan-shaped) head. The head has a straight slot, and the metal shank carries a full metric thread with a standard pitch. This is a widely used type of fastener: a universal product applied for joining parts made of metal, wood, plastic and other materials, used across many manufacturing industries.

Screw design and materials used

DIN 85 specifies the manufacture of a universal fastener that can be used in a wide variety of machines and mechanisms. Its main purpose is to create a strong, detachable threaded joint. The straight slot in the head allows quick tightening and loosening with a flat-blade screwdriver. The thread diameter ranges from M1.6 to M10, and the product length can range from 3 to 100 mm.

The following materials are used in the manufacture of the screw:

• Carbon steel, uncoated or zinc-plated. Zinc plating prevents premature corrosion damage.
• A2 and A4 stainless steels. These are acid-resistant alloys that can be used under prolonged exposure to aggressive environments.

The screw has a rounded cylindrical (pan) head that rises above the material surface. Such screws have good aesthetic qualities, so they do not need to be concealed. The products can be used together with washers to increase the contact area and reduce pressure. Large-diameter washers allow the screws to be used for joining thin sheet materials.

Application options and ordering conditions

Fasteners of this type are used for assembling instruments, machine tools and other industrial equipment, and are also widely used in mechanical engineering. DIN 85 screws are used in the assembly of cars, ships and aircraft, as well as in the manufacture of furniture and various household items.

Dimension table for DIN 85 pan head screw (slot)

dk		3.2	4	5	6	7	8	10	12	16	20
k		1	1.3	1.5	1.8	2.1	2.4	3	3.6	4.8	6
n		0.4	0.5	0.6	0.8	1	1.2	1.2	1.6	2	2.5
l		d
		M1.6	M2	M2.5	M3	M3.5	M4	M5	M6	M8	M10
DIN 85 Screw	3
DIN 85 Screw	4
DIN 85 Screw	5
DIN 85 Screw	6
DIN 85 Screw	8
DIN 85 Screw	10
DIN 85 Screw	12
DIN 85 Screw	14
DIN 85 Screw	16
DIN 85 Screw	18
DIN 85 Screw	20
DIN 85 Screw	22
DIN 85 Screw	25
DIN 85 Screw	28
DIN 85 Screw	30
DIN 85 Screw	35
DIN 85 Screw	40
DIN 85 Screw	45
DIN 85 Screw	50
DIN 85 Screw	55
DIN 85 Screw	60
DIN 85 Screw	65
DIN 85 Screw	70
DIN 85 Screw	75
DIN 85 Screw	80
DIN 85 Screw	90
DIN 85 Screw	100

d		M2	M2.5	M3	M4	M5	M6	M8
P		0.4	0.45	0.5	0.7	0.8	1	1.25
dk		4	5	6	8	10	12	16
k		1.3	1.5	1.8	2.4	3	3.6	4.8
n		0.5	0.6	0.8	1.2	1.2	1.6	2
l	min.	2.5	3	4	5	6	8	10
	max.	20	25	30	40	50	60	80