DIN 7972 Self-Tapping Screw / Wood Screw (Self-Tapping Screw)

DIN 7972 is a self-tapping screw (self-tapping wood screw) with a countersunk head and a straight slot. It is used for fastening components to metal, wood, plastic and other substrates. Made of carbon steel, stainless steel A2 and A4. Carbon steel products are zinc-plated. Complies with ISO 1482.

A distinctive feature of this fastener is the countersunk head with a straight slot designed for driving the fastener into its working position. The item can function either as a wood screw with a pointed end or as a screw — in the latter case, it can be used with a nut and washers.

The wood screw is used in furniture manufacturing, repair work, mechanical engineering and instrument making. Depending on operating conditions, it is made of high-strength steels or stainless steel grades A2 and A4. For use in humid environments, the metal fastener is additionally electroplated with zinc. It is also available in acid-resistant steel A4.

Standard DIN 7972 corresponds to ISO 1482.

Description: DIN 7972 is a self-tapping screw with a countersunk head, straight slot and full thread. Form C — with a pointed end.

Materials:

• Steel
• Coated steel: electrogalvanized
• Stainless steel: A2, A4

Dimensions of DIN 7972 self-tapping screws (wood screws) in mm:

dk	4.3	5.5	6.8	7.5	8.1	9.5	10.8	12.4
k min	1.3	1.7	2.1	2.3	2.5	3	3.4	3.8
n	0.6	0.8	1	1	1.2	1.2	1.6	1.6
l	d
	2.2	2.9	3.5	3.9	4.2	4.8	5.5	6.3
6.5
9.5
13
16
19
22
25
32
38
45
50
60
70
80
90
100

Dimensions of DIN 7972 self-tapping screws for metal in mm

d	2.2	2.9	3.5	3.9	4.2	4.8	5.5	6.3
dk	4.3	5.5	6.8	7.5	8.1	9.5	10.8	12.4
k	1.3	1.7	2.1	2.3	2.5	3.0	3.4	3.8
n	0.6	0.8	1.0	1.0	1.2	1.2	1.6	1.6

Designations:

d — thread diameter

dk — countersunk head diameter

k — head height

n — straight slot width