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Screw with a semicircular head GOST 1144-80

Screw with a semicircular head GOST 1144-80

Screw GOST 1144-80 with a semi-circular head, equipped with a slot, made of steel 3.6 strength class. The metal rod of a part with a fine thread pitch can be 1.6–10 mm in diameter. According to GOST, hardware of this type can be produced both without a protective coating, and with a galvanized or galvanized coating.Screws with a semicircular head are most in demand in everyday life and the furniture industry for fastening structural elements made of solid wood, chipboard, gypsum boards. Screws are used as a self-sufficient fastener.

Characteristics

Dimensions of screws with a semicircular head GOST 1144-80 in mm
Head diameter	5	6	7	8	9	10	11	12	16
Head height	1.7	2.1	2.4	2.8	3.1	3.5	3.8	4.2	5.6
Spline	0.6	0.8	0.8	1	1	1.2	1.2	1.6	2
Length	Diameter
Length	2.5	3	3.5	4	4.5	5	5.5	6	8
10	+	+	+
12	+	+	+	+
16	+	+	+	+	+	+
20	+	+	+	+	+	+	+	+
25	+	+	+	+	+	+	+	+
30		+	+	+	+	+	+	+	+
35		+	+	+	+	+	+	+
40		+	+	+	+	+	+	+
45			+	+	+	+	+	+
50			+	+	+	+	+	+	+
60				+	+	+	+	+	+
65					+	+	+	+
70				+	+	+	+	+	+
75						+	+	+
80						+	+	+	+
90						+	+	+	+
100						+	+	+	+
110								+	+
120								+	+
130								+

Conforms to DIN 96 and DIN 7981.

GOST documentation