GOST 1482-84 Square-Head Set Screws with Cylindrical Point, Product Grades A and B. Construction and Dimensions

INTERSTATE STANDARD
SQUARE-HEAD SET SCREWS WITH CYLINDRICAL POINT, PRODUCT GRADES A AND B. CONSTRUCTION AND DIMENSIONS Square-head dog-point set screws. Product grades A and B. Construction and dimensions	GOST 1482-84

Effective date 01.01.86

This standard applies to set screws with a nominal thread diameter from 6 to 20 mm.

The construction and dimensions of the screws shall conform to those shown in the drawing and table.

mm

Nominal thread diameter d		6	8	10	12	16	20
Width across flats S		7	8	10	12	17	22
Head height k		6	7	8	10	14	18
Circumscribed circle diameter e		9	10	13	16	22	28
Screw length l	12		-	-	-	-	-
	14			-	-	-	-
	16				-	-	-
	20					-	-
	25						-
	30			Standard lengths			-
	35
	40	-
	45	-	-
	50	-	-
	55	-	-	-
	60	-	-	-
	65	-	-	-	-
	70	-	-	-	-
	75	-	-	-	-
	80	-	-	-	-
	90	-	-	-	-	-
	100	-	-	-	-	-

Example of designation for a screw of product grade D, thread diameter mm, with tolerance class 6g, length l = 25 mm, property class 14H, without coating:

Screw B.M10-6g×25.14H GOST 1482-84

Same, product grade A, property class 45H, made of steel 40Kh with chemical oxide coating, oil-impregnated:

Screw A.M10-6g×25.45H.40Kh.05 GOST 1482-84

Same, made of brass LS 59-1, without coating:

Screw A.M10-6g×25.32 GOST 1482-84

Thread — per GOST 24705, thread pitch — coarse. Thread run-out — normal, per GOST 10549.

Radius under the head — per GOST 24670.

Screw point — cylindrical, per GOST 12414.

Tolerances and methods for checking dimensions, form and position deviations of surfaces — per GOST 1759.1.

Surface defects and inspection methods — per GOST 1759.2.

Mechanical properties and test methods for screws: made of carbon and alloy steel — per GOST 25556; made of corrosion-resistant, heat-resistant, heat-resisting steel and non-ferrous alloys — per GOST 1759.1, GOST 1759.2, GOST 1759.4.

Screws are manufactured with the following coatings: zinc chromate, cadmium chromate, nickel, oxide impregnated with oil, phosphate impregnated with oil, or without coating.

Other technical requirements — per GOST 1759.0.

The theoretical mass of screws is given in the appendix.

Appendix

For reference

Theoretical mass of 1000 pcs. of steel screws, kg

23.13	35.06	75.55	140.24
40	-	15.87	25.64	39.01	82.23	150.04
45	-	-	28.15	42.67	88.90	160.44
50	-	-	30.66	46.28	95.57	170.84
55	-	-	-	49.91	102.24	181.34
60	-	-	-	53.54	110.84	191.74
65	-	-	-	-	115.54	202.14
70	-	-	-	-	122.24	212.54
75	-	-	-	-	128.94	229.24
80	-	-	-	-	135.54	242.44
90	-	-	_	-	-	254.34
100	-	-	-	-	-	275.24

Note. To determine the mass of screws made of other materials, multiply the mass values given in the table by a factor of: 0.97 for bronze, 1.08 for brass, 0.356 for aluminium alloy.

INFORMATIONAL DATA

Developed and submitted by the Ministry of Machine Tool and Tool Industry of the USSR.

Developers: V.G. Seregin, A.M. Sviridov, N.I. Antonova, N.I. Denisova.

Approved and put into effect by Decree of the USSR State Committee for Standards dated 08.05.84 No. 1589.

Supersedes GOST 1482-75.

4. Referenced regulatory and technical documents

Designation of the referenced regulatory document	Clause number
GOST 1759.0-87	10
GOST 1759.1-82	6, 8
GOST 1759.2-82	7, 8
GOST 1759.4-87	8
GOST 10549-80	3
GOST 12414-94	5
GOST 24670-81	4
GOST 24705-2004	3
GOST 25556-82	8

Edition incorporating Amendment No. 1, approved in July 1987 (IUS 12-87).