GOST 1476-93 Cone-Point Set Screws with Straight Slot, Product Grades A and B. Specifications

Cone-point set screws with straight slot, product grades A and B, are supplied to GOST 1476-93. Specifications

Foreword

1. DEVELOPED by Gosstandart of Russia

SUBMITTED by the Technical Secretariat of the Interstate Council for Standardization, Metrology and Certification

2. ADOPTED by the Interstate Council for Standardization, Metrology and Certification on October 21, 1993

The following voted in favor of adoption:

Name of state	Name of national standardization body
Republic of Belarus, Republic of Kyrgyzstan, Republic of Moldova, Russian Federation, Republic of Tajikistan, Turkmenistan, Ukraine	Gosstandart of Belarus, Kyrgyzstandart, Moldovastandart, Gosstandart of Russia, Tajikstandart, Main State Inspectorate of Turkmenistan, Gosstandart of Ukraine

3. By Resolution No. 160 of the Committee of the Russian Federation for Standardization, Metrology and Certification dated February 2, 1994, interstate standard GOST 1476-93 was put into effect as a national standard of the Russian Federation effective January 1, 1995.

4. SUPERSEDES GOST 1476-84

Contents

1. Sizes

2. Technical requirements

3. Designation

APPENDIX (informative). INFORMATIONAL DATA

INTERSTATE STANDARD
Cone-Point Set Screws with Straight Slot, Product Grades A and B. Specifications	GOST 1476-93 (ISO 7434-83)

Effective date 1995-01-01

This standard applies to cone-point set screws with straight slot, product grades A and B, with nominal thread diameter d from 1.2 to 12 mm.

The requirements of this standard are mandatory.

Additional requirements meeting the needs of the national economy are shown in italics.

1. Dimensions

1.1. Screw dimensions shall conform to those shown in the figure and Table 1.

1. The 120° angle is mandatory for short screws, the length of which is given above the dashed stepped line in Table 1.

2. The 90° angle applies only to the part of the point below the minor diameter of the thread, for screws with nominal lengths l given below the dashed stepped line in Table 1.

For short screws, the lengths of which are given below the dashed stepped line in Table 1, an angle of 120° is mandatory.

Table 1

Nominal thread diameter d					1.0	1.2	1.6	2.0	2.5	3.0	(3.5)	4.0	5.0	6.0	8.0	10.0	12.0
Thread pitch P					0.25	0.25	0.35	0.40	0.45	0.50	0.60	0.70	0.80	1.00	1.25	1.50	1.75
df					Internal thread diameter
		min.			-	-	-	-	-	-	-	-	-	-	-	-
		max.			0.70	0.12	0.16	0.20	0.25	0.30	0.35	0.40	0.50	1.50	2.00	2.50	3.00
n		nom.			0.20	0.20	0.25	0.25	0.40	0.40	0.50	0.60	0.80	1.00	1.20	1.60	2.00
		min.			0.26	0.26	0.31	0.31	0.46	0.46	0.56	0.66	0.86	1.06	1.26	1.66	2.06
		max.			0.40	0.40	0.45	0.45	0.60	0.60	0.70	0.80	1.00	1.20	1.51	1.91	2.31
t		min.			0.40	0.40	0.56	0.64	0.72	0.80	0.96	1.12	1.28	1.60	2.00	2.40	2.80
		max.			0.52	0.52	0.74	0.84	0.95	1.05	1.21	1.42	1.63	2.00	2.50	3.00	3.60
l) nom.	Product grade
	A		B
	min.	max.	min.	max.
2.0	1.80	2.20	7.50	2.50
2.5	2.30	2.70	2.00	3.00
3.0	2.80	3.20	2.50	3.50
4.0	3.76	4.24	3.40	4.60
5.0	4.76	5.24	4.40	5.60
6.0	5.76	6.24	5.40	6.60
8.0	7.71	8.29	7.25	8.75
10.0	9.71	10.29	9.25	10.75				Standard lengths
12.0	11.65	12.35	11.10	12.90
(14.0)	13.65	14.35	13.10	14.90
16.0	15.58	16.42	15.10	16.90
(18.0)	77.55	18.42	17.10	18.90
20.0	19.58	20.42	18.95	21.05
(22.0)	27.55	22.42	20.95	23.05
25.0	24.58	25.42	23.95	26.05
(28.0)	27.55	28.42	27.95	29.05
30.0	29.58	30.42	28.95	31.05
35.0	34.50	35.50	33.75	36.25
40.0	39.50	40.50	38.75	41.25
45.0	44.50	45.50	43.75	46.25
50.0	49.50	50.50	48.75	51.25
55.0	54.40	55.60	53.50	56.50
60.0	59.40	60.60	58.50	61.50
1)Dimensions shown in parentheses are not recommended for use. 2)For d≤M5 a flat on the cone point is not required; the point may be slightly rounded.

1.2. The theoretical mass of the screws is given in the appendix.

2. Technical requirements

Screws shall be manufactured in accordance with the requirements given in Table 2.

Table 2

Material		Steel	Corrosion-resistant steel	Non-ferrous alloys
Thread	Tolerance class	6 g
	Standard	GOST 16093, GOST 24705
Mechanical properties	Property class or material group	14H, 22H 33H, 45H	21-26	31-35
	Standard	GOST 25556	GOST 1759.0
Tolerances	Product grade	A, B
	Standard	GOST 1759.1
Final surface treatment of product		Plain. Requirements for electroplated coatings are per GOST 9.301, GOST 9.303. Screws shall be manufactured with the following coatings: zinc chromated, nickel, oxide impregnated with oil, phosphate impregnated with oil, or without coating. Other types of coatings may be used by agreement between the manufacturer and the customer.
Acceptance		Acceptance rules are per GOST 17769.
Test methods		Dimensions, form and position tolerances of surfaces - per GOST 1759.1
		Surface defects - per GOST 1759.2
		Mechanical properties:
		GOST 25556	GOST 1759.0
Marking and packaging		GOST 1759.0, GOST 18160

3. DESIGNATION

Examples of designations

Set screw with cone point and straight slot, product grade B, thread diameter d = 10 mm, tolerance class 6g, length l = 25 mm, property class 14H, without coating:

Screw M10-6g×25.14H GOST 1476-93

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 1476-93

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

Screw A. M10-6g×25.32. LS 59-1 GOST 1476-93

Appendix

For reference

Table 3 - Mass of screws

Length l, mm	Theoretical mass of 1000 pcs of steel screws, kg ≈, at nominal thread diameter d, mm
	1.0	1.2	1.6	2.0	2.5	3.0	(3.5)	4.0	5.0	6.0	8.0	10.0	12.0
2.0	0.011	0.015	0.026	0.040
2.5	0.014	0.020	0.034	0.053	0.082
3.0	0.017	0.024	0.042	0.065	0.101	0.148
4.0	0.023	0.033	0.058	0.089	0.139	0.202	0.260	0.343
5.0		0.042	0.073	0.114	0.178	0.258	0.342	0.439	0.690
6.0		0.051	0.089	0.138	0.216	0.313	0.418	0.537	0.839	1.174
8.0			0.121	0.188	0.293	0.424	0.569	0.735	1.147	1.609	2.816
10.0				0.237	0.370	0.535	0.720	0.932	1.455	2.052	3.605	5.523
12.0					0.447	0.646	0.871	1.129	1.763	2.496	4.394	6.755	9.570
(14.0)						0.757	1.022	1.326	2.071	2.940	5.183	7.988	11.345
16.0						0.868	1.173	1.523	2.380	3.383	5.971	9.220	13.120
(18.0)							1.324	1.721	2.688	3.827	6.760	10.453	14.895
20.0							1.475	1.918	2.996	4.271	7.549	11.685	16.669
(22.0)									3.304	4.714	8.338	12.918	18.444
25.0									3.766	5.380	9.521	14.766	21.106
(28.0)										6.046	10.704	16.615	23.768
30.0										6.489	11.493	17.847	25.543
35.0											13.465	20.929	29.980
40.0											15.436	24.010	34.417
45.0												27.091	38.853
50.0												30.172	43.290
55.0													47.727
60.0													52.164
Note - To determine the mass of screws made of other materials, the mass values given in the table shall be multiplied by the coefficient: 0.356 for aluminium alloy; 0.970 for bronze; 1.08 for brass.

INFORMATIONAL DATA

REFERENCE REGULATORY AND TECHNICAL DOCUMENTS

Designation of the referenced regulatory document	Section number
GOST 9.301-86	2
GOST 9.303-84	2
GOST 1759.0-87	2
GOST 1759.1-82	2
GOST 1759.2-82	2
GOST 16093-2004	2
GOST 17769-83	2
GOST 18160-72	2
GOST 24705-2004	2
GOST 25556-82	2

Corresponds to DIN 553.