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GOST 3033 55 hinged bolt. Folding bolts. Design and dimensions

GOST 3033-79
Group G31

INTERSTATE STANDARD

OPENING BOLTS

Design and dimensions

Eye bolts. Design and dimensions

ISS 21.060.10
OKP 12 8000

Date of introduction 1981-01-01

INFORMATION DATA

1. APPROVED AND ENTERED INTO EFFECT by Resolution of the State Committee on Standards dated 09/05/79 N 3342

2. INSTEAD GOST 3033-73

3. REFERENCE REGULATIVE AND TECHNICAL DOCUMENTS

Item number, application

GOST 1066-90

Annex 1

GOST 1759.0-87

GOST 1759.1-82

GOST 1759.2-82

GOST 7505-89

GOST 12414-94

GOST 17305-91

Annex 1

GOST 19256-73

GOST 24643-81

GOST 24705-2004

GOST 27148-86

4. The validity period was lifted according to Protocol No. 5-94 of the Interstate Council for Standardization, Metrology and Certification (IUS 11-12-94)

5. EDITION with Amendment No. 1, approved in July 1987 (IUS 11-87)

1. This standard applies to hinged bolts with threads with a diameter of 5 to 36 mm.
The standard does not apply to hinged bolts of machine tools.

2. Hinged bolts must be manufactured in the following versions:

1 - round head bolts;

2 - bolts with a round head and a hole for a cotter pin;

3 - bolts with fork.
Bolts can be manufactured in accuracy classes B and C.

3. The design and dimensions of the hinged bolts of versions 1 and 2 must correspond to those indicated in the drawing and in table 1, and of version 3 - in the drawing and in table 2.

_______________
*Size for reference.

Table 1

Dimensions in mm

Nominal thread diameter

Weight 1000 pcs., kg,
version 1

table 2

Dimensions in mm

Nominal thread diameter

Weight
1000 pcs., kg

Notes to tables 1 and 2.

1. (Deleted, Amendment No. 1).

2. Weights are for steel bolts. To determine the mass of brass bolts, the mass values ​​indicated in Tables 1 and 2 should be multiplied by a factor of 1.08; from bronze - by 0.97.

Example symbol flap bolt accuracy class B, version 1, thread diameter = 6 mm, with a tolerance range of 6g, length = 32 mm, strength class 3.6, made of mild steel, with a zinc coating 6 microns thick, chromated:

Bolt B.M6-6gх32.36.C.016 GOST 3033-79

The same, accuracy class C, version 2, thread diameter = 10 mm, with tolerance range 8g, length = 60 mm, from material group 32, uncoated:

Bolt S.2M10-8gx60.32 GOST 3033-79

4. Limit deviations hole diameter in head:
for bolts of accuracy class B - H12;
for bolts of accuracy class C - H14.

2-4. (Changed edition, Amendment No. 1).

5. (Deleted, Amendment No. 1).

6. Maximum deviations of the head width - d11.

7. Maximum size deviations - H14.

8. Maximum deviations of the slot width - H12.

9. (Deleted, Amendment No. 1).

10. Maximum deviations of dimensions obtained by stamping - according to the second class of GOST 7505.

11. (Deleted, Amendment No. 1).

12. When making threads using the rolling method, the diameter of the rod should be made according to GOST 19256.

13. For bolts of accuracy class C the following is allowed:
the roughness of the surfaces forming a size of 100 microns, and the surfaces of the hole with a diameter of 20 microns;
maximum deviations of the head width are according to the second class of GOST 7505.

14. Thread - according to GOST 24705.

15. The dimensions of the rungs are in accordance with GOST 27148, the end with a chamfer is in accordance with GOST 12414.

16. The rest technical requirements- according to GOST 1759.0.

13-16. (Changed edition, Amendment No. 1).

16a. The tolerance for the intersection of the axis of the head and the axis of the hole in the head, the tolerance for the perpendicularity of the axis of the hole in the head to the axis of the rod at a length equal to 0.5 or 0.5 - according to GOST 24643 for bolts:
accuracy class B - according to the 13th degree of accuracy;
accuracy class C - according to the 14th degree of accuracy.

16b. Dimensional tolerances not established by this standard, tolerance of head and rod alignment and control methods in accordance with GOST 1759.1.

16th century Acceptable defects bolt surfaces and control methods - according to GOST 1759.2.
16a, 16b, 16c. (Introduced additionally, Amendment No. 1).

17. Methods for locking the nut are given in Appendix 1.
Examples of the use of hinged bolts are given in Appendix 2.

NUT LOCKING METHODS

1. Locking the nut of the jack bolt version 2 must be done by installing a pin. The pin installed in the bolt hole must be riveted on both sides.

2. By agreement between the consumer and the manufacturer, it is allowed to lock the nut by punching the threads of the hinged bolt or by mechanically bringing together the last two turns of the thread at two opposite points on the sides, as well as by punching from the end depending on the diameter of the thread.

3. Material for making pins: steel wire grade 10 or 15 according to GOST 17305, brass wire grade L63 according to GOST 1066 or VT1-00 according technical specifications, approved in accordance with the established procedure.

4. The dimensions of the pins for locking the nut of the swing bolt version 2 must correspond to those indicated in the drawing and in the table.

Dimensions in mm

Nominal Thread Diameter of Hinge Bolt

Pin diameter

Pin length
js 16

Weight 1000 pcs. pins, kg

APPENDIX 2. (Changed edition, Amendment No. 1).

ROSSTANDART FA according to technical regulation and metrology
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INTERSTATE STANDARD

OPENING BOLTS

DESIGN AND DIMENSIONS

Official publication

INTERSTATE STANDARD

OPENING BOLTS

Design and dimensions GOST

Eye bolts. Design and dimensions

MKS 21.060.10 OKP 12 8000

Date of introduction 01/01/81

1. This standard applies to hinged bolts with threads with a diameter of 5 to 36 mm.

The standard does not apply to hinged bolts of machine tools.

2. Hinged bolts must be manufactured in the following versions:

1 - round head bolts;

2 - bolts with a round head and a hole for a cotter pin;

3 - bolts with fork.

Bolts can be manufactured in accuracy classes B and C.

3. The design and dimensions of the hinged bolts of versions 1 and 2 must correspond to those indicated in the drawing and in the table. 1, and version 3 - in the drawing and in the table. 2.

Version 1

Version 2

Version 3

*Size for reference

Official publication ★

Reproduction is prohibited

Table 1

1,6

1000 pcs., kg =, version 1

6.000

8.000

10.00 8,000

10.00 11,00 12,00

21.00 22,00

66.00

Continuation of the table. 1

1000 pcs., kg =, version 1

Continuation of the table. 1

loo"

1000 pcs., kg =, version 1

table 2

Nominal thread diameter d

Weight 1000 pcs., kg =

Notes to the table. 1 and 2.

1. (Deleted, Amendment No. 1).

2. Weights are for steel bolts. To determine the mass of brass bolts, the mass values ​​indicated in table. 1 and 2 should be multiplied by a factor of 1.08; from bronze - by 0.97.

3. Threaded bolts d = 14 mm are not recommended.

An example of a symbol for a hinged bolt of accuracy class B, version 1, thread diameter d = 6 mm, with a tolerance range of 6 g, length L = 32 mm, strength class 3.6, made of mild steel, with a zinc coating 6 microns thick, chromated:

Bolt V.M6-6 g-32.36.C016 GOST 3033-79

The same, accuracy class C, version 2, thread diameter d = 10 mm, with a tolerance range of 8 g, length L = 60 mm, from material group 32, uncoated:

Bolt S.2M10-8 g-60.32. GOST 3033-79

4. Maximum deviations of the hole diameter in the head d t: for bolts of accuracy class B-H12;

for bolts of accuracy class C-H14.

2-4. (Changed edition, Amendment No. 1).
5. (Deleted, Amendment No. 1).

6. Maximum deviations of the width of the head b-dll.

7. Limit deviations of size l 2 -H14.

8. Maximum deviations of slot width L 2 -H12.

9. (Deleted, Amendment No. 1).

10. Maximum deviations of dimensions obtained by stamping - according to the second class of GOST 7505.

11. (Deleted, Amendment No. 1).

12. When making threads using the rolling method, the diameter of the rod should be made according to GOST 19256.

13. For bolts of accuracy class C the following is allowed:

roughness of surfaces forming size b-Ra<100 мкм, а поверхности отверстия диаметром d-Ra< 20 мкм;

maximum deviations of the head width b- according to the second class of GOST 7505.

14. Thread - according to GOST 24705.

15. The dimensions of the rungs are in accordance with GOST 27148, the end with a chamfer is in accordance with GOST 12414.

16. Other technical requirements are in accordance with GOST 1759.0.

13-16. (Changed edition, Amendment No. 1).

16a. Tolerance for the intersection of the axis of the head and the axis of the hole in the head, the tolerance for perpendicularity to the axis of the hole in the head of the rod braid at a length equal to 0.5 b or 0.5 b v - according to GOST 24643 for bolts:

accuracy class B - according to the 13th degree of accuracy; accuracy class C - according to the 14th degree of accuracy.

166. Dimensional tolerances not established by this standard, tolerance of head and rod coaxiality and control methods in accordance with GOST 1759.1.

16th century Permissible defects in the surface of bolts and control methods - according to GOST 1759.2.

16a, 166, 16c. (Introduced additionally, Amendment No. 1).

17. Methods for locking the nut are given in Appendix 1.

Examples of the use of hinged bolts are given in Appendix 2.

METHODS FOR STOPPING HANDS

1. Locking the nut of the jack bolt version 2 must be done by installing a pin. The pin installed in the bolt hole must be riveted on both sides.

2. By agreement between the consumer and the manufacturer, it is allowed to lock the nut by punching the threads of the hinged bolt or by mechanically bringing together the last two turns of the thread at two opposite points on the sides, as well as by punching from the end depending on the diameter of the thread.

3. Material for the manufacture of pins: steel wire grade 10 or 15 according to GOST 17305, brass wire grade L63 according to GOST 1066 or VT1-00 according to technical specifications approved in the prescribed manner.

4. The dimensions of the pins for locking the nut of the swing bolt version 2 must correspond to those indicated in the drawing and in the table.

Dimensions in mm

Nominal thread diameter of eyebolt d

Pin diameter d 2

Pin diameter L js 16

Weight 1000 pcs. pins, kg

EXAMPLES OF APPLICATION OF FLASH BOLTS


APPENDIX 2. (Changed edition, Amendment No. 1).

INFORMATION DATA

1. APPROVED AND ENTERED INTO EFFECT by Resolution of the State Committee on Standards dated 09/05/79 No. 3342

2. INSTEAD GOST 3033-73

3. REFERENCE REGULATIVE AND TECHNICAL DOCUMENTS

4. The validity period was lifted according to Protocol No. 5-94 of the Interstate Council for Standardization, Metrology and Certification (NUS 11-12-94)

5. EDITION with Change No. 1, approved in July 1987 (IUS 11-87)


In the state standard GOST 3033-79 it is indicated that its effect extends to hinged bolts with an eye (loop) and partial inch or metric threads. This type of fasteners is used in various types of industry and construction.

Technical characteristics of bolts according to GOST 3033-79

The eyebolt has a cylindrical shaft with partial/full threads. It can be metric or inch. The head of the fastener is spherical, in the form of an eye.
Other features of fasteners GOST 3033-79:
  • accuracy class B and C (normal and rough);
  • nominal thread diameter 5-36 mm;
  • rod length with eye 25-300 mm;
  • thread tolerance field - 6g.
Folding bolts are produced in three versions. They differ in the shape of the head. In the first version it has a round shape, in the second - round with a special locking hole for a cotter pin, in the third - with a fork. The diameter of the eye inside and outside is related to the length of the bolt and thread, as well as the width of the ring. As the size of the rod increases, the diameter of the hole expands in direct proportion.
made from the following materials: steel with different strength classes (4.8, 5.8, 8.8, 10.9, 12.9), stainless steel, galvanized steel, brass. Applying a thermal diffusion or other protective coating increases the service life of fasteners and protects them from corrosion.



Areas of application for hinged eye bolts in accordance with GOST 3033-79

Folding eye fasteners are used in a wide variety of applications. They are indispensable in construction, mechanical engineering, and machine tool production. With their help, units and spare parts are secured in production machines. Bolt with folding eye according to GOST 3033-79 also used for releasing or clamping parts and arranging rigging devices. It is used to reliably fasten components and parts in the mechanical engineering industry.

Fasteners according to GOST 3033-79 Suitable for mounting various elements in ceilings and walls. To do this, you need to additionally use anchors. Hinged bolts are the ideal solution for attaching building systems to load-bearing walls or temporary partitions.

The main purpose of bolts manufactured according to the GOST standard 3033-79 , - creation of easily removable connections. The eyelet greatly facilitates the process of assembling and disassembling structures. If during work, according to the technical process, parts often change position relative to each other, hinged bolts are the ideal solution for fastening. Such fasteners are used for screwing together elements of hydraulic filters, industrial autoclaves, and conductors. With their help, elements of reciprocating mechanisms and other moving parts are fixed.
Hinged bolts have some operating nuances. Since they are often used to connect moving elements or are subject to frequent twisting and unscrewing, they must withstand strong cyclic loads. Applying a protective coating and following operating instructions will help prevent rapid wear of fasteners. In case of critical wear, it is important to replace the element so that one faulty part does not lead to more serious problems.

The Stolichny Fastener company specializes in the manufacture of hinged bolts of various sizes with normal or rough accuracy classes (B and C). All products are manufactured on modern equipment with strict adherence to standards and step-by-step quality control.

 from the following materials:
Carbon, alloy steel grades
Strength class steel grade
3.6 10, 10kp
4.6 20
4.8 10, 10kp
5.6 30, 35
5.8 10, 10kp, 20, 20kp
6.6 35, 45, 40G
6.8 20, 20kp
8.8; 10.9; 12.9 35, 35Х, 38ХА, 45Г, 40Г2, 40Х, 30ХГСА, 35ХГСА, 16ХСН, 20Г2Р
Corrosion-resistant, heat-resistant, heat-resistant and heat-resistant steels
Material group steel grade
21 12Х18Н10Т, 12Х18Н9Т, 10Х17Н13М2Т, 10Х17Н13М3Т, 06ХН28МДТ
22 12Х13, 08Х21Н6М2Т
23 20Х13, 14Х17Н2
24 10Х11Н23Т3МР
25 13Х11Н2В2МФ, 25Х1МФ, 25Х2М1Ф, 20Х1М1Ф1ТР
26 07Х16Н6
Non-ferrous alloys
Material group Alloy grade
31 AMg5P, AMg5
32 Brass L63, Brass LS59-1
33 Brass L63 antimagnetic, Brass LS59-1 antimagnetic
34 Bronze Br.AMts9-2
35 D1, D1P, D16, D16P
All products supplied by GOSTMETIZ can be covered with the following types of protective galvanic coatings:
Type of coverage Coverage designation
digital according to GOST 9.306
Zinc, chromated 01 C. hr
Cadmium, chromated 02 Kd. xp
Multilayer: copper-nickel 03 M. N
Multilayer: copper-nickel-chrome 04 M. N. X. b
Oxidized, oil-impregnated 05 Chem. Oks. prm
Phosphate, oil impregnated 06 Chem. Phos. prm
Tin 07 ABOUT
Copper 08 M
Zinc 09 C
Oxidic, filled with chromates 10 An. Oks. NHR
Oxidic from acidic solutions 11 Chem. Pass
Silver 12 Wed
Nickel 13 N
Hinged bolts must be manufactured in the following versions:
  • 2 - bolts with a round head and a hole for a cotter pin;
  • 3 - bolts with fork.

Bolts can be manufactured with normal and rough precision.
The design and dimensions of the hinged bolts of versions 1 and 2 must correspond to those indicated in the table. 1, and version 3 - in table. 2.

Table 1
Dimensions, mi
Nominal thread diameter d L l 0 D d 1 d 2 b l R f TO m
25 16 5,000
32 6,000
36 20 7,000
40 25 10 4 6 4 0,25 7,000
5 45 8,000
50 30 9,000
55 9,500
60 10,00
32 16 1,6 2,5 8,000
36 20 9,000
40 25 10,00
45 11,00
6 50 30 12 5 8 0,08 12,00
55 0,3 13,00
60 14,00
65 35 15,00
70 5 0,3 16,00
36 20 18,00
40 25 19,00
45 30 21,00
50 22,00
8 55 14 6 10 24,00
60 35 2 3,5 26,00
65 28,00
70 40 29,00
75 45 31,00
80 33,00
10 40 25 18 8 12 6 0,4 0,12 32,00
45 30 35,00
50 37,00
55 35 40,00
60 40 43,00
65 46,00
10 70 18 8 12 6 0,3 49,00
75 45 51,00
80 54,00
85 57,00
90 55 60,00
95 63.00
100 65 66,00
45 30 2 3,5 0,4 47,00
50 35 0,12 50,00
55 54,00
60 40 59,00
65 63,00
70 45 67,00
12 75 20 10 14 8 0,4 71,00
80 50 75,00
85 80,00
90 60 81,00
95 88,00
100 65 92,00
110 75 101,00
125 117,00
(14) 50 30 24 12 3 16 4,5 10 0,5 83,00
60 40 93,00

Continuation of Table 1
Dimensions, mi
Nominal thread diameter d L l 0 D d 1 d 2 b l R f TO m Weight 1000 pcs., kg≈, version 1
65 45 99,00
70 104,00
75 50 110,00
80 116,00
85 122,00
(14) 90 65 24 12 16 0,12 127,00
95 133,00
100 138,00
110 75 150,00
125 167,00
140 90 170,00
60 40 3 4,5 10 0,5 0,4 117,00
70 50 131,00
75 137,00
80 55 145,00
83 153,00
90 65 160,00
16 95 28 14 18 0,27 167,00
100 175,00
110 75 192,00
120 206,00
125 212,00
110 90 235,00
160 110 268,00
80 55 230,00
20 90 65 34 18 4 22 5,5 12 0,6 0,5 250,00
100 75 276,00
110 80 300,00
125 80 330,00
140 95 370,00
20 160 34 18 22 12 0,6 413,00
180 110 460,00
200 510,00
100 70 430,00
110 80 4 459,00
125 510,00
140 95 565,00
24 160 42 20 26 16 0,7 631,00
180 110 5,5 0,27 0,5 687,00
200 768,00
220 840,00
250 125 940,00
125 90 835,00
140 95 926,00
160 1026,00
30 180 110 52 25 34 20 0,8 1140,00
200 1250,00
220 1365,00
250 125 6 1530,0
280 1690,0
140 95 1466,0
160 100 1612,0
180 1768,0
38 200 125 6-1 30 40 7,0 22 1,0 0,32 0,6 1923,0
220 2030,0
250 2300,0
280 140 2500,0
320 2800,0

table 2
Dimensions, mm
Nominal thread diameter d L l 0 l 1 l 2 d 1 d 2 B b 1 b 2 b 3 f K m Masc a 1000 pcs., kg ≈
60 35 48,0
10 65 40 16 10 8 12 16 16 8 3,8 50,0
70 45 53,0
65 35 0,4 80,0
12 70 40 18 12 10 15 20 20 10 1,8 84,0
75 50 88,0
80 50 0,12 91,0
65 30 115,0
70 35 119,0
75 40 123,0
80 45 14 12 18 24 21 12 0,4 127,0
(14) 85 50 22 5,8 131,0
90 55 135,0
95 60 0,5 139,0
100 70 143,0
80 40 202,0
85 45 209,0
16 90 50 26 16 14 20 28 28 14 6,8 216,0
95 55 222,0
100 60 229,0
110 70 243,0
BY 60 0,27 446,0
20 125 70 34 20 18 24 36 36 18 8,8 3.6 477,0
140 80 508,0
140 70 0,5 811,0
24 160 80 42 24 20 28 10 16 22 11,7 0,7 873,0
180 945,0
200 90 1016,0

Notes to the table 1 and 2:

  • 1. f - deviation from the alignment of the head and the rod; K - deviation from perpendicularity to the axis of the hole in the head and the axis of the rod over a length equal to 0.5 b or 0.5 b 1; m is the deviation from the intersection of the axes of the head and the hole in the head over a length equal to d.
  • 2. Weights are for steel bolts. To determine the mass of brass bolts, the mass values ​​indicated in table. 1 and 2 should be multiplied by a factor of 1.08; from bronze - by 0.97.
  • 3. Threaded bolts d = 14 mm are not recommended.
    • Example of a symbol for a hinged bolt version 1, thread diameter d = 6 mm, with tolerance range 8g, length L = 32 mm, strength class 3.6, made of mild steel, with coating 01 6 µm thick: Bolt М6Х32.36.С.016 GOST 3033-79
    The same, rough accuracy, version 2, thread diameter d = 10 mm, with a tolerance range of 8g, length L = 60 mm, from material group 32, uncoated:
    Bolt G2M10X 60.32 GOST 3033-79
  • 4. Limit deviations of the diameter of the hole in the head d 1:
    • for bolts of normal accuracy - H12;
    for rough precision bolts - H14.
  • 5. Maximum deviations of the diameter of the hole for the cotter pin d 2 - H14.
  • 6. Maximum deviations for head width b-d11.
  • 7. Limit deviations of size l 2 -H14.
  • 8. Maximum deviations of slot width b 2 -H12.
  • 9. Maximum deviations of thread length l 0 - plus two thread pitches.
  • 10. Maximum deviations of dimensions obtained by stamping - according to the second class of GOST 7505-74.
  • 11. Unspecified longitudinal deviations of dimensions: holes H16, shafts h16, others ± IT16/2.
  • 12. When making threads using the rolling method, the diameter of the rod should be made according to GOST 19256-73.
  • 13. For rough precision bolts the following is allowed: deviation from the alignment of the head and the rod is no more than 2f;
    deviation from the intersection of the axes of the head and the hole in the head is no more than 1.5 mm;
    deviation from perpendicularity of the axis of the hole in the head to the axis of the rod over a length equal to 0.5b or 0.5b1 not more than 2K;
    cuts (chips) of metal on the edges of the head with a depth of no more than 0.5 mm.
    Roughness of surfaces forming size b - Ra
  • 14. Thread - according to GOST 24705-81, with a tolerance range of 8g - according to GOST 16093-81.
  • 15. Dimensions of runs and chamfers for threads - according to GOST 10549-80.
  • 16. Mechanical properties, grades of materials and technical requirements for bolts of normal and rough accuracy - according to GOST 1759-70.