GOST 7802-81
Group G31
INTERSTATE STANDARD
OVERHEAD BOLTS
AND SQUARE HEAD CLASS C
Design and dimensions
Increased cup head square shoulder bolts, product grade C.
Construction and dimensions
ISS 21.060.10
OKP 12 8200
Introduction date 1982-01-01
Decree State Committee USSR according to the standards of January 15, 1981 N 2, the date of introduction is set on 01.01.82
The validity period was removed according to protocol N 7-95 of the Interstate Council for Standardization, Metrology and Certification (IUS 11-95)
INSTEAD OF GOST 7802-72
EDITION with Changes N 1, 2, approved in June 1986, April 1987 (IUS 9-86, 8-87).
1. This standard applies to bolts with an enlarged semi-circular head and a square neck of accuracy class C with a nominal thread diameter from 5 to 24 mm.
2. The design and dimensions of the bolts must correspond to those indicated on the drawing and in tables 1 and 2.
Drawing. Bolt design and dimensions
Table 1
Nominal thread diameter | |||||||||
Head diameter | |||||||||
Head height | |||||||||
Sphere Radius | |||||||||
Carriage Side Size | |||||||||
Head height, not less than | |||||||||
Thread length | |||||||||
Example symbol bolt with a thread diameter of mm, with a large thread pitch with a tolerance of 8g, length mm, strength class 3.6, zinc coated, 6 µm thick, applied by cathodic recovery, chromated:
Bolt M12x60.36.016 GOST 7802-81
table 2
Notes:
1. Bolts are made in lengths enclosed between bold lines.
2. Bolts in the area from the upper bold line to the dotted line are made with threads along the entire length of the rod.
3. Thread - according to GOST 24705-2004, thread pitch - large. Runaway and undercut thread - according to GOST 27148-86. Bolt ends - according to GOST 12414-94.
2, 3. (Changed edition, Rev. N 1, 2).
3a. The radius under the head - according to GOST 24670-81.
3b. Tolerances and methods for controlling dimensions and deviations in the shape and location of surfaces - according to GOST 1759.1-82.
By agreement between the manufacturer and the consumer, it is allowed to manufacture bolts with a thread tolerance field of 6e.
3c. Surface defects and control methods - according to GOST 1759.2-82.
3a-3c. (Introduced additionally, Rev. N 1).
4. The diameter of the smooth part of the rod is approximately equal to the average thread diameter or nominal thread diameter.
5. Technical requirements- according to GOST 1759.0-87.
The mechanical properties of the bolts must comply with strength classes 3.6, 4.6, 4.8, 5.6, 5.8, 8.8.
6. Theoretical mass bolts is specified in the reference appendix.
APPENDIX (reference)
APPENDIX
Reference
Bolt length | Theoretical weight 1000 pcs. bolts, kg, at nominal diameter thread, mm |
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/ bolt GOST 7802-81 with a semicircular head and a square headrest
Bolt with a semicircular head and a square headrest GOST 7802
Proper operation of the road economy, high-quality installation of road barriers is an important element of safe human life. Every year everything more people join the ranks of car owners, which means, regrettably, they become an object heightened danger for pedestrians.
The main element of protection of people, buildings or other objects along the roads is a road barrier. Its importance is especially important in crowded places: at public transport stops, at interchanges, along crowded streets and avenues.
A roadside fence is a long-developed and proven element of a roadside area. Their design and installation are regulated by a number of standards, in particular GOST 7802-81, GOST 26804-86, STO 521000-008-47641462-2010, TU 5216-067-36910961-2002, GOST R 52289-2004, GOST R 52607-2006, EN 1317.
Bolt GOST 7802-81 M16x65 road with an enlarged semicircular head and a square headrest - used for fastening wooden and steel structures in construction and furniture industry. These bolts are used for road barriers.
Size range: bolt M6, M8, M10, M12, M16, M20, M24, M27, M30, M36, M42, M48, M52 and others. Bolt GOST 7802-81 analogue of DIN 603.
Due to the relatively simple design and high reliability, barrier road barriers have become widespread. Their main components are beams, racks and fastener kits. One of the important parts that affects the quality, speed of installation, and the duration of the operation of fences is road fasteners, which will be discussed in more detail below. You can order and buy road fasteners from almost every wholesale supplier of hardware.
The composition of road fasteners for the installation of barrier fences includes a bolt with an enlarged semicircular head and a square neck, a hex nut and a slanting washer (Grover). The list of materials, including road fasteners, for barrier fencing is regulated by the relevant normative documents. For example, by technological map institute "VPTITRANSSTROY", for 100 m of the road barrier there is: a road bolt (diameter x length) GOST 7802 (with a hexagonal nut GOST 5915 and an oblique washer) 16x50 - 50 pcs, 18x60 - 200 pcs, 16x100 - 25 pcs.
Bolts with an enlarged pan head and square neck (more commonly referred to as "road bolts") are manufactured in accordance with international standard GOST 7802, German DIN 603. According to GOST, bolts are produced with diameters from M5 to M24, lengths from 12 to 260 mm. Accuracy class C. Strength classes in the range 3.6-8.8. The square head secures the bolt in mounting hole and prevents turning while tightening the nut.
| Weight 1000 pcs, kg | ||||||||
|---|---|---|---|---|---|---|---|---|
| L,mm/d,mm | 5 | 6 | 8 | 10 | 12 | 16 | 20 | 24 |
| 12 | 2,699 | 4,612 | ||||||
| 14 | 2,936 | 4,950 | 10,10 | |||||
| 16 | 3,172 | 5,288 | 10,71 | 19,39 | ||||
| 20 | 3,644 | 5,964 | 11,94 | 21,34 | 34,76 | |||
| 25 | 4,235 | 6,809 | 13,48 | 23,79 | 38,30 | 75,60 | 133,4 | |
| 30 | 4,825 | 7,655 | 15,02 | 26,22 | 41,84 | 82,13 | 143,6 | |
| 35 | 5,416 | 8,500 | 16,56 | 28,67 | 45,38 | 88,66 | 153,8 | |
| 40 | 6,006 | 9,345 | 18,10 | 31,11 | 48,92 | 95,18 | 164,1 | |
| 45 | 6,596 | 10,196 | 19,64 | 33,55 | 52,46 | 101,71 | 174,3 | |
| 50 | 7,187 | 11,036 | 21,18 | 35,99 | 56,00 | 108,24 | 184,5 | |
| 55 | 7,746 | 11,881 | 22,72 | 38,44 | 59,54 | 114,77 | 194,8 | |
| 60 | 8,336 | 12,726 | 24,26 | 40,88 | 63,08 | 121,23 | 205,0 | |
| 65 | 8,926 | 13,574 | 25,80 | 43,32 | 66,62 | 127,82 | 215,2 | |
| 70 | 9,516 | 14,417 | 27,34 | 45,76 | 70,17 | 134,35 | 225,5 | |
| 75 | 15,262 | 28,88 | 48,20 | 73,71 | 140,87 | 235,7 | 366,4 | |
| 80 | 16,107 | 30,42 | 50,65 | 77,25 | 147,40 | 245,9 | 381,2 | |
| 90 | 17,798 | 33,50 | 55,53 | 84,33 | 160,45 | 266,4 | 410,6 | |
| 100 | 19,488 | 36,57 | 60,41 | 91,41 | 173,51 | 286,9 | 440,1 | |
| 110 | 39,65 | 65,30 | 98,49 | 186,56 | 307,4 | 469,6 | ||
| 120 | 42,73 | 70,18 | 105,57 | 199,62 | 327,8 | 499,0 | ||
| 130 | 45,81 | 75,10 | 112,65 | 212,67 | 348,3 | 528,5 | ||
| 140 | 48,89 | 79,95 | 119,73 | 225,72 | 368,8 | 558,0 | ||
| 150 | 51,97 | 84,84 | 126,81 | 238,78 | 389,2 | 587,4 | ||
| 160 | 55,05 | 89,72 | 133,89 | 251,83 | 409,7 | 616,9 | ||
| 170 | 58,13 | 94,61 | 140,97 | 264,87 | 430,2 | 646,4 | ||
| 180 | 61,21 | 99,49 | 148,05 | 277,94 | 450,6 | 675,8 | ||
| 190 | 64,29 | 104,37 | 155,13 | 290,99 | 471,1 | 705,3 | ||
| 200 | 67,37 | 109,26 | 162,22 | 304,04 | 491,6 | 734,8 | ||
| 220 | 73,53 | 119,02 | 176,38 | 330,15 | 532,6 | 793,8 | ||
| 240 | 128,79 | 190,54 | 366,26 | 573,6 | 852,8 | |||
| 260 | 138,56 | 204,70 | 382,37 | 614,6 | 911,8 | |||
Should have a thread in accordance with GOST 24705-81, - large. Thread run and undercut according to GOST 27148-88, bolt ends - according to GOST 12414-66, radius under the head - according to GOST 24670-81.
By agreement between the manufacturer and the consumer, it is allowed to manufacture furniture bolts with a thread tolerance field 6e.
Diameter of the smooth part of the rod d1 approximately equal to the mean thread diameter or nominal thread diameter.
Technical requirements for bolts according to GOST 1759.0-87. The mechanical properties of bolts GOST 7802-81 must comply with strength classes 3.6, 4.6, 4.8, 5.6, 5.8, 8.8.
Symbol example:
Road bolt with a thread diameter d = 12 mm, with a coarse thread pitch with a tolerance of 8g, length l = 60 mm, strength class 3.6, with a zinc coating 6 µm thick, applied by cathodic recovery, chromated:
Bolt M 12 x 60.36.016 GOST 7802-81
Road, furniture bolt GOST 7802 with a thread diameter d = 16 mm, with a large thread pitch with a tolerance field of 8g, length l = 45 mm, strength class 3.6, with a zinc coating 6 microns thick, applied by cathodic recovery, chromated:
Bolt M 16 x 45.36.016 GOST 7802-81
Furniture bolt 7802 with a thread diameter d = 16 mm, with a coarse thread pitch with a tolerance of 8g, length l = 35 mm, strength class 5.8, zinc coated 9 µm thick, applied by cathodic recovery, chromated:
Bolt M 16 x 35.58.019 GOST 7802-81
Hexagon nuts GOST 5915 are also used as road fasteners and are the mating part of the GOST 7802 bolt. They are produced with accuracy class C in the range of diameters 1.6-48 mm.
INTERSTATE STANDARD
BOLTS WITH INCREASED
HEAD HEAD
AND SQUARE HEAD
ACCURACY CLASS C
CONSTRUCTION AND DIMENSIONS
INTERSTATE STANDARD
|
OVERHEAD BOLTS Design and dimensions Increased cup head square shoulder bolts, product grade C. |
GOST |
Edition with Amendments No. 1, 2, approved in June 1986, April 1987 (IUS 9-86, 8-87).
By the Decree of the State Committee of the USSR on Standards dated January 15, 1981 No. 2, the introduction date was set
01.01.82
The validity period was lifted according to protocol No. 7-95 of the Interstate Council for Standardization, Metrology and Certification (IUS 11-95)
1. This standard applies to bolts with an enlarged semi-circular head and a square neck of accuracy class C with a nominal thread diameter from 5 to 24 mm.
2. The design and dimensions of the bolts must correspond to those indicated in the drawing and in table. 1 and 2.
Table 1
|
Nominal thread diameter d |
|||||||||
|
Head diameter D |
|||||||||
|
Head height k |
|||||||||
|
Sphere Radius R » |
|||||||||
|
Carriage Side Size V |
|||||||||
|
headboard height f, not less |
|||||||||
|
Thread length b |
For l£120 |
||||||||
|
For l > 120 |
|||||||||
An example of a symbol for a bolt with a thread diameter d= 12 mm, coarse pitch with 8g tolerance, length l= 60 mm, strength class 3.6, 6 µm zinc plated with cathodic reduction, chromated:
table 2
Notes:
1. Bolts are made with lengths enclosed between bold lines.
2. Bolts in the area from the upper bold line to the dotted line are made with threads along the entire length of the rod
2, 3. (Changed edition, Rev. No. 1, 2).
3b. Tolerances and methods for controlling dimensions and deviations in the shape and location of surfaces - according to GOST 1759.1-82.
By agreement between the manufacturer and the consumer, it is allowed to manufacture bolts with a thread tolerance field of 6e.
3c. Surface defects and control methods - according to GOST 1759.2-82.
3a - 3c. (Introduced additionally, Amendment No. 1).
4. Diameter of the smooth part of the rod d 1 is approximately equal to the average thread diameter or nominal thread diameter.
5. Technical requirements - according to GOST 1759.0-87.
The mechanical properties of the bolts must comply with strength classes 3.6, 4.6, 4.8, 5.6, 5.8, 8.8.
6. The theoretical weight of the bolts is given in the appendix.
APPENDIX
Reference
|
Bolt length l, mm |
Theoretical weight 1000 pcs. bolts, kg, with nominal thread diameter d, mm |
|||||||
GOST 7802-81
Group G31
INTERSTATE STANDARD
OVERHEAD BOLTS
AND SQUARE HEAD CLASS C
Design and dimensions
Increased cup head square shoulder bolts, product grade C.
Construction and dimensions
ISS 21.060.10
OKP 12 8200
Introduction date 1982-01-01
By the Decree of the State Committee of the USSR for Standards dated January 15, 1981 N 2, the date of introduction was set to 01.01.82
The validity period was removed according to protocol N 7-95 of the Interstate Council for Standardization, Metrology and Certification (IUS 11-95)
INSTEAD OF GOST 7802-72
EDITION with Changes N 1, 2, approved in June 1986, April 1987 (IUS 9-86, 8-87).
1. This standard applies to bolts with an enlarged semi-circular head and a square neck of accuracy class C with a nominal thread diameter from 5 to 24 mm.
2. The design and dimensions of the bolts must correspond to those indicated on the drawing and in tables 1 and 2.
Drawing. Bolt design and dimensions
Table 1
Nominal thread diameter | |||||||||
Head diameter | |||||||||
Head height | |||||||||
Sphere Radius | |||||||||
Carriage Side Size | |||||||||
Head height, not less than | |||||||||
Thread length | |||||||||
An example of a symbol for a bolt with a thread diameter of mm, with a coarse thread pitch with a tolerance of 8g, a length of mm, a strength class of 3.6, with a zinc coating, 6 µm thick, applied by the cathodic recovery method, chromated:
Bolt M12x60.36.016 GOST 7802-81
table 2
Notes:
1. Bolts are made in lengths enclosed between bold lines.
2. Bolts in the area from the upper bold line to the dotted line are made with threads along the entire length of the rod.
3. Thread - according to GOST 24705-2004, thread pitch - large. Runaway and undercut thread - according to GOST 27148-86. Bolt ends - according to GOST 12414-94.
2, 3. (Changed edition, Rev. N 1, 2).
3a. The radius under the head - according to GOST 24670-81.
3b. Tolerances and methods for controlling dimensions and deviations in the shape and location of surfaces - according to GOST 1759.1-82.
By agreement between the manufacturer and the consumer, it is allowed to manufacture bolts with a thread tolerance field of 6e.
3c. Surface defects and control methods - according to GOST 1759.2-82.
3a-3c. (Introduced additionally, Rev. N 1).
4. The diameter of the smooth part of the rod is approximately equal to the average thread diameter or nominal thread diameter.
5. Technical requirements - according to GOST 1759.0-87.
The mechanical properties of the bolts must comply with strength classes 3.6, 4.6, 4.8, 5.6, 5.8, 8.8.
6. Theoretical bolt weights are listed in the reference appendix.
APPENDIX (reference)
APPENDIX
Reference
Bolt length | Theoretical weight 1000 pcs. bolts, kg, with nominal thread diameter, mm |
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