Let's consider a calculator for calculating materials online, namely fasteners, self-tapping screws, nails, bolts. Their area of application is according to the specification (for metal, wood, roofing, corrugated sheeting). How to technically correctly use a calculator for calculating the weight and number of screws?
Selecting construction fastening materials is not an easy and rather complicated task. To avoid unnecessary material costs or to run to the shops several times, stopping the repair process, a universal calculator was created for the mass of self-tapping screws and their exact quantity. Now calculating the required number of fasteners is easier than ever. Using a simple table, in a few minutes you can carry out the complex, troublesome, responsible work of counting self-tapping screws according to their weight in kilograms.
How does this calculator work?
A professional construction calculator calculates the material online in a short time according to the specified parameters. This means that you first need to select the type of fastening material, for example, self-tapping screws, as well as nails, dowels, bolts, etc. Specify the specification - for wood, roofing, universal, metal. Next, you need to enter the specific dimensions of the fastening element. The data is indicated in millimeters, the first number indicates the diameter of the screw, and the other the length. Here you need to be extremely careful in order to choose the right product that is exactly suitable for fastening building materials. Then we automatically determine the number of screws per kilogram, as well as the weight of the fastening mechanisms. This online calculator for calculating building materials will help in a few seconds to calculate the exact number of screws for immediate, uninterrupted repair work. ATTENTION: WHEN ENTERING A WHOLE NUMBER WITH A FRACTION INTO THE TABLE, YOU SHOULD USE NOT A COMMA, BUT A POINT TO SEPARATE THE FIRST PART FROM THE SECOND (E.G. 5.6)
If the user finds it difficult to answer how much the required amount of fastening materials will weigh, you need to select the number of screws in kg item in the table and enter the number of how many products you need to purchase. After clicking the “Calculate” button, the self-tapping screw weight calculator will immediately provide the necessary information.
Self-tapping screws catalog
Drywall-wood self-tapping screw, pre-packaged
| Fastener type | Fastener size | Weight 1000 pcs/kg | Pieces (meters) per package |
| Self-tapping screw SHSGD | 3.5x16 | 1,04 | |
| 3.5x19 | 1,15 | 21000 | |
| 3.8x25 | 1,35 | 17000 | |
| 3.8x32 | 1,63 | 12000 | |
| 3.8x35 | 1,76 | 10000 | |
| 3.8x41 | 2,03 | 8000 | |
| 3.8x45 | 2,45 | 6500 | |
| 3.8x51 | 2,53 | 5500 | |
| 3.8x55 | 2,69 | 5000 | |
| 4.2x65 | 3,65 | 3500 | |
| 3.8x70 | 4,12 | 3000 | |
| 4.2x70 | 4 | 3000 | |
| 4.2x75 | 4,99 | 2600 | |
| 4.2x90 | 5,9 | 1600 | |
| 4.8x95 | 7,75 | 1200 | |
| 4.8x100 | 8,5 | 1300 | |
| 4.8x110 | 9,17 | 1200 | |
| 4.8x120 | 11,46 | 1000 | |
| 4.8x127 | 11,46 | 1000 | |
| 4.8x140 | 12,46 | 900 | |
| 4.8x150 | 13,46 | 800 | |
| ZY 3.5x19 | 1,15 | 21000 | |
| ZY 3.8x25 | 1,35 | 16000 | |
| ZY 3.8x32 | 1,63 | 12000 | |
| ZY 3.8x35 | 1,76 | 10000 | |
| ZY 3.8x41 | 2,03 | 8000 | |
| ZY 3.8x45 | 2,19 | 6500 | |
| ZY 3.8x51 | 2,53 | 5500 | |
| ZY 3.8x55 | 2,69 | 5000 | |
| ZY 3.9x13 | 4,12 | 25000 | |
| ZY 3.9x16 | 4,12 | 20000 | |
| ZY 4.2x65 | 4,3 | 3500 | |
| ZY 4.2x75 | 4,99 | 2600 | |
| ZY 4.2x90 | 7,75 | 1600 | |
| ZY 4.8x100 | 9,17 | 1300 | |
| ZY 4.8x110 | 11 | 1200 | |
| ZY 4.8x120 | 11,46 | 1000 | |
| ZY 4.8x127 | 11,46 | 1000 | |
| ZY 4.8x140 | 13,73 | 700 | |
| ZY 4.8x150 | 13,73 | 800 |
Self-tapping plasterboard-metal prepackaging
| Fastener type | Fastener size | Weight 1000 pcs/kg | Pieces (meters) per package |
| ShSGM self-tapping screw | 3.5x16 | 1,04 | 25000 |
| 3.5x19 | 1,15 | 21000 | |
| 3.5x25 | 1,35 | 17000 | |
| 3.5x32 | 1,63 | 12000 | |
| 3.5x35 | 1,76 | 10000 | |
| 3.5x41 | 2,03 | 8000 | |
| 3.5x45 | 2,19 | 6500 | |
| 3.5x51 | 2,53 | 5500 | |
| 3.5x55 | 2,69 | 5000 | |
| 4.2x65 | 3,3 | 3500 | |
| 4.2x75 | 4,99 | 2600 | |
| 4.2x95 | 5,5 | 1500 | |
| 4.2x90 | 5,9 | 1600 | |
| 4.8x100 | 9,17 | 1300 | |
| 4.8x110 | 10 | 1000 | |
| 4.8x120 | 10,5 | 800 | |
| 4.8x127 | 11,46 | 1000 | |
| 4.8x150 | 13,73 | 800 | |
| ZP 3.5x19 | 1,15 | 15000 | |
| ZP 3.5x25 | 1,35 | 17000 | |
| ZP 3.5x32 | 1,63 | 12000 | |
| ZP 3.5x35 | 1,76 | 9000 | |
| ZP 3.5x41 | 2,03 | 7000 | |
| ZP 3.5x45 | 2,19 | 6500 | |
| ZP 3.5x51 | 2,53 | 5500 | |
| ZP 3.5x55 | 2,69 | 5000 | |
| ZP 4.2x65 | 4,2 | 3000 | |
| ZP 4.2x75 | 4,99 | 2600 | |
| ZP 4.2x90 | 5,9 | 1600 | |
| ZP 4.8x100 | 9,17 | 1100 | |
| ZP 4.8x110 | 10,5 | 1200 | |
| ZP 4.8x120 | 11 | 1000 | |
| ZP 4.8x130 | 12 | 650 | |
| ZP 4.8x150 | 13,73 | 500 |
Metal-to-metal self-tapping screw with press washer, industrial packaging
| Fastener type | Fastener size | Weight 1000 pcs/kg | Pieces (meters) per package |
| Self-tapping screw ShSMM press washer | 4.2x13 | 1,4 | 15000 |
| 4.2x16 | 1,6 | 13000 | |
| 4.2x19 | 1,84 | 12000 | |
| 4.2x25 | 2,23 | 10000 | |
| 4.2x32 | 2,49 | 7500 | |
| 4.2x38 | 2,6 | 6000 | |
| 4.2x41 | 3,25 | 6000 | |
| 4.2x50 | 4,22 | 4000 | |
| 4.2x57 | 5 | 6000 | |
| 4.2x75 | 5,16 | 2500 | |
| with drill 4.2x13 | 1,74 | 15000 | |
| with drill 4.2x16 | 1,94 | 13000 | |
| with drill 4.2x19 | 2,12 | 12000 | |
| with drill 4.2x25 | 2,5 | 10000 | |
| with drill 4.2x32 | 2,94 | 7500 | |
| with drill 4.2x38 | 3,2 | 6000 | |
| with drill 4.2x41 | 3,6 | 4000 | |
| with drill 4.2x50 | 4,26 | 3900 | |
| with drill 4.2x57 | 5 | 4000 | |
| with drill 4.2x75 | 5,68 | 2500 |
Roofing screws painted in the basic colors of the roof according to RAL, pre-packaged
| Fastener type | Fastener size | Weight 1000 pcs/kg | Pieces (meters) per package |
| Roofing self-tapping screw | ZP 4.8x28 RAL 3003 (red ruby) | 5,23 | 2500 |
| ZP 4.8x28 RAL 3005 (red wine) | 5,23 | 2500 | |
| ZP 4.8x28 RAL 3009 (red oxide) | 5,23 | 2500 | |
| ZP 4.8x28 RAL 3011 (brown-red) | 5,23 | 2500 | |
| ZP 4.8x28 RAL 5005 (saturated blue) | 5,23 | 2500 | |
| ZP 4.8x28 RAL 5009 (blue azure) | 5,23 | 2500 | |
| ZP 4.8x28 RAL 6002 (green sheet) | 5,23 | 2500 | |
| ZP 4.8x28 RAL 6005 (moss green) | 5,23 | 2500 | |
| ZP 4.8x28 RAL 6020 (green chrome) | 5,23 | 2500 | |
| ZP 4.8x28 RAL 8017 (brown chocolate) | 5,23 | 2500 | |
| ZP 4.8x28 RAL 8028 (earth brown) | 5,23 | 2500 | |
| ZP 4.8x28 RAL 9003 (white) | 5,23 | 2500 | |
| ZP 4.8x35 RAL 3009 (red oxide) | 6 | 2500 | |
| ZP 4.8x35 RAL 3011 (brown-red) | 6 | 2500 | |
| ZP 4.8x35 RAL 5005 (saturated blue) | 6 | 2500 | |
| ZP 4.8x35 RAL 5009 (blue azure) | 6 | 2500 | |
| ZP 4.8x35 RAL 6002 (green sheet) | 6 | 2500 | |
| ZP 4.8x35 RAL 6005 (moss green) | 6 | 2500 | |
| ZP 4.8x35 RAL 6020 (green chrome) | 6 | 2500 | |
| ZP 4.8x35 RAL 8017 (brown chocolate) | 6 | 2500 | |
| ZP 4.8x35 RAL 8028 (earth brown) | 6 | 2500 | |
| ZP 4.8x35 RAL 9003 (white) | 6 | 2500 | |
| ZP 4.8x51 RAL 3009 (red oxide) | 7,07 | 2500 | |
| ZP 4.8x51 RAL 3011 (brown-red) | 7,07 | 2500 | |
| ZP 4.8x51 RAL 5005 (saturated blue) | 7,07 | 2500 | |
| ZP 4.8x51 RAL 5009 (blue azure) | 7,07 | 2500 | |
| ZP 4.8x51 RAL 6002 (green sheet) | 7,07 | 2500 | |
| ZP 4.8x51 RAL 6005 (moss green) | 7,07 | 2500 | |
| ZP 4.8x51 RAL 6020 (green chrome) | 7,07 | 2500 | |
| ZP 4.8x51 RAL 8017 (brown chocolate) | 7,07 | 2500 | |
| ZP 4.8x51 RAL 8028 (earth brown) | 7,07 | 2500 | |
| ZP 4.8x51 RAL 9003 (white) | 7,07 | 2500 | |
| ZP 4.8x70 RAL 3009 (red oxide) | 9 | 2500 | |
| ZP 4.8x70 RAL 3011 (brown-red) | 9 | 2500 | |
| ZP 4.8x70 RAL 5005 (saturated blue) | 9 | 2500 | |
| ZP 4.8x70 RAL 5009 (blue azure) | 9 | 2500 | |
| ZP 4.8x70 RAL 6002 (green sheet) | 9 | 2500 | |
| ZP 4.8x70 RAL 6005 (moss green) | 9 | 2500 | |
| ZP 4.8x70 RAL 6020 (green chrome) | 9 | 2500 | |
| ZP 4.8x70 RAL 8017 (brown chocolate) | 9 | 2500 | |
| ZP 4.8x70 RAL 8028 (earth brown) | 9 | 2500 | |
| ZP 4.8x70 RAL 9003 (white) | 9 | 2500 | |
| ZP 4.8x76 RAL 3009 (red oxide) | 11 | 2500 | |
| ZP 4.8x76 RAL 3011 (brown-red) | 11 | 2500 | |
| ZP 4.8x76 RAL 5005 (saturated blue) | 11 | 2500 | |
| ZP 4.8x76 RAL 5009 (blue azure) | 11 | 2500 | |
| ZP 4.8x76 RAL 6002 (green sheet) | 11 | 2500 | |
| ZP 4.8x76 RAL 6005 (moss green) | 11 | 2500 | |
| ZP 4.8x76 RAL 6020 (green chrome) | 11 | 2500 | |
| ZP 4.8x76 RAL 8017 (brown chocolate) | 11 | 2500 | |
| ZP 4.8x76 RAL 8028 (earth brown) | 11 | 2500 | |
| ZP 4.8x76 RAL 9003 (white) | 11 | 2500 | |
| ZP 5.5x19 RAL 3009 (red oxide) | 5,6 | 2500 | |
| ZP 5.5x19 RAL 3011 (brown-red) | 5,6 | 2500 | |
| ZP 5.5x19 RAL 5005 (saturated blue) | 5,6 | 2500 | |
| ZP 5.5x19 RAL 5009 (blue azure) | 5,6 | 2500 | |
| ZP 5.5x19 RAL 6002 (green sheet) | 5,6 | 2500 | |
| ZP 5.5x19 RAL 6005 (moss green) | 5,6 | 2500 | |
| ZP 5.5x19 RAL 6020 (green chrome) | 5,6 | 2500 | |
| ZP 5.5x19 RAL 8017 (brown chocolate) | 5,6 | 2500 | |
| ZP 5.5x19 RAL 8028 (earth brown) | 5,6 | 2500 | |
| ZP 5.5x19 RAL 9003 (white) | 5,6 | 2500 | |
| ZP 5.5x25 RAL 3009 (red oxide) | 6,33 | 2500 | |
| ZP 5.5x25 RAL 3011 (brown-red) | 6,33 | 2500 | |
| ZP 5.5x25 RAL 5005 (saturated blue) | 6,33 | 2500 | |
| ZP 5.5x25 RAL 5009 (blue azure) | 6,33 | 2500 | |
| ZP 5.5x25 RAL 6002 (green sheet) | 6,33 | 2500 | |
| ZP 5.5x25 RAL 6005 (moss green) | 6,33 | 2500 | |
| ZP 5.5x25 RAL 6020 (green chrome) | 6,33 | 2500 | |
| ZP 5.5x25 RAL 8017 (brown chocolate) | 6,33 | 2500 | |
| ZP 5.5x25 RAL 8028 (earth brown) | 6,33 | 2500 | |
| ZP 5.5x25 RAL 9003 (white) | 6,33 | 2500 |
Sealing washer (EPDM)
| Fastener type | Sealing washer (EPDM) | Weight 1000 pcs/kg | Pieces (meters) per package |
| Sealing washer (EPDM) | 10×14 | 1,16 | 15000 |
| 12×14 | 1,16 | 15000 |
Self-tapping screw for GVL pre-packaging
| Fastener type | Fastener size | Weight 1000 pcs/kg | Pieces (meters) per package |
| Self-tapping screw for GVL | 3.9x19 | 1,26 | 18000 |
| 3.9x25 | 1,6 | 15000 | |
| 3.9x30 | 1,9 | 12000 | |
| 3.9x45 | 2,65 | 8000 |
Window self-tapping screw, drill, white zinc
| Fastener type | Fastener size | Weight 1000 pcs/kg | Pieces (meters) per package |
| Window self-tapping screw, white, drill | 3.9x13 | 0,89 | 25000 |
| 3.9x16 | 1,07 | 18000 | |
| 3.9x19 | 1,26 | 20000 | |
| 3.9x22 | 1,5 | 16000 | |
| 3.9x25 | 1,61 | 20000 | |
| 3.9x32 | 2,06 | 20000 | |
| 3.9x35 | 2,25 | 20000 | |
| 3.9x38 | 2,4 | 20000 |
Window self-tapping screw, drill, yellow pass
| Fastener type | Fastener size | Weight 1000 pcs/kg | Pieces (meters) per package |
| Window self-tapping screw, yellow, drill | 3.9x13 | 0,89 | 25000 |
| 3.9x16 | 1,07 | 18000 | |
| 3.9x19 | 1,26 | 20000 | |
| 3.9x22 | 1,5 | 16000 | |
| 3.9x25 | 1,61 | 20000 | |
| 3.9x32 | 2,06 | 20000 | |
| 3.9x35 | 2,25 | 20000 | |
| 3.9x38 | 2,4 | 20000 |
Self-tapping screws, white/yellow, sharp
| Fastener type | Fastener size | Weight 1000 pcs/kg | Pieces (meters) per package |
| Window fittings self-tapping screw | SG 4.1Х20 | 1,24 | |
| SG 4.1Х25 | 1,47 | ||
| SG 4.1Х30 | 1,65 | ||
| SG 4.1Х35 | 1,87 | ||
| SG 4.1Х40 | 2,1 |
Self-tapping screw for sandwich panels, pre-packaged
| Fastener type | Fastener size | Weight 1000 pcs/kg | Pieces (meters) per package |
| Self-tapping screw for sandwich panels | 6.3/5.5x105 | 800 | |
| 6.3/5.5x113 | 19,63 | 800 | |
| 6.3/5.5x120 | 20,67 | 750 | |
| 6.3/5.5x130 | 22 | 750 | |
| 6.3/5.5x135 | 22,57 | 700 | |
| 6.3/5.5x140 | 23,29 | 700 | |
| 6.3/5.5x150 | 24,62 | 650 | |
| 6.3/5.5x160 | 26 | 590 | |
| 6.3/5.5x185 | 29,6 | 500 | |
| 6.3/5.5x190 | 30,2 | 500 | |
| 6.3/5.5x240 | 37 | 400 | |
| 6.3/5.5x280 | 300 | ||
| 6.3/5.5x285 | 43 | 300 | |
| 6.3/5.5x98 | 17,33 | 900 |
Metal-to-metal self-tapping screw, pre-packaged
| Fastener type | Fastener size | Weight 1000 pcs/kg | Pieces (meters) per package |
| ShSMM self-tapping screw | ZP sharp 3.5x11 | 1,03 | 25000 |
| ZP sharp 3.5x9.5 | 0,96 | 30000 | |
| ZP drill 3.5x11 | 1,03 | 25000 | |
| ZP drill 3.5x9.5 | 0,97 | 30000 | |
| sharp 3.5x11 | 1,03 | 25000 | |
| sharp 3.5x9.5 | 0,96 | 30000 | |
| drill 3.5x11 | 1,03 | 25000 | |
| drill 3.5x9.5 | 0,97 | 30000 |
Roofing self-tapping screw DIN7504K pre-packaged
| Fastener type | Fastener size | Weight 1000 pcs/kg | Pieces (meters) per package |
| Roofing self-tapping screw | ZP 4.8x28 | 5,1 | 4000 |
| ZP 4.8x35 | 5,79 | 3700 | |
| ZP 4.8x51 | 7,16 | 2500 | |
| ZP 4.8x60 | 7,6 | 2000 | |
| ZP 4.8x64 | 8,25 | 2000 | |
| ZP 4.8x70 | 8,7 | 1500 | |
| ZP 4.8x76 | 9,17 | 1800 | |
| ZP 4.8x80 | 9,5 | 1000 | |
| ZP 5.5x19 | 5,6 | 3500 | |
| ZP 5.5x19 WITHOUT WASHER!!! | 5 | 4000 | |
| ZP 5.5x25 | 6,33 | 3000 | |
| ZP 5.5x32 | 7,55 | 2000 | |
| ZP 5.5x38 | 7,84 | 2500 | |
| ZP 5.5x51 | 9,45 | 1500 | |
| ZP 5.5x64 | 10,07 | 1400 | |
| ZP 5.5x76 | 12,27 | 1200 | |
| ZP 5.5x102 | 24 | 1200 | |
| ZP 6.3x102 | 20,8 | 500 | |
| ZP 6.3x127 | 25,2 | 500 | |
| ZP 6.3x152 | 29,25 | 400 | |
| ZP 6.3x175 | 34 | 500 | |
| ZP 6.3x19 | 7,64 | 2500 | |
| ZP 6.3x25 | 8,2 | 2500 | |
| ZP 6.3x32 | 9,35 | 2300 | |
| ZP 6.3x38 | 10,3 | 2000 | |
| ZP 6.3x51 | 12,2 | 1500 | |
| ZP 6.3x64 | 14,47 | 1500 | |
| ZP 6.3x70 | 15 | 800 | |
| ZP 6.3x76 | 16,4 | 1000 | |
| ZP 6.3x80 | 17,8 | 1000 | |
| ZP 6.3x90 | 19 | 1000 |
Types of calculation tables for calculating the mass of self-tapping screws according to their specifications
The following tables exist: • calculators for metal self-tapping screws with a press washer; • calculators for wood screws, galvanized; • calculators for metal roofing screws, for corrugated sheets; • construction calculators for calculating black pointed screws for wood and metal. All tables are almost identical, the dimensions of the screws are available, the user selects the desired column and automatically receives a calculation of the mass of one product in grams, then the estimated number of pieces is entered and the mass of the material in kilograms is calculated.
Self-tapping screw weight table by size
Table of self-tapping screws in kilograms
Roofing Screw Weight Chart
You can first obtain information about the number of pieces of self-tapping screws per kilogram. Everything is quite simple and clear. Thanks to this calculator for calculating building materials, namely fastening elements, you can easily purchase the exact number of self-tapping screws and screws in the store, without spending extra time and money. Let your work be fast and efficient, and calculators for calculating the consumption of fasteners will help you with this!
Self-tapping screws: weight calculator, production, types
It can be said without exaggeration that self-tapping screws are considered one of the most common types of fasteners at present. Of course, this type of fastener is very similar to a product such as a screw. Without experience, you can buy a simple screw instead of a self-tapping screw (self-tapping screw). You just need to know the main differences. Self-tapping screws are always threaded along their entire length; the slot is almost always cross-shaped, with rare exceptions. In addition, a screw and a self-tapping screw differ in the shape of the thread. The first one has a higher ridge and a wider step. In addition, self-tapping screws are screwed in without first drilling a hole, since they end in a point that is sharpened like a drill.
Difference between screws and self-tapping screws
If you compare the production of screws and self-tapping screws, you need to take into account that screws can have a diameter above 12 mm. Products of this diameter are manufactured by hot stamping. The diameter of the self-tapping screw is limited to a diameter of 4.8 mm and is made only by cold stamping.
First, the wire is pulled through a drawing machine to give it the necessary technical characteristics by mixing the structural fibers of the metal. This allows for better processing of the workpiece. The wire is drawn through the furnace by passing through several dies.
Semicircular screw calculator
In the new century, business owners are forced to adhere to the regime of economy, so drawing up an accurate estimate without costs is the initial task.
This also applies to counting fasteners - hardware, screws intended for disassembling or combining parts. The screw looks like an elongated piece with a male thread on one side and a head that transmits torque on the opposite side.
The weight of the screws is of decisive importance for drawing up estimates; an online calculator is used for this purpose. The tool takes into account indicators that allow you to accurately calculate the weight of screws of various types, including semicircular screws.
The screw calculator allows you to calculate how many hardware is contained in 1 kilogram. The calculator also provides the ability to determine the weight of fasteners if the number of pieces is known.
Popular sizes of semicircular screws in Russia
- 5x50
- 4x12
- 2x10
- 10x25
- 5x60
Tables of weight and quantity of screws with a semicircular head according to different DIN, TU and GOST
| Screw name and dimensions | Screw length L, mm | Thread diameter D, mm | Weight of 1000 pieces of screws | Pieces in 1 kg | Density, kg/m³ | Standard |
| Screw M4x4 | 4 | 4 | 1.0040 kg. | 996 pcs. | 7850 | GOST 11644-75 |
| Screw M3.5x5 | 5 | 3.5 | 0.7300 kg. | 1370 pcs. | 7850 | GOST 11644-75 |
| Screw M2.5x8 | 8 | 2.5 | 0.4000 kg. | 2500 pcs. | 7850 | GOST 11644-75 |
| Screw M5x8 | 8 | 5 | 2.3780 kg. | 421 pcs. | 7850 | GOST 11644-75 |
| Screw M6x8 | 8 | 6 | 3.7640 kg. | 266 pcs. | 7850 | GOST 11644-75 |
| Screw M2x10 | 10 | 2 | 0.2640 kg. | 3788 pcs. | 7850 | GOST 11644-75 |
| Screw M4x10 | 10 | 4 | 1.4690 kg. | 681 pcs. | 7850 | GOST 11644-75 |
| Screw M5x10 | 10 | 5 | 2.6250 kg. | 381 pcs. | 7850 | GOST 11644-75 |
| Screw M4x12 | 12 | 4 | 1.6240 kg. | 616 pcs. | 7850 | GOST 11644-75 |
| Screw M5x12 | 12 | 5 | 2.8730 kg. | 348 pcs. | 7850 | GOST 11644-75 |
| Screw M6x12 | 12 | 6 | 4.4700 kg. | 224 pcs. | 7850 | GOST 11644-75 |
| Screw M8x14 | 14 | 8 | 10.2700 kg. | 97 pcs. | 7850 | GOST 11644-75 |
| Screw M3x20 | 20 | 3 | 1.2200 kg. | 820 pcs. | 7850 | GOST 11644-75 |
| Screw M4x20 | 20 | 4 | 2.3270 kg. | 430 pcs. | 7850 | GOST 11644-75 |
| Screw M5x20 | 20 | 5 | 3.9470 kg. | 253 pcs. | 7850 | GOST 11644-75 |
| Screw M6x20 | 20 | 6 | 5.8810 kg. | 170 pcs. | 7850 | GOST 11644-75 |
| Screw M10x20 | 20 | 10 | 21.5000 kg. | 47 pcs. | 7850 | GOST 11644-75 |
| Screw M10x25 | 25 | 10 | 24.0100 kg. | 42 pcs. | 7850 | GOST 11644-75 |
| Screw M3.5x35 | 35 | 3.5 | 2.5200 kg. | 397 pcs. | 7850 | GOST 11644-75 |
| Screw M5x35 | 35 | 5 | 6.1210 kg. | 163 pcs. | 7850 | GOST 11644-75 |
| Screw M6x35 | 35 | 6 | 9.1130 kg. | 110 pcs. | 7850 | GOST 11644-75 |
| Screw M8x35 | 35 | 8 | 17.7200 kg. | 56 pcs. | 7850 | GOST 11644-75 |
| Screw M5x50 | 50 | 5 | 8.2960 kg. | 121 pcs. | 7850 | GOST 11644-75 |
| Screw M5x60 | 60 | 5 | 9.7450 kg. | 103 pcs. | 7850 | GOST 11644-75 |
| Screw M3.5x65 | 65 | 3.5 | 4.3090 kg. | 232 pcs. | 7850 | GOST 11644-75 |
Button head screw
GOST and TU standards available in calculator calculations and weight tables:
- GOST 11644-75 - Screws with a cylindrical rounded head of accuracy classes A and B
Calculation parameters
The following indicators are taken into account:
- type of hardware: in addition to the screw with a semicircular head, the weight and number of hardware with a countersunk head, with a rounded head, and with an internal hexagon are calculated;
- standard used: GOST 11738-84 for cylindrical and hexagonal screws, GOST 174175-80 for screws with countersunk heads, GOST 11644-75 regulates the rules for manufacturing a semicircular screw with a press washer and with a cross-shaped slot. International standards also apply to these products: DIN 912, DIN 965 and others;
- diameter and length;
- coating used: zinc, copper, chrome, use of anti-corrosion and other compounds;
- the strength of hardware, which is calculated based on their mechanical properties. In total, there are 11 strength classes of these fasteners;
- number of hardware.
After entering standard indicators, the system calculates the number of fasteners or its weight online. If materials other than metal are used, their coefficient is taken into account.
