bolt Iran

Allen bolt 5.6

Allen steel bolts are made from carbon steel in various grades such as 5.6, 8.8, and 10.9, offering tensile strength between 400 and 1040 MPa. These bolts are manufactured in diameters ranging from 3 to 30 millimeters and lengths between 8 and 250 millimeters. The standard head angle is typically 90 or 120 degrees, designed according to DIN 912, ISO 4762, and ANSI B18.3 standards. The internal hexagonal geometry of Allen bolts allows for high torque transmission. Surface hardening heat treatments increase wear resistance and mechanical durability. Coatings such as cold galvanizing, hot-dip galvanizing, or black phosphate provide corrosion protection. These bolts are fastened with Allen keys and are widely used in high-precision connections in metal industries, machinery manufacturing, and structural applications.

Allen steel bolts feature metric threads based on ISO standards and are produced in both coarse and fine thread types with manufacturing tolerances of ±0.2 millimeters. Thread profiles often conform to DIN 13 standards and are available in partial or full thread versions. Strength classes 8.8 and 10.9 are suitable for applications with high mechanical loads and repeated stress. These bolts exhibit high resistance to torsional torque and maintain their position withou

bolt and nut from Iran to Iraq

Exporting bolts and nuts from Iran to Iraq is considered one of the growing trade activities in the construction and industrial supply sector, mainly due to the strong economic relations between the two countries and their close geographical proximity, which significantly reduces transportation and logistics costs. Iranian-manufactured bolts and nuts are known for their acceptable production quality and competitive pricing compared to European alternatives, making them a practical choice for construction projects, manufacturing plants, and maintenance workshops in the Iraqi market. These products are available in various international standards such as DIN and ASTM and in different materials including carbon steel and stainless steel, allowing them to meet the technical requirements of the oil, power, and infrastructure sectors.

The Iraqi market shows increasing demand for bolts and nuts imported from Iran, driven by fast delivery times and the ability to supply large volumes suitable for both public and private projects. Successful export of bolts and nuts to Iraq depends on compliance with technical specifications, proper packaging, and the provision of quality and certificate of origin documents, all of which enhance the trust of Iraqi importers. Moreover, the flexibility o

Bolt

Round head screws are typically made from low-carbon steel Grade 2 or 4.6 with an electro-galvanized coating. Common thread diameters range from M3 to M16 with standard ISO metric pitch. The dome head height is approximately 0.5 to 0.7 times the nominal screw diameter. The fillet radius at the head base is typically 1.2 times the screw diameter. Their tensile strength is a minimum of 400 MPa for Class 4.6. The effective thread depth is designed at about 0.65 times the nominal diameter. A zinc coating with a thickness of 5 to 15 microns is applied. This coating provides corrosion resistance for up to 120 hours in salt spray tests. The allowable tightening torque for an M8 screw is about 10 to 15 Nm. The thread angle is precisely 60 degrees according to ISO 68-1.

The screw structure features a smooth, rounded dome head and a fully or partially threaded shank. The head diameter is about 1.5 to 2 times the nominal screw diameter. The head edges are fully rounded and free of sharp burrs. This design minimizes the risk of injury and surface damage. The overall length of standard screws ranges from 6 to 100 mm. The screw end is typically flat or slightly rounded. Its primary application is in aesthetic joints and high-traffic areas. Thread accuracy is manufactured to Class 6g for gen

stud bolt B8M

The B8M stud bolt, manufactured according to ASTM A193 Grade B8M, is made from austenitic stainless steel Type 316 and offers excellent resistance to chloride and acidic corrosion. Its chemical composition includes 16–18% chromium, 10–14% nickel, and 2–3% molybdenum. In the annealed condition, it provides a minimum tensile strength of 75 ksi 515 MPa and a minimum yield strength of 30 ksi 205 MPa. The maximum surface hardness is 223 Brinell, and in certain cases, it can be supplied in a strain-hardened condition. B8M stud bolts are typically produced in diameters ranging from 1/4 inch to 2.5 inches with Unified 2A thread class.

The operating temperature range of the B8M stud bolt is from minus 200 to plus 550 degrees Celsius, making it ideal for use in chemical, pharmaceutical, and marine industries. Due to its high molybdenum content, it provides better resistance to chloride-rich environments such as seawater compared to B8 grade. Common applications include heat exchangers, chemical reactors, and process piping systems. These fasteners usually require no additional surface coating due to their inherent corrosion resistance. Quality control includes tensile testing, hardness testing, chemical analysis, and, when necessary, non-destructive tests such as PT or UT. B8M stu

Bolt Stadium B8

The B8 stud bolt is made from austenitic stainless steel type 304 or its equivalent and is suitable for corrosive and high-temperature environments. This stud bolt is manufactured in accordance with ASTM A193 Grade B8 and has a minimum tensile strength of 75 ksi approximately 515 MPa and a minimum yield strength of 30 ksi about 205 MPa. Its maximum surface hardness is 223 Brinell and it is typically supplied in either annealed or strain-hardened condition. The threads follow the Unified National Thread standard with a 2A class fit, and dimensional accuracy is defined by ASME B1.1. This type of stud bolt is commonly used with grade 8 stainless steel nuts and flat washers.

The operating temperature range for B8 stud bolts is from minus 195 to plus 538 degrees Celsius, making them suitable for applications with extreme thermal variations. These bolts are available in standard diameters from 1/4 inch to 2.5 inches and in various lengths upon request. Their surface offers excellent corrosion resistance without the need for additional coating. B8 stud bolts are primarily used in process equipment within the food, pharmaceutical, oil and gas, and marine industries. To ensure mechanical integrity, tensile, hardness, and when required, non-destructive tests such as PT or MPI are conduc

Bolts Metric

Metric stud bolts are produced from low-carbon steel Grade 4.6 to alloy steel Grade 12.9 per ISO 898-1. Common nominal diameters range from M1.0 to M64 with standard ISO 261 or fine ISO 965 thread pitch. Their tensile strength varies between 400 and 1220 MPa. Standard production lengths range from 6 mm to 3 meters in linear rods. Thread diameter tolerance falls within accuracy classes 6g commercial or 4h precision. The effective thread depth is typically 0.6 to 0.7 times the bolts nominal diameter. The metric thread angle is precisely 60 degrees. Common coatings include electro-galvanizing with a 5-15 micron thickness and yellow passivation. This coating provides corrosion resistance for up to 120 hours in salt spray tests.

The bolt structure is a uniform, fully threaded cylinder without a head. Its ends are typically finished flat or rounded ISO 4753. High-quality grade studs have axial straightness with less than 1 mm deviation per meter. The yield strength of a Grade 8.8 bolt is at least 640 MPa. These bolts exhibit ductility with up to 12% elongation before fracture. The allowable torsional torque for an M10 Grade 10.9 bolt is approximately 50 Nm. The standard operational temperature range is -50 to +150°C. Metric studs are commonly used in industry for cutting, threading

20X100 8.8 allen bolt

The quenched and tempered steel Allen bolt grade 8.8 size M20 with a length of 100 mm has an approximate weight of 0.51 kg and is manufactured according to DIN 912 standards. Its alloy composition includes 0.25–0.55% carbon, 0.5–0.8% manganese, small amounts of silicon, and less than 0.035% sulfur and phosphorus. This chemical balance improves tensile strength, enhances hardenability, and reduces brittleness under cyclic or high-stress loading.

The heat treatment process for the M20x100 Allen bolt typically involves quenching in oil or water followed by tempering at controlled temperatures. This sequence produces a martensitic structure with a surface hardness of 22–34 HRC. The tempering stage increases toughness, minimizes the risk of brittle fracture, and provides an optimized balance of hardness, strength, and ductility for industrial use.

Industrial applications of the 8.8 M20x100 Allen bolt include oil and gas facilities, heavy mining equipment, construction machinery, and steel structure assemblies. The longer length allows fastening of thicker components and supports higher axial loads. It is also widely used in machines such as hydraulic presses, industrial cranes, and heavy production lines. Protective coatings like phosphating or galvanization further extend

Bolt with washer

Washer head screws are manufactured from low-carbon steel Grade 4.6 to alloy steel Grade 10.9. Standard thread diameters range from M4 to M24 with coarse pitch per ISO 4017. Their tensile strength varies between 400 and 1040 MPa. The integrated flat washer is typically made from hardened steel with a hardness of 300 to 400 Vickers. The washers outer diameter is designed to be 1.7 to 2.5 times the screws nominal diameter. Washer thickness is approximately 0.15 to 0.3 times the screw diameter. Common coatings include hot-dip galvanizing with a thickness of 45 to 80 microns. This coating provides corrosion resistance for up to 1000 hours in salt spray tests. The final tightening torque for Grade 8.8 ranges from 10 to 600 Newton-meters.

The screw structure consists of a hexagonal head, a fixed washer, and a threaded shank. The head height is typically 0.6 to 0.8 times its nominal diameter. The integrated washer reduces surface pressure by up to 40% by creating a larger contact area. This design prevents head sinking into soft materials. The standard operating temperature range is -50 to +150°C. Production tolerance for thread diameter follows accuracy grade 6g. The washer often features a diamond knurl texture with a depth of 0.05 mm to increase friction. These screws can withsta

bolt

Screws are categorized based on head geometry, thread type, and application. Hex head screws ISO 4017 ranging from M3 to M100 are the most common type. Socket head cap screws Allen ISO 4762 are used in confined spaces. Self-tapping screws for wood and sheet metal feature coarse threads and Pozidriv or Phillips heads. Anchor bolts, such as chemical and mechanical anchors, are designed for concrete. Lag screws with hex heads and tapered threads are used in wood. Socket head and shoulder screws serve precision assembly needs. Their materials range from steel, stainless steel, brass, titanium, and plastic, with strength classes from 3.6 to 14.9. Common coatings include galvanized, nickel, zinc dichromate, and epoxy.

Functionally, screws can be fully threaded, partially threaded, or fine-pitched ISO 965. High-strength structural bolts ISO 898-1 like Grade 10.9 and 12.9 are for heavy loads. Prevailing torque lock screws with integrated washers SEMs are widely used in automotive. Dowel screws have threaded ends on both sides. DIN, ANSI/ASME, and JIS standards define technical specifications. Screw selection depends on tensile/shear load, operating environment, and corrosion resistance requirements. Each screw type requires specific tightening torque and installation methods e.g., pre

20X80 8.8 allen bolt

The steel Allen bolt grade 8.8 size M20 with a length of 80 mm has an approximate weight of 0.41 kg and is manufactured according to DIN 912 standards. Its chemical composition contains carbon in the range of 0.25–0.55% and sulfur below 0.035%, ensuring controlled steel quality. The proper carbon content increases tensile strength, while the low sulfur percentage prevents brittleness-related cracking and improves fatigue resistance under cyclic loading.

The M20x80 Allen bolt uses a standard right-hand metric thread with a 60-degree flank angle and a 2.5 mm pitch. This thread type ensures effective engagement and uniform stress distribution along the joint. The effective thread cross-sectional area is about 245 mm², enabling the bolt to withstand axial loads of more than 150 kN, which makes it highly suitable for demanding mechanical applications.

The industrial applications of the 8.8 M20x80 Allen bolt include oil and gas facilities, construction machinery, mining equipment, and heavy steel structures. Its extended length and high strength make it ideal for chassis connections and assemblies subjected to vibration. Additionally, protective coatings such as phosphating or galvanization are often applied to increase wear resistance and prevent corrosion in harsh operating

Steel stud bolt

Stainless steel stud bolts are made from austenitic or martensitic stainless steel and are designed for corrosive environments and varying temperature conditions. Their typical chemical composition includes 16 to 18 percent chromium, 8 to 14 percent nickel, and varying amounts of carbon and molybdenum. The tensile strength of these stud bolts usually ranges from 70 to 125 ksi approximately 480 to 860 MPa. Heat treatment involves annealing to maintain flexibility and, in some cases, tempering to increase hardness. The surface hardness of stainless steel stud bolts ranges between 200 and 300 Brinell, and common diameters are produced from 1/4 inch to 3 inches. Threads are manufactured according to ASME B1.1 standard with class 2A or 3A fits.

Operating temperatures for stainless steel stud bolts range from minus 200 to plus 600 degrees Celsius, offering stable performance and excellent corrosion resistance. Their main applications include oil, gas, petrochemical, food, and pharmaceutical industries. Surface coatings are generally unnecessary due to the inherent stainless properties of the steel. Quality control involves tensile testing, hardness testing, chemical analysis, and non-destructive tests such as PT and UT. These stud bolts are ideal for critical connections in industri

Steel stud bolt

Steel stud bolts are manufactured from carbon or alloy steel with precise chemical compositions including carbon, manganese, phosphorus, and sulfur, making them widely used in industrial connections. Depending on the grade, their tensile strength ranges from 60 to 150 ksi. Common grades like ASTM A193 B7 specify a minimum tensile strength of 125 ksi and a yield strength of 105 ksi. Threads are produced according to ASME B1.1 standard with 2A or 3A class fits and have very tight dimensional tolerances. Standard diameters range from 1/4 inch to 4 inches, and lengths can extend to several meters. Surface treatments such as black oxide or hot-dip galvanizing enhance corrosion resistance and durability.

Heat treatment for steel stud bolts includes quenching at 850 to 900 degrees Celsius followed by tempering around 600 degrees Celsius. This process improves hardness, fatigue resistance, and structural stability. Final hardness varies by grade, typically ranging from 200 to 350 Brinell or 24 to 35 Rockwell C. These stud bolts perform well in temperature ranges between minus 29 and plus 427 degrees Celsius. Quality control includes tensile testing, hardness measurement, chemical analysis, and, when required, non-destructive testing such as UT and MPI. Steel stud bolts play a critical

20X60 8.8 allen bolt

The quenched and tempered steel Allen bolt grade 8.8 size M20 with a length of 60 mm has an approximate weight of 0.31 kg and complies with DIN 912 and ISO 898 standards. Its alloy composition typically includes 0.25–0.55% carbon, 0.5–0.8% manganese, and minor amounts of silicon and phosphorus. This combination enhances mechanical strength and improves heat treatment capability, providing the necessary conditions for high tensile and shear load resistance.

The heat treatment process of the M20x60 Allen bolt involves quenching and tempering, resulting in a surface hardness of 22 to 34 HRC. Quenching forms a martensitic structure, while tempering increases toughness and reduces brittleness. The outcome is a bolt with an optimized balance of hardness and ductility, making it ideal for demanding industrial applications requiring both strength and reliability.

Industrial applications of the 8.8 M20x60 Allen bolt include oil and gas facilities, mining machinery, construction equipment, and heavy steel structures. With a 2.5 mm pitch and an effective thread cross section of 245 mm², it can withstand axial loads exceeding 150 kN. Its high resistance to vibration and cyclic loads, combined with protective coatings such as phosphating or galvanization, extends service life and e

Stainless steel stud bolt Carbon steel stud bolt

Stainless steel stud bolts are made from corrosion-resistant alloys such as 304 or 316, typically containing 18% chromium and 8–10% nickel. This composition ensures high resistance against corrosion, rust, and chemical exposure. Their tensile strength typically ranges from 75 to 100 ksi, and they can withstand temperatures up to 870°C. These stud bolts are manufactured in compliance with international standards such as ASTM A193 B8 or B8M. Threads are available in both metric and inch sizes, and the surface undergoes precise machining. Stainless steel stud bolts are ideal for use in corrosive environments such as petrochemical plants, food processing industries, and marine applications.

Carbon steel stud bolts are produced from alloy or high-strength carbon steel, usually hardened and tempered through heat treatment. They typically provide a minimum tensile strength of 125,000 psi and a yield strength of 105,000 psi. Main alloying elements include carbon, manganese, chromium, and molybdenum. These bolts are manufactured according to ASTM A193 B7 or DIN 975 standards. The surface is often coated with zinc galvanized or Dacromet to prevent corrosion. This type of stud bolt is widely used in oil, gas, steam, and high-pressure industrial applications, especially for flange an

Flat head countersunk Allen bolt

Flat head countersunk Allen bolts are manufactured from carbon steel, alloy steel, or stainless steel and are specifically designed to sit flush with the surface of the workpiece. The countersink angle is typically 90 or 82 degrees, with diameters ranging from 3 to 20 millimeters and lengths from 8 to 120 millimeters. These bolts are produced according to DIN 7991 or ISO 10642 standards, ensuring flat geometry and full surface integration. Depending on the material, their tensile strength ranges from 500 to 1000 MPa, with common strength grades including 8.8, 10.9, or A2-70. They are tightened using an Allen key and are ideal for applications that require a smooth, flush surface without protrusions.

The thread of a flat head countersunk Allen bolt is typically metric, designed according to ISO standards with pitch values between 0.7 and 2.0 millimeters. Threads are available in both full and partial lengths, machined with a tolerance of ±0.15 millimeters. Surface finishes may include phosphate, galvanization, or polished stainless to improve corrosion resistance. Surface hardness ranges from 22 to 45 HRC for steel bolts and 200 to 400 Vickers for stainless versions. These bolts are used in aerospace, electronics, mold-making, and decorative fastening applications, allowing fo