• Tel
• 021-55429480
• | Cell
• 09121933785

20X80 8.8 allen bolt

• Application : ماشین آلات صنعتی
• Type : آلن
• Grade : 8.8
• Cover : سیاه - خود رنگ
• Standard : DIN912
• Size : 20X80
• Material : فولاد خشکه

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 environments, significantly improving the bolt’s service life and reliability.

WEBSITE: 20X80 8.8 allen bolt Iran