TA-VIGOR M8-1.25 x 30mm Hex Head Serrated Flange Bolts, 10.9 Grade Carbon Steel Flanged Hex Bolts, Heavy Duty Screws for Construction and Machinery, 10Pcs

• 【M8 Hex Serrated Design】Each bolt features a hex head with a built-in serrated flange for firm grip and resistance against loosening caused by vibration or torque
• 【High Strength Carbon Steel】Constructed from 10.9 grade carbon steel with a black oxide finish for excellent durability, corrosion resistance, and load-bearing performance
• 【Fully Threaded M8 x 30mm Shaft】These flange bolts offer precise 1.25mm pitch threading, ideal for secure fastening in structural, automotive and industrial environments
• 【No Washer Needed】The flanged hex head distributes load evenly across surfaces, helping to prevent surface damage and ensuring long-term fastening integrity
• 【Suitable for Various Applications】Perfect for assembling steel structures, heavy machinery, pipelines, DIY repairs and general construction projects using hex tools

APPLY TO – Hex head flange bolts are widely used in heavy-duty applications such as construction, steel framework assembly, pipeline installation, mechanical equipment repair, and automotive maintenance. Suitable for both industrial and DIY use. SPECIFICATION Product Name: Hex Head Serrated Flange Bolts Material: 10.9 Grade Carbon Steel, Black Thread Size: M8(D) x 30mm(L) / M8 x 1.18" Thread Pitch: 1.25mm / 0.049" Flange Diameter: 18mm / 0.71" Hex Width: 13mm / 0.51" Hex Thickness: 8.1mm / 0.32" Quantity Included: 10pcs x Hex Flange Bolts DESIGN – These bolts are fully threaded along the shaft, with precise, clean-cut M8-1.25 x 30mm threads for smooth installation. The integrated serrated flange under the hex head acts as a washer, distributing load and preventing loosening under vibration. ADVANTAGE – Made from high-strength 10.9-grade carbon steel, these bolts offer excellent load-bearing capacity, high hardness, and long-lasting wear resistance. The black oxide coating enhances corrosion protection and surface durability in tough environments.