Product Description：
Product Name: 304 Square Head Bolt
Model: 304 Square Bolt
Material: 304 Stainless Steel
Such As:M6*20(Thread Diameter 6mm*Length 20mm) Excluding Head Thickness
Thread Diameter: M4(4mm) / M5(5mm) / M6(6mm) / M8(8mm) / M10(10mm) / M12(12mm)
Length: 8mm-100mm
Product Strength: Grade 6.8
Head Type: Square Head
Customer service online time：
Our working hours are from 8:30 am to 17:30 pm Beijing time Monday to Saturday，(excluding Chinese holidays and special circumstances).
If the customer service does not reply to the message in time, please be patient, we will reply you immediately when we see the message.
Issue Resolution：
If you encounter any problems with your order, we are here to help. Please reach out to us, and we will do our best to address and resolve any issues in a timely manner.
