370pcs/12.9 grade black hex socket head cap screws, nuts, and flat washers set; DIN912 metric bolt fastener set; M4 and M5 bolts

Head Style：Socket High-concerned chemical：None Model Number：370pcs DIY Supplies：Metalworking Origin：Mainland China Item Type：Nut & Bolt Sets

High-concerned chemical: None Model Number: 370pcs DIY Supplies: Metalworking Origin: Mainland China Item Type: Nut & Bolt Sets