uxcell M12 x 30mm Grade 8.8 Metric Hex Flange Screws Bolts 10 Pcs Head Style: Hex Head; Material: Zinc Plated(Grade 8.8); Package Content: 10pcs x Hex Flange Bolt Product Name: Hex Flange Bolt; Thread Size: M12x30mm/0.47"x1.2"(D*L); Weight: 435g Coating: Zinc; Main Color: Silver Tone; Total Length: 40mm/1.6" Battery Included: No; Thread Pitch(Coarse Thread): 1.75mm; Flange Diameter: 24mm/0.94" Hex Width: 17mm/0.67"; Head Thickness: 10mm/0.4"