uxcell 3/8 Inch-16x1 Inch Hex Socket Button Head Bolts Screws 5pcs Drive Type: Hex Socket; Head Style: Button Head; Material: 304 Stainless Steel Package Content: 5 x Button Head Screws; Product Name: Button Head Screws; Thread Size: 9 x 25mm/3/8" x 1"(D*L) Weight: 82g; Main Color: Silver Tone Thread Pitch: 16G; Hex Key Width: 6mm/0.24" Head Size: 16 x 5mm/0.63" x 0.2"(D*T); Overall Size: 16 x 30mm/0.63" x 1.2"(D*L)