1/4 Inch-20x3/8 Inch Hex Socket Button Head Bolts Screws 50pcs<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Drive Type: Hex Socket; Head Style: Button Head; Material: 304 Stainless Steel</li><li>Package Content: 50(+/-2%) x Button Head Screws; Product Name: Button Head Screws; Thread Size: 6 x 9mm/1/4" x 3/8"(D*L)</li><li>Weight: 155g; Main Color: Silver Tone</li><li>Thread Pitch: 20G; Hex Key Width: 4mm/0.16"</li><li>Head Size: 10 x 5mm/0.4" x 0.2"(D*T); Overall Size: 10 x 14mm/0.4" x 0.55"(D*L)</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41KpOGFNmDL.jpg" noproxy>