18-8 Stainless Steel Shoulder Screw， Plain Finish， Socket Head Cap， Hex Socket Drive， Standard Tolerance， 4 mm Shoulder Diameter， 6 mm Shoulder Length， M3-0.5 Threads， 4.5 mm Thread Length， Made in US， (Pack of 1)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>18-8 stainless steel provides good corrosion resistance and strength， while the plain surface has no finish or coating</li><li>Socket cap head is round with a flat top and high profile that provides high strength</li><li>Hex socket drive has a hexagonal slot that turns using an Allen key driver</li><li>Made in USA</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41Ejhs2U4oL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41QjboBhmTL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41gfKdXkqXL.jpg" noproxy>