Check the listing for details. Grade12.9 UNC 0#-80 2#-56 4#-40 HEX Socket Head Cap Screw Allen Socket Screws. Condition: New. Listed at 1.59 USD. SpecificationMaterial:CARBON SteelProduct name:Hexagon Socket cap Head ScrewsStandard:American systemSize:for example：M5 / 8-11 * 1/2 (thread diameter 5/8 inch tooth pitch 11 teeth length 1/2 inch) without head lengthSurface treatment:black Package description:Plastic bag / cartonProduct strength:12.9Bolt lengths are measured from the underside of the head.Package included:as your choose PLEASE UNDERSTAND THAT THE PICTURE SHOWN ABOVE IS A GENERIC PICTURE. IF YOU CANT FIND ANYTHING IN OUR STORE OR NEED ITEM IN LARGE QUANTITY ,PLEASE CONTACT ME Please note that positive and negative tolerance exist, if you really care about it,pls don't buy this screw.Reference specifications is composed by D * L (excluding head) Nuts’ size, flat washers’ size, retaining rings’ size etc.:are according to supporting the use of screw diameter (thickness) prevail.l 5. We only ship to confirmed EBAY addresses. Your EBAY address MUST MATCH your Shipping address.Address Changing pls be done before your payment!l 6. We offer 30 days money back guarantee return policy.l 7. We have always been trying to provide the best service and reliable products for every customer, however, accident may happen sometimes, please contact us to resolve any issue before leaving a negative feedback.l 8. Any query , Please contact us , thanks .Good day Best regards