A bag of 10 4-40x1/2 (12.7mm) hardened socket head cap screw. These have a 1/2" (12.7mm) long shaft measured from under the head to the end.
Note: It is recommended to use Loctite on all screws that fix into metal to inshore a firm fixing.
Grade 12.9 (176,900 psi!!!)
Your S & R Text. Could be a copy of what is in shipping.php, a precis of it, a link to it, etc. Whatever you decide you need...