Flat Head Cap Screw Black Steel 1/2-13 * 9" Grade 8 [Cup Point] [Allen Drive] asme_b18-5 Coarse threads are the industrystandard:choose

Coarse threads are the industrystandard:choose these screws if you don’t know the pitch or threads per inch

The screws have a thread of 1-8 and a length of 8

They include a tag that shows the material

use these screws with Grade 9 nuts and screws

Flat Head Cap Screw Black Steel 1/2-13 * 9" Grade 8 [Cup Point] [Allen Drive] asme_b18-5 Coarse threads are the industrystandard:chooseMade from alloy steel, these screws are nearly twice as strong as stainless steel flat head screws. They're angled under the head to sit flush within countersunk holes. Length is measured from the top of the head. The screw has a length of 9" and a thread of 1 2 13. Black oxide alloy steel screws have mild corrosion resistance in dry environments.