Grade 9 Yellow Chromate Alloy Steel Hex Bolt, 7/16"-14, 6" Length (Pack of 25)
 Price with discount: $56.95 | |
Product Details
Dear visitor! This website has been designed to help you find THE BEST PRICE. When you are ready to buy, your payment will be processed through one of the most TRUSTED SUPPLIERS directly. |
| Not what you're looking for? Try smart custom search: |
Customer Review
Grade 9???
Amazon needs to be more specific here - these are L9 fasteners that are part of a branded system. They indeed are 180ksi fasteners, higher than grade 8, and they have oversized bolt heads on them. They are really pretty beefy, but in case you scout around on the internet trying to find what these are, google "L9 fastener" rather than "grade 9" (which just gives you the metric 12.9 spec)
Top to learn more
Product Description
Hex bolts have a chamfered point to aid insertion into a tapped hole or nut. Length is measured from under the head.
Grade 9 fasteners (also referred to as Grade L9) are extremely strong and are made of a high-grade alloy steel. They are grade-marked on the head with nine radial lines, a dot, and the characters L9, and have a minimum tensile strength of 180,000 psi. Yellow Zinc Chromate fasteners have been coated with zinc and with yellow chromate. As a result they offer corrosion resistance that is slightly higher than clear zinc.
Hex head fasteners can be driven with simple wrenches, and require minimal clearance above the fastener because they can be driven or loosened from the side.
A threaded fastener's size name includes information about the major external diameter, followed by the threads per inch, which indicates if it is coarse or fine. Coarse threads are better when working with brittle materials; they are sturdier and are easier to thread and unthread compared to fine. Coarse threading also allows for thicker coatings and platings. Top to learn more