WebProduct Catalog Metric hex bolts Hex bolts have hexagonal heads and machine threads for use with a nut or in a tapped hole. Also known as hex cap screws or machine bolts. Resources About bolt grades About fastener materials See also Hex bolts Bolts with hexagonal heads and machine threads for use with a nut or in a tapped hole. WebJan 21, 2024 · The most common type of bolt head types includes square, hex, slotted hex washer, and socket cap. The earliest bolt heads in use were the square heads. Square heads consist of a square indentation on …
Hex Socket Head Cap Screws - Screws & Bolts
WebSep 6, 2024 · SAE bolt head markings use a series of raised dashes to communicate strength. How to identify grade 8 bolts? See the chart below. Metric. Metric bolt grades are known as “property class,” and are set by the International Standards Organization . This system uses two numbers separated by a dot expressed in raised or depressed numbers … WebEnginetech Head Bolts. Many later model engines require torque-to-yield (TTY) head bolts that are only good for one-time use and should be purchased every time you remove a cylinder head. These bolts must be … redo architects
Metric Flanged Hex Head Cap Screws McMaster-Carr
WebHigh-Strength Metric Class 10.9Steel Flanged Hex Head Screws. These metric screws are at least 25% stronger than medium-strength steel screws. Use them in high-stress … WebJun 9, 2024 · The number markings are engraved on the top or side of the bolt head. Common metric classes are 5.8, 8.8, 10.9, and 12.9. The higher the numbers are, the stronger the material of the fastener is. The number that appears before the decimal, when multiplied by 100, will provide the approximate minimum tensile strength of the bolt. WebBolt Grade Markings & Strength Chart - Inch Steel Bolts. Head Marking. Bolt Grade / Specification. Material. Nominal Size (Inch) Proof Load psi. Tensile Strength Min psi. … rich constantine