what are the different grades of hex cap screws
Sep 06, 2019 · Socket Head Cap Screws made from alloy steel are typically manufactured to a higher strength than SAE Grade 8:180 ksi tensile strength for fasteners up to 1/2 inch, 170 ksi for larger sizes (ASTM A574, p. G-34). For many more head markings and their corresponding specifications, see here. Metric ISO Marking
Gr - Grade, refers to strength level of screw or nut (ex:Grade 2, Grade 5 or Grade 8) Hardened - A product that has been heat treated HB - Hex bolt or Hardness reading measured on the Brinell Scale H.T - Heat Treated HCS - Hex Cap Screw or High Carbon Steel H.D.G. - Hot Dip Galvanized Chrome Hex Cap Screws Gainesville Atlanta Northeast Grade 2 Hex Cap Screws. Grade 2 Hex Cap Screws Plain; Grade 2 Hex Cap Screws Zinc; Grade 5 Hex Cap Screws. Grade 5 Fine Thread Zinc; Grade 5 Coarse Thread Zinc; Grade 8 Hex Cap Screws (Grade 8 Bolts) Grade 8 Coarse Thread Zinc Yellow; Grade 8 Fine Thread Zinc Yellow; L9 Hex Bolt; Fully Threaded Tap Bolts. Grade 2 Tap Bolts; Grade 5 Tap Bolts; A307 Galvanized Hex Bolts
Hex Cap Screw Material / Finish Options:Grade 2 / Zinc Grade 2 / Black Oxide Grade 5 / Plain Grade 5 / Zinc Grade 8 / Plain Grade 8 / Zinc Yellow 18-8 Stainless Steel 316 Stainless Steel Silicon Bronze Fastener Handout - University of WisconsinMadisonScrew threads serve three basic functions in mechanical systems; 1) to provide a clamping force 2) to restrict or control motion, and 3) to transmit power. Geometrically, a screw thread is a helical incline plane. A helix is the curve defined by moving a point with uniform angular and linear velocity around an axis. The distance the
There are several grades of bolts but the three common grades for SAE are 2, 5 and 8. The common class (grades) for metric are 5.8, 8.8, 10.9 and 12.9. Each grade has a specific bolt strength. No matter the system used to grade the bolts, the higher the number means the stronger the bolt. Hex Bolt Dimensions & Hex Cap Screw Dimension ChartAnd regardless if you are looking for a grade 5 hex cap screw or a grade 8 hex cap screw, their dimensional measurements will be identical. Only the material that they are made from is different. However, make sure you are comparing apples to apples, because Hex Bolts and Hex cap screws are different!
From screws and nails to anchors and hex bolts, Lowes has all the fasteners you need to safely complete both household tasks and heavy-duty jobs. Hex bolts, also known as hex cap screws, fasten wood to wood or metal to wood. Hex bolt heads are commonly used in residential and commercial applications for both machinery and construction projects. Hex Flange Head Cap Screw Cap Screws & Hex Bolts Hex head cap screws are typically used to create a bolted joint, in which a threaded shaft exactly fits a corresponding tapped hole or nut. Grade 2 screws tend to be used in construction for joining wood components. Grade 5 screws are used in small engines. Grade 8 screws provide high tensile strength.
Tight-Spot Hex Head Screws. A high -strength alternative to blind rivets, these Class 8. 8 steel screws can be used when only one side of the material is accessible. When the screw is tightened, the attached nut expands the sleeve to create a strong clamping force on the back of the material. Hex head Cap Screw Supplier Hexagon Socket Head Cap Hex cap screws and hex bolts, with their hexagonal heads and machine threads, are ideal for construction projects, repair applications, woodworking, and other applications. Value Fasteners is a hex head cap screw supplier providing a variety of grades and sizes to
ISO 4017 specifies the characteristics of hexagon head screws with threads from M1,6 up to and including M64, of product grade A for threads M1,6 to M24 and nominal lengths up to and including 10 d or 150 mm, whichever is the shorter, and product grade B for threads over M24 or nominal lengths over 10 d or 150 mm, whichever is the shorter. Socket Cap Screws - Westfield Fasteners LtdSocket Head Cap screws are a more modern alternative standard machine fastener to the standard hexagon headed bolt or setscrew, as found on much modern machinery. A hex key (otherwise known as an Allen key) is required to fit these fasteners. Material Key. A2. A2 Stainless Steel - also known as grade 304 or 18/8.
Aug 14, 2017 · Socket Head Cap Screw, Grade 8, Zinc The information below lists the required dimensional, chemical and physical characteristics of the products in this purchase order. If the order received does not meet these requirements, it may result in a supplier corrective action request, which could jeopardize your status as an approved vendor. Socket Head Cap Screws - MSC DirectA standard inch series socket head cap screw is 20% stronger than a Grade 8 hex head cap screw and 50% stronger than a Grade 5 hex cap screw. The tensile strength is a minimum 180,000 psi for sizes 1 ? 2 diameter and smaller and 170,000 psi for 5 ? 8 diameter and above (Tensile strength may vary according to heat treatment and manufacturer.)
Fully threaded, headless screw with a hexagonal drive at one end and a cup-shaped indentation at the other. Fully-threaded, headless screw with a hex drive at one end and a protruding tip with a flat surface at the opposing end. Possesses an oval-shaped point on the end opposing the flush hex drive. Stainless steel hex cap screw markings Fasteners, bolts Stainless steel hex cap screw markings Inch. 18-8 , which can be 302, 303 or 304 stainless, refers to 18% chromium and 8% nickel content. 316 is more corrosion resistant than 18-8 because it contains molybdenum, but in inch fasteners both have the same tensile strength. Metric
Scope. 1.1 This specification covers the requirements for stainless steel bolts, hex cap screws, and studs 0.25 to 1.50 in., inclusive, in nominal diameter in a number of alloys in common use and intended for service applications requiring general corrosion resistance. 1.2 Seven groups of stainless steel alloys are covered, including fourteen TEK® Self-Drilling Screw Buying Guide All Points FastenersHex washer head:They have a built-in washer at the head to distribute the load and weight over a wide area. The hex drive is the preferred drive of most contractors doing roofing projects or other kinds of heavy-duty metal installations. Modified truss:These screws have an oversized domed head with a flange, like an integral washer.
Jan 15, 2021 · In this article, well discuss several different relevant aspects of these fasteners, including:tensile strength; stainless steel (grade B8) vs. carbon steel (grade B7 & B16) heavy hex nuts (2H nuts, or Grade 4 & 7 nuts) But well start with an overview of the standards governing the use of nuts and bolts in industrial applications. What is a Cap Screw? (with pictures) - Info BloomA variety of cap screw heads are available to allow different tools to be used for tightening or loosening the screw. The head has a larger diameter than the threaded portion to provide a positive mechanical stop when tightening the screw, and to allow the head to be shaped to accept a specific type of tool.
Grade 2 (proof strength:<=3/4:55 ksi >3/4:33 ksi) Grade 5 (proof strength:85 ksi) Grade 8 (proof strength:120 ksi) alloy socket head (ASTM A574) <=1/2:153 ksi >1/2:144.5 ksi #0-80.0600.00180:59.4:91.8:129.6:165.24 #2-56.086.00370:122.1:188.7:266.4:339.66 #2-64.086.00394:130.02:200.94:283.68:361.692 #4-40.112.00604:199.32:308.04:434.88:554.472 #4-48.112.00661