24906573
Description
Flashcards by Taylor Kee, updated more than 1 year ago
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Created by Taylor Kee
over 3 years ago
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| Question | Answer |
| Carriage bolts have smooth, domed heads with a square section underneath that pulls into the material to prevent spinning during installation. | |
| Lag Bolts, or lag screws are large wood screws with hex heads. Typically used for wood construction. | |
| Wood Screw- has large threads and a smooth shank for pulling two pieces of material together. Can be used in wood and soft materials. | |
| Sheet metal screw- has share points and threads and are design to be driven directly into sheet metal. | |
| Hex bolts, or hex cap screws, are used in machinery and construction. Can be used with a nut, or in a tapped hole. Fully threaded hex bolts are also known as tap bolts. | |
| Socket screws are machine screws with an internal hex socket (Allen) drive. Longer lengths may have a smooth shank. | |
| Machine screws are fully threaded for use with a nut or in a tapped hole. Certain types are some- times referred to as stove bolts. | |
| Zinc Plated Steel | Relatively inexpensive, with the zinc plating providing moderate corrosion resistance suitable for indoors or otherwise dry conditions. Color is either a blue-ish tint or yellow depending on the exact process. |
| Hot-dipped galvanized steel | has a thicker zinc coating for better corrosion resistance, making it suitable for outdoor use. Because of the thick plating, only galvanized nuts and washers will fit galvanized bolts. The coating typically has a rough, dull grey finish. |
| Stainless steel | offers good corrosion resistance, making it suitable for outdoor use and marine applications, but is more expensive than zinc plated |
| Chrome and nickel plated steel | are smooth and polished for appearance. The plating offers moderate corrosion resistance. |
| Brass and bronze | are copper alloys with good corrosion resistance. More expensive than steel, these materials are typically used for decorative applications. Colors can vary significantly. |
| Alloy steel | Is highly hardened and usually black oxide and/or oil coated, offering little corrosion resistance. |
| Plow Bolts Similar to carriage bolts but used for attaching the cutting edge of a plow to the plow blade. | |
| Eye Bolts A bolt with a circular ring on the head end. Used for attaching a rope or chain. | |
| Eye Lags Similar to an eye bolt but with wood threads instead of machine thread. | |
| Phillips and Slotted drives are common in screws, but prone to cam-out (stripping). | |
| Frearson and Pozidriv are similar to Phillips, but less prone to cam-out. | |
| Hex socket (Allen) drives are compact and easy to drive, but prone to cam-out | |
| Star and Square drive are resistant to cam-out and can be installed single- handed. | |
| Hex heads are typically used with larger bolts and screws, and tightened with a wrench. | |
| Oval heads are a low domed and countersunk heads, used primarily for decorative purposes. | |
| Flat heads are installed in a countersunk hole for a flat surface. | |
| Round heads are tall domed heads, used primarily for decorative purposes. | |
| Pan heads have a slightly domed head that sits above the surface. | |
| Truss heads are slightly domed, with a wide head for an extra large surface area | |
| Socket heads are narrow with a socket drive, and knurled or smooth sides. | |
| Button heads feature a medium dome. Typically used with a hex socket drive. | |
| U-Bolts Bolts in U shape for attaching to pipe or other round surfaces. Also available with a square bend. | |
| Rivets Used to join sheets of metal. During installation the rivet body is deformed to perma- nently lock in place. Blind rivets can be installed without access to the back side of the material. | |
| Cotter or split pins have two tines which are bent apart to hold them in place. | |
| Sex bolts (a.k.a. barrel nuts or Chicago bolts) have a female thread and are used for through bolting applications where a head is desired on both sides of the joint. | |
| Mating Screws Mating screws have a shoulder that matches the diameter of the sex bolts they are used with. | |
| Hanger Bolts Hanger bolts have wood thread on one end and machine thread on the other end | |
| Set Screws Machine screws with no head for screwing all the way into threaded holes. | |
| Timber Bolts Machine threaded fasteners with a wide domed head. The head has fins underneath that prevent the bolt from spinning during installation. Typically used in wood. | |
| Spring Toggle Wings Non-removable fasteners that expand behind the material, e.g. inside a wall, for a secure grip. | |
| Stud Anchors A.k.a. Wedge Anchors. One piece expansion bolts for heavy duty fastening into stone or solid concrete. | |
| Sleeve Anchors Heavy duty masonry anchors. Does not require a solid base material for installation. | |
| Lag Shields Medium dury anchors for use in concrete, brick or mortar. Use with a lag bolt. | |
| Machine Screw Anchors A two-piece machine thread anchor for use in stone, brick, or concrete. | |
| Double Expansion Sleeves Expansion anchor for masonry that ensures contact along the length of the hole. | |
| Drop-in Anchors A heavy duty machine thread anchor for concrete or stone | |
| Concrete Screws Used in concrete, brick or block. A quick and easy way to fasten in light to medium duty applications | |
| Kaptoggle® A non removable anchor commonly used for hollow spaces such as drywall and masonry block. | |
| Plastic Toggle When these anchors are driven in they expand inside the hole for a secure grip. Drill hole the same size as the anchor. Non-removable. | |
| Hollow Wall Anchors A.k.a. Molly Bolts. Used for light duty anchoring in drywall or other hollow walls. | |
| Wood Screw Anchors This anchor is made of lead and can be used with wood screws or sheet metal screws. | |
| Nail Drive Anchors Non removable anchors that expand inside the hole when the nail like pin is driven | |
| Self Drilling Drywall Anchors Quick-install plastic anchors used in drywall with sheet metal screws | |
| Anchor Bolts L shaped, machine threaded anchors. Typically embedded in concrete when it is poured. | |
| Conical Anchors Plastic anchors used with sheet metal screws. Can be used in most materials. |
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