Frequently Asked Questions
A bolt is a threaded fastener mated with a nut. A screw has either pre-formed or self-made external threads. A stud is an externally threaded headless fastener. One end mates with a tapped component and the other with a standard nut| A bolt is an externally threaded fastener designed for insertion through holes in assembled parts, and is normally intended to be tightened or released by torquing a nut.| A screw is an externally threaded fastener capable of being inserted into holes in assembled parts, or mating with a preformed internal thread or forming its own thread, and of being tightened or released by torquing the head.| A bolt with threads on both ends, to be screwed permanently into a fixed part at one end and receive a nut upon the other; - called also standing bolt or stud.
Steel is the most common fastener material. Steel fasteners are available plain as well as with various surface treatments such as zinc plating, galvanization, and chrome plating. Steel fasteners are commonly available in 4 grades: Grade 2, Grade 5, Grade 8, and Alloy Steel.
There are several types of bolts and nuts available for different applications. Some common types include hex bolts and nuts (with a hexagonal head or nut), carriage bolts (with a rounded head and square neck), flange bolts (with an enlarged washer-like flange), and wing nuts (with wing-like projections for hand tightening).
Studs offer advantages in certain applications where it is more convenient or efficient to install or replace components. By using studs, it becomes easier to align and attach objects on one side while tightening the nuts on the other side. Studs also reduce the risk of damaging threaded holes in components during assembly or disassembly.
Studs are externally threaded fasteners that typically look like and operate as threaded bars. They're different from screws and bolts in the fact that they don't usually have a head that requires tightening - just continuous threading that can be paired with nuts
A bolt is a form of threaded fastener with an external male thread requiring a matching pre-formed female thread such as a nut. Bolts are very closely related to screws.
To prevent fasteners from loosening due to vibration or other factors, various methods can be employed. These include using locking washers, nylon-insert lock nuts, adhesive threadlockers, or prevailing torque nuts. These methods provide resistance to loosening and help maintain the integrity of the fastened joint.
Stud bolts are available in multiple diameters and lengths combinations, metric and imperial, and in a variety of materials from carbon steel to alloy, stainless and nickel alloys (common grades are: ASTM A193 B7, L7, B8, B8M, B16, Alloy 20, Monel, Hastelloy, Inconel, 17-4PH, titanium, etc.).
The reusability of bolts, nuts, studs, or fasteners depends on factors such as their condition, previous load exposure, and adherence to proper torque specifications. It is generally recommended to inspect the components for wear, damage, or deformation before reuse. It is advisable to follow manufacturer guidelines and industry best practices when determining the suitability for reuse.
King stud: On either side of a window or door, running from the bottom to top plate.| Trimmer or jack: On either side of a window or door, running from the bottom plate to the underside of a lintel or header.| Cripple stud: Either above or below a framed opening.| Post or column: Group of studs fastened side-by-side.