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Screw And Bolt Hole Guides
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  • Short Run Pro - Screw and Bolt Guide

    A screw by definition is not a bolt. A bolt passes through a hole of a larger diameter than its thread and is held in place by a nut or similar device. It is not designed to be turned. A screw is a shaft with a helical groove. The thread essentially mates with the helix in the material it is turned through. The screw may be used with a part that has a mating helix already placed in the material (called a tapped hole) or may be a self tapping screw which creates the helix as it is turned in the material.

    The glossary below gives you the basic information on various types screws and bolts

    • A hex cap screw has a protruding hexagonal head, designed to be driven by a spanner or wrench.
    • A socket cap screw has a hexagonal recessed drive, usually with a cylindrical head, but can also be found with a rounded button head or a countersunk flat head.
    • Wood and chipboard screws have a tapered shaft. A hole of about the diameter of the shaft, but less than the diameter of the thread, is often drilled into the wood; screws can be driven into undrilled wood, but there is a risk of splitting the workpiece. Chipboard is less likely to split. A hole can be drilled in brick, concrete, or other hard materials, and a wall plug inserted; a woodscrew can then be driven into the plug.
    • Lag screw, lag bolt or coach screw refers to a large wood screw with a head, square or hexagonal, driven by a wrench rather than a screwdriver.
    • A Machine screw has a cylindrical shaft, threaded its entire length, and fits into a nut or a tapped hole.
    • Self-tapping screws or thread cutting screws have sharp threads that cut into a material such as sheet metal or plastic. They are sometimes notched at the tip to aid in chip removal during thread cutting.
    • A Self-drilling screw is similar to a self-tapping screw, but has a drill-shaped point to cut through the material without prior drilling.
    • Thread rolling screws have a lobed (usually triangular) cross section. They form threads by pushing outward during installation. They may have tapping threads or machine threads.
    • A Drywall screw is a specialized self-tapping screw designed to bind drywall to wood or metal studs, but it has proven to be a versatile construction fastener.
    • A Set screw, used to prevent loosening due to vibration, is available with thumb screw, square head, Hex head (inset socket) and, most commonly, headless (a grub screw in UK parlance, designed to be inserted flush with or below the surface of the work piece). Alternatively defined to be a screw whose thread reaches the head (if any), as opposed to a bolt.
    • Dowel screw is a wood screw with two pointed ends and no head, used for making hidden joints between two pieces of wood.
    • A stud is similar to a bolt but without the head. Studs are threaded on both ends. In some cases the entire length of the stud is threaded, while in other cases there will be an unthreaded section in the middle. It may be anchored in concrete, for example, with only the threads on one end exposed. (See also: screw anchor, wedge anchor.)
    • An Eye bolt used for attaching cables to a surface.
    • A carriage bolt or coach bolt has a domed or countersunk head, and the shaft is topped by a short square section under the head. The rib neck carriage bolt has several longitudinal ribs instead of the square section, to grip into a metal part being fixed.
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Short Run Pro is proud to say that all our custom metal products including our brackets, steel angle, braces, supports, covers, housings, machined parts and other metal parts are made right here in the United States of America. When you order from SRP you can know that your parts are being made to USA quality standards and your satisfaction in mind.

Short Run Pro has developed state of the art design software to help you easily design brackets for your custom use. With the aid of Short Run Pro you can quickly draw out your requirement, look at your design in 3-D and email your design in many available formats to any email account for confirmation purposes. Short Run Pro Custom Design brings you the ability to design unique brackets, signs, industrial plates and covers without investing huge amounts in software systems to design your custom metal need. With Short Run Pro you can design your own special metal brackets to replace costly OEM fabricated parts. Short Run Pro also has custom drawing services available for Solidworks.

Short Run Pro needs a lead time of up to 14 business days to make your product. If you need the part sooner, the order can be expedited for an additional cost. We can make 1 part or thousands of metal brackets. We keep your custom bracket on file in our database so you can access the drawing in the future. Short Run Pro also will archive your drawing for use and reference in OEM engineering prints and the software used on Short Run Pro is compatible with most engineering drawing formats.

Short Run Pro offers a full line of standard run bracket designs to choose from in our catalog section. Should you require a special bracket, we can offer you design assistance to develop the bracket to your special needs. We can provide stamped metal brackets or laser cut metal fabrications. We provide black oxide finish or high quality black powder coat finish. We can produce your design out of many different material specifications including: carbon steel JIS S45C, JIS SS4400 , stainless steel JIS SUS304, aluminum alloys of different makes, brass JIS C2800, and much more! We produce quality, accurate parts to your specifications with excellent turn around time.

Short Run Pro specializes in the following metal fabrications: Angle Brackets, machined brackets, fabricated brackets, wall mount bracket, laser part, stamped part, laser cut part, mig welded part, bracket components, galvanized bracket, stamped machine part, sheet metal part, prototype design, formed parts, sheet metal forming, sheet metal stamping, sheet metal bending, proto, custom sheet metal, metal parts, steel brackets, press brake forming, machined parts, aluminum bracket, and more. Short Run Pro provides quality service and quality machined parts with your complete satisfaction in mind. Thank you for visiting our website and please let us know if we can help in anyway ? we want your business.

The information contained within all fabrication drawings created by Short Run Pro, LLC have not been verified for engineering purposes. Short Run Pro, LLC performs drawing and fabrication service based on customer specifications and cannot substantiate the function and loading capabilities of customer designs. An independent engineering firm should be consulted to verify use and loading calculations of SRP drawing designs.

Short Run Pro is proud to say that all our custom metal products including our brackets, steel angle, braces, supports, covers, housings, machined parts and other metal parts are made right here in the United States of America. When you order from SRP you can know that your parts are being made to USA quality standards and your satisfaction in mind.