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  1. Thread Pitch Chart - Portland Bolt

    Standard thread pitch explanations and a chart showing number of threads per inch for National Coarse, National Fine and 8 Pitch threads.

  2. Thread & Needle Recommendation Guide (PDF) - Sailrite

    Discover the perfect thread and needle pairings for any DIY project with Sailrite's comprehensive Thread & Needle Recommendation Guide. Ensure professional results with expert tips on selecting the right …

  3. Understanding Thread Sizing - Sailrite

    Choosing the right thread size is essential for strong, long-lasting stitches. Learn how to select the best thread size for your sewing project, whether it's upholstery, marine or outdoor applications. Get …

  4. What are the sizes of crochet thread? Check out our size guide.

    Jan 24, 2020 · What are the different sizes of crochet thread? We explain the sizes of crochet thread and give you a sizing table in this quick post on crochet thread size.

  5. The Ultimate Guide to Sewing Thread - Sailrite

    Discover everything you need to know about sewing thread in this ultimate guide. Learn about different thread types, twists and how they impact your sewing projects. From basic terms to expert tips, …

  6. Selecting the Right Thread Material - Sailrite

    Discover how to select the right thread for your sewing projects, with options tailored to durability, UV resistance and strength. This guide helps you choose the ideal thread material to ensure long …

  7. Structural Bolts - Portland Bolt

    Heavy hex structural bolts range from 1/2" to 1-1/2" diameter and are manufactured to ASTM A325 and A490 specifications.

  8. Clevises - Portland Bolt

    When ordering clevises, there are several pieces of information that need to be specified including clevis number, finish, diameter of tap, thread direction, grip, and pin. Clevis Number: The clevis number will …

  9. Carriage Bolts - Portland Bolt

    Bolt lengths > 6″: Thread length = (2 X diameter) + 1/2″ Note: Most imported stock carriage bolts have a thread length of 6″ and are fully threaded when the bolt length is 6″ or shorter.

  10. Selecting a Sewing Machine Needle - Sailrite

    Ensure perfect stitches with the right sewing machine needle! Learn how to choose the best needle type and size for your fabric, thread and project needs. Get expert tips for upholstery, marine and heavy …