Overview: This handbook provides detailed information on thread gages, including their prices, specifications, usage instructions, and ordering details. It aims to assist buyers in effectively selecting and using various types of thread gages.

Ordering Information: The document outlines the ordering process for thread gages, emphasizing the need to specify size, pitch, class, style, and other relevant details. It also mentions quantity discounts for assorted sizes.

Types of Thread Gages: Several types of thread gages are covered, such as Hi-Low Thread Setting Plug Gages, Thread Plug Gages, Thread Ring Gages, and Metric Thread Plug Gages. Each type is described with its specific use and advantages.

Usage Instructions: Detailed instructions are provided for using different gage designs like Reversibles, Taperlocks, Thread Setting Plugs, and Thread Rings, highlighting the importance of proper handling for accuracy and longevity.

Specifications and Standards: All gages conform to ANSI/ASME Screw Thread Standards for Class X gages, with 'W' Tolerance available upon request.

Quality Control: The document emphasizes selecting the proper gage for quality control to maintain accuracy and efficiency in production lines.

Special Features: Special gages are available, with same-day shipment for in-stock items. The benefits of using Hi-Low Setting Plugs for quick calibration checks are also discussed.

Certification: All Alameda Thread Plug Gages come with certification guaranteeing accuracy and traceability to the National Institute of Standards and Technology.

Thread Measurement and Gaging: The use of Go and Not Go thread ring gages is discussed to ensure correct lead and form of threads, with Go gages ensuring size is smaller than the maximum permitted pitch diameter and Not Go gages ensuring size is larger than the minimum permitted pitch diameter.

Helical Coil and Taperlock Style: Members are available in taperlock style, class 28 or 38, and can be either Go or Not Go, with special stock items mentioned.

Pitch Diameter Measurement: A general formula for determining the pitch diameter of symmetrical threads is provided, simplified for large lead angles.

Pipe Thread Gages: Specifications for NPTF, ANPT, and NPT pipe thread plug and ring gages are outlined, including permissible tolerances for maximum, basic, and minimum pitch diameters.

Quality Control and Gage Selection: Two methods for inspecting threaded parts are discussed: measuring individual elements and using Go and No Go gages for interchangeability and function.

Gage Wear and Maintenance: The impact of wear on gages is highlighted, noting that Go gages wear faster due to full engagement, potentially leading to out-of-tolerance conditions.

Overview of Gage Selection and Measurement: The document discusses challenges in achieving absolute accuracy in gage manufacturing due to inherent tolerances and wear over time, emphasizing the importance of selecting the appropriate gage based on factors like the number of parts to be gaged, material, and design.

Tolerance in Gage Selection: Using basic gages for maximum and minimum part tolerance is costly due to short wear life. Working gages with Y or high limit X tolerance are suggested for machining checks, while inspection gages with low limit X or W tolerance are used for acceptance checks.

Measurement of Thread Work Plug Gages: Accurate measurement involves examining elements like major diameter, pitch diameter, minor diameter, thread flank angle, and lead.

O.D. and P.D. Measurement: Major diameter measurement is straightforward, while pitch diameter measurement is more complex. The "three wire" method is recommended for accuracy.

Thread Wire Standards and Pricing: Deltronic Thread Wires meet or exceed various ANSI/ASME standards, with prices listed for different thread wire libraries and sets.

Specifications and Use Information: Detailed specifications for thread wire sets are provided, including size, roundness, surface finish, hardness, and straightness.

Alameda Gage Products: Alameda, a division of Deltronic Corporation, offers a wide range of thread gages, including thread plug gages, thread ring gages, and special thread gages.