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James Glen has for nearly forty years led the market in delivered value, quality, sales support and range, to continue our tradition of leading the market place James Glen has assembled what it considers to be the definitive Technical Manual on all aspects of our products and products associated with them. James Glen is very pleased to be able to present the 'Technical Manual' and trusts that you find it an easy to use and truly valuable resource.
The 'Technical Manual' is broken down into 6 sections:
Section 1 - General Information
  Includes a glossary of terms and metric / imperial conversion / comparison charts.
Section 2 - Dimensions
  Details standard dimensions for James Glen products.
Section 3 - Markings, Mechanical & Physical properties
  Covering tensile strength, hardness, proof loads, tightening torques and identifying markings.
Section 4 - Chemical Compositions
  Detailing Stainless Steel grade designations, steel and stainless steel chemical breakdowns.
Section 5 - Corrosion Resistance, Plating & Coating
  Covering common types and factors of corrosion and suitability of materials and coatings.
Section 6 - Weights
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Should you wish to contribute to the ongoing development of the manual we welcome your comments and suggestions such that the manual becomes more valuable to you and those that follow.
This Technical manual is intended to provide an understanding and recognition of the products stocked in the JAMES GLEN product range as well as some other of the more common standard fasteners; as such, it is not intended as a technical reference publication. Specification of the appropriate fasteners for a particular application is the realm of appropriately qualified engineers and this manual does not attempt to provide the basis for specification. The majority of the fasteners stocked in the James Glen product range are of the threaded type, which are essentially standard in nature and are tightened or assembled by rotational action. Many of these products have common features such as driving methods, threads, heads, points, materials, finishes etc. While others may have additional unique features such as nylon inserts, serrations, tamper resistance, welding lugs or may be an adjunct to the primary fastener such as nuts, washers and cotter pins. In this manual, we attempt to identify each of these features, the common and optional terminology for it, its use or purpose and the products likely to incorporate it, so that users of this manual improve their ability to quickly identify and describe a specific product.
We also attempt to provide a basic understanding of the mechanics of threaded fasteners, their materials and strength grades, how they work, how and where to measure them and which finishes are available, so that manual users are better equipped to provide superior customer service.
   
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