IEEE C135.3-2001 pdf download IEEE Standard for Zinc-Coated Ferrous Lag Screws for Overhead Line Construction
1. Overview
1.1 Scope
This standard covers Zinc-coated steel lag screws of the fetter drive, gimlet point, and twist drive typescommonly used in overhead line construction.
1.2 Application
The lag screws conforming to this standard shall, in all respects, meet the basic dimensional and performancerequirements hereinafter stated. The text, specifications or standards references, and associated Figure lthrough Figure 5 supplement each other and shall be considered as parts of this standard.
Metric lag screws are not covered by this standard
2. References
The following standards shall be used in conjunction with this standard. When the following standards aresuperceded by an approved revision, the revision shall apply.
ANSI B18.2.1-1996,American National Standard for Square and Hex Bolts and Screws
ASTM A153/A153M-98, Standard Specification for Zinc-Coating on Iron and Steel Hardware~
3. Material
3.1 Bolts
All lag screws shall be made from one of the following materials:
Hot-headed lag screws shall be made from hot-rolled steel which has been produced by the openahearth, basic-oxygen, or electric-furnace process and which is of a grade and quality suitable to meetthe requirements of this standard.
6Cold-headed lag screws shall be made from steel cold-heading wire which has been produced by theopen hearth, basic-oxygen, or electric-furnace process and which is of a grade and quality suitable tomeet the requirements of this standard, and shall be reheated (stress relieved) if necessary to meetthe requirements of this standard.
4.Dimensions
All dimensions are in inches prior to zinc coating.
All lag screws shall be square or hex and in accordance with ANSI B18.2.1-19964, as specified in Figure 3and Figure 4.
Lag screw threads shall be machine-rolled or cut as specified in the data sheets.
5. Strength
Lag-screw heads shall be of sufficient strength to develop the body tensile strength of the screws. Failureshall occur in the shank or threaded section and not at the junction of the head and shank, In no case shall thestrength be less than the following:
IEEE C135.3-2001 pdf download
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