Standard Specification for Aluminum Transmission Tower Bolts and Nuts

ABSTRACT
This specification covers aluminum transmission tower bolts and nuts. Bolts shall be manufactured from alloy 2024 and nuts from alloy 6061 or 6262, and shall be cold formed, hot formed, or machined formed. Alloy materials for bolts and nuts shall conform to the chemical requirements of this specification. Bolts and nuts shall conform to the required tensile strength, dimensions, workmanship, finish, appearance, marking, packaging, and shipping. Test methods shall include chemical analysis, wedge tension test, shear test, and proof-stress test.
SCOPE
1.1 This specification covers aluminum structural bolts and nuts for use in the construction of aluminum transmission towers, substations, and similar aluminum structures.  
1.2 Diameters of bolts and nuts furnished to this specification are 5/8, ¾, and 7/8 in.  
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

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Publication Date
31-Mar-2012
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ASTM F901-01(2012) - Standard Specification for Aluminum Transmission Tower Bolts and Nuts
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: F901 −01 (Reapproved 2012)
Standard Specification for
1
Aluminum Transmission Tower Bolts and Nuts
ThisstandardisissuedunderthefixeddesignationF901;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope F1470 Practice for Fastener Sampling for Specified Me-
chanical Properties and Performance Inspection
1.1 This specification covers aluminum structural bolts and
4
2.2 ASME Standards:
nuts for use in the construction of aluminum transmission
B1.1 Unified Inch Screw Threads (UN and UNR Thread
towers, substations, and similar aluminum structures.
Form)
1.2 Diameters of bolts and nuts furnished to this specifica-
B18.2.1 Square and Hex Bolts and Screws (Inch Series)
5 3 7
tion are ⁄8, ⁄4, and ⁄8 in.
Addenda A
B18.2.2 Square and Hex Nuts
1.3 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical 2.3 Military Standard:
MIL-STD-A-8625 Anodic Coatings for Aluminum and
conversions to SI units that are provided for information only
5
and are not considered standard. Aluminum Alloys
3. Ordering Information
2. Referenced Documents
2
3.1 Orders for bolts and nuts under this specification shall
2.1 ASTM Standards:
include the following:
B565 Test Method for Shear Testing of Aluminum and
3.1.1 Quantity (number of pieces of each item and size);
Aluminum-Alloy Rivets and Cold-Heading Wire and
3.1.2 Name of item;
Rods
3.1.3 Size (diameter, threads per inch, length);
D3951 Practice for Commercial Packaging
3.1.4 Alloy number;
E29 Practice for Using Significant Digits in Test Data to
3.1.5 Shipment lot testing, as required (see Supplementary
Determine Conformance with Specifications
Requirements S1);
E34 Test Methods for Chemical Analysis of Aluminum and
3.1.6 Source inspection, if required (see Section 14);
Aluminum-Base Alloys
3.1.7 Certificate of compliance or test report, if required
E55 Practice for Sampling Wrought Nonferrous Metals and
(see Section 16);
Alloys for Determination of Chemical Composition
3.1.8 Additional requirements, if any, to be specified on the
E101 TestMethodforSpectrographicAnalysisofAluminum
purchase order (see 4.2.1, 4.2.3, 8.2.1, 8.2.2, 9.2, 12.1, and
and Aluminum Alloys by the Point-to-Plane Technique
3
13.1);
(Withdrawn 1996)
3.1.9 Supplementary requirements, if any; and
E227 Test Method for Optical Emission Spectrometric
3.1.10 ASTM specification and year of issue.
Analysis of Aluminum and Aluminum Alloys by the
3
Point-to-Plane Technique (Withdrawn 2002)
NOTE 1—Example: 10 000 piecesAluminum Transmission Tower Bolt,
F606 Test Methods for Determining the Mechanical Proper-
0.750-10 by 2.00 in., Alloy 2024-T4, Furnish Certificate of Compliance,
Supplementary Requirement S2, ASTM F901–XX.
ties of Externally and Internally Threaded Fasteners,
Washers, Direct Tension Indicators, and Rivets
4. Materials and Manufacture
4.1 Materials—Bolts shall be manufactured from Alloy
1
This specification is under the jurisdiction of ASTM Committee F16 on
2024 and nuts from Alloy 6061 or 6262. The materials
Fasteners and is the direct responsibility of Subcommittee F16.04 on Nonferrous
chemical composition shall be capable of developing the
Fasteners.
mechanicalpropertiesrequiredbyTable1,wheninthefinished
Current edition approved April 1, 2012. Published May 2012. Originally
approvedin1984.Lastpreviouseditionapprovedin2007asF901 – 01(2007).DOI:
condition.
10.1520/F0901-01R12.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Available from IHS, 15 Inverness Way East, Englewood, CO 80112, http://
Standards volume information, refer to the standard’s Document Summary page on www.global.ihs.com.
5
the ASTM website. Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
3
The last approved version of this historical standard is referenced on Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://
www.astm.org. dodssp.daps.dla.mil.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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F901 − 01 (2012)
TABLE 1 Tensile Strength of 2024-T4 Bolts and Proof Loads for TABLE 3 Sample Size and Acceptance for Mechanical Property
A
6061-T6 and 6262-T9 Nuts Tests
Bolt Size, in. Tensile Strength, min, lbf (kN)
Acceptance Criteria
5
⁄8 12 400 (55) Number of Pieces in Lot
Number of Acceptance Rejection
3
⁄4 18 400 (82)
Tests Number Number
7
⁄8 25 400 (113)
50 and under 2 0 1
A
Based on a tensile unit stress of 55 000 psi (380 MPa
...

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