INCH-POUND
MIL-DTL-45912B
6 August 2013
SUPERSEDING
MIL-B-45912A
8 August 1969
DETAIL SPECIFICATION
BOLT, SELF-LOCKING, HEXAGON HEAD, STEEL
INACTIVE FOR NEW DESIGN AFTER 6 August 2013
This specification is approved for use by all Departments and Agencies of the Department of
Defense.
1. SCOPE
1.1 Scope. This specification covers one type of steel, hexagon head, self-locking bolt.
1.2 Classification. The bolt shall be furnished in the following compositions:
Composition A SAE Grade 5
Composition B SAE Grade 8
2. APPLICABLE DOCUMENTS
2.1 General. The documents listed in this section are specified in sections 3, 4, or 5 of this
standard. This section does not include documents cited in other sections of this standard or
recommend for additional information or as examples. While every effort has been made to
ensure the completeness of this list, document users are cautioned that they must meet all
specified requirements of documents cited in sections 3, 4, or 5 of this standard, whether or not
they are listed.
2.2 Government documents.
2.2.1 Specifications, standards, and handbooks. The following specifications and standards
form a part of this document to the extent specified herein. Unless otherwise specified, the
issues of these documents are those cited in the solicitation or contract.
FEDERAL STANDARDS
FED-STD-H28/2
Screw-Thread Standards for Federal Services Section 2
Unified Inch Screw Threads- UN and UNR Thread Forms
FED-STD-H28/20
Screw-Thread Standards for Federal Services Section 20
Inspection Methods for Acceptability of UN, UNR, UNJ, M
and MJ Screw Threads
Comments, suggestions, or questions on this document should be addressed to Defense
Supply Center Philadelphia (DSCP), ATTN: DSCP-NASA, 700 Robbins Avenue, Philadelphia,
PA 19111-5096 or e-mail to dscpg&ispecomments@dla.mil . Since contact information can
change, you may want to verify the currency of this address information using the ASSIST
Online database at https://assist.dla.mil .
AMSC N/A
FSC 5306
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