FF-B-588D
October 2, 1989
SUPERSEDING
FF-B-588C
March 29, 1971
FEDERAL SPECIFICATION
BOLT, TOGGLE: AND EXPANSION SLEEVE, SCREW
This Federal specification was approved by the Commissioner, Federal Supply
Service, General Services Administration, for the use of all Federal agencies.
1. SCOPE AND CLASSIFICATION
1.1 Scope. Toggle bolts and screw expansion sleeves covered by this
specification are self-contained anchoring devices with wings which
automatically open or swing in place after being pushed through an open hole
accessible from one side only. Plastic screw anchors are screw activated
devices which expand inside a hollow wall and accept a sheet metal screw.
1.2 Classification.
1.2.1 Type, classes and styles. Toggle bolts, expansion sleeves, and
anchors covered by this specification shall be of the following types, classes
and styles as specified (see 6.2).
Type I - Spring-wing toggle bolts, with two-piece wings.
Class A - Sheet metal winds.
Style 1 - Machine screw.
Style 2 - Continuous thread stud.
Style 3 - Eyebolt.
Class B - Wire wings.
Style 1 - Machine screw.
Style 2 - Continuous thread stud.
Type II - Tumble-wing toggle bolts, with one-piece sheet metal wings.
Class A - Pivoted bolts.
Style 1 - Machine screw.
Style 2 - Continuous thread stud.
Style 3 - Eyebolt.
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³Beneficial comments, recommendations, additions, deletions, clarifications, ³
³etc. and any data which may improve this document should be sent to: General³
³Services Administration, Industrial Engineering Group, (7FXEI), 819 Taylor ³
³St., Fort Worth, TX 76102. ³
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DISTRIBUTION STATEMENT A: Approved for
public release; distribution is unlimited. FSC 5306
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