AMSC N/A FSC 53GP
DISTRIBUTION STATEMENT A: Approved for public release; distribution unlimited.
Beneficial comments (recommendations, additions, deletions) and any
pertinent data which may be of use in improving this document should be
addressed to: Commander, Naval Sea Systems Command, SEA 05Q, 2531
Jefferson Davis Hwy, Arlington, VA 22242-5160, by using the
Standardization Document Improvement Proposal (DD Form 1426) appearing at
the end of this document or by letter.
INCH-POUND
MIL-DTL-1222J
08 December 2000
SUPERCEDING
MIL-S-1222H
21 October 1986
(See 6.9 and 6.12)
DETAIL SPECIFICATION
STUDS, BOLTS, SCREWS AND NUTS FOR APPLICATIONS WHERE A HIGH DEGREE OF
RELIABILITY IS REQUIRED; GENERAL SPECIFICATION FOR
This specification is approved for use by all Departments and Agencies of the
Department of Defense.
1 SCOPE
1.1 Scope
. This specification covers standard studs, hex cap screws,
and heavy hex bolts in nominal standard diameters of ¼ inch to 4 inches, nuts
in nominal standard diameters of ¼ inch to 3 inches, and socket head cap
screws in nominal standard diameters of ¼ inch to 1½ inches for submarine
safety and other applications where a high degree of reliability is required
(see 6.1).
1.2 Classification
. The configurations, types, styles, material grades
and conditions of fasteners are as listed below. Non-standard fasteners may be
ordered using a drawing with the dimensional and material requirements of the
fastener and tested to the requirements of this specification (see 6.2).
1.2.1 Configurations, types and styles
Studs
Type I - Full body
Type II - Reduced body
Type III - Constant strength body
Type IV - Continuous thread (bolt-stud)
Type III studs styles
Style Stud end thread Nut end thread
a Class 5 Class 3A
b Class 5 Class 2A
c Class 3A Class 3A
d Class 3A Class 2A
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