Some of Our Best Selling Aerospace Fastener Standards


Packing, Preformed, MS28775 O-Ring

REVISION A R19. Issued: JUNE 3, 2019. CURRENT

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Insert, Screw - Thread, Locked in, Key-Locked, Miniature and Lightweight

REVISION G. Issued: MAY 9, 2022. 5 pages. CURRENT

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Insert, Screw-Thread, Locked in, Key Locked, Heavy Duty

REVISION H. Issued: MAY 9, 2022. 5 pages. CURRENT

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Stud, Locked in, Key-Locked, Heavy Duty

2ND EDITION. Issued: MAY 31, 2016. 5 pages. CURRENT

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Screw, Tapping, Thread Forming, Type Ab, Pan Head, Cross-Recessed

4TH EDITION. Issued: APRIL 29, 2016. 6 pages. CURRENT

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Screw, Machine, Pan Head, Cross-Recessed, Corrosion Resistant Steel, UNC-2A

REVISION F. Issued: JUNE 2, 2022. 9 pages. CURRENT

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Screw, Machine Pan-head, Cross-recessed, Corrosion Resisting Steel, UNF-2A

3RD EDITION. Issued: JULY 31, 2019. 2 pages. CURRENT

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Screw, Machine, Flat Countersunk Head, 82 Degrees, Cruciform Recess, Corrosion-Resistant Steel, UNC-2a

REVISION 3. Issued: AUG. 31, 2022. 3 pages. CURRENT

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Square, Hex, Heavy Hex, and Askew Head Bolts and Hex, Heavy Hex, Hex Flange, Lobed Head, and Lag Screws (Inch Series)

2012 EDITION ERRATA 2. Issued: JAN. 1, 2021. 50 pages. CURRENT

Show ASME-B18.2.1 revision history