34520 - Bolts, Nuts, Rivets & Washers (Miscellaneous)
34524 - Externally threaded fasteners (except aircraft)
3452411 - - Bolts: Mine roof bolts
3452412 - - Bolts: Hex bolts + Heavy, Tap & Joint, excl high strength structural
3452419 - - Metal bolts + Square, Round, Plow, High strength structural & Bent bolts (General)
3452439 - - Screws: Cap, Set, Machine, Lag, Flange & Self-locking
3452445 - - Screws: Tapping + Fillister, Flat, Hex, Oval, Pan & Truss & Wood + Flat, Oval & Round
3452489 - - Externally threaded metal fasteners (General) + Studs & all nonmetallic externally threaded fasteners
3452499 - - Externally threaded fasteners (except aircraft) (Miscellaneous)
34525 - Internally threaded fasteners (except aircraft)
3452504 - - Nuts: Hex + Flanges, Double chamfered, Washer face, Flat, Jam, Slotted, Thick, Castle, Heavy, Machine & Locking
3452529 - - Nuts: Square + Flat, Washer, Crowned, Heavy, Track, Sleeve & Machine; Sheet metal; Weld; Wing; & Cage, etc.
3452589 - - Internally threaded metal fasteners (General) + Flanged nuts (All types, except hex) & Locknuts
3452599 - - Internally threaded fasteners (except aircraft) (Miscellaneous)
34526 - Nonthreaded fasteners (except aircraft)
3452609 - - Rivets: Solid
3452615 - - Rivets: Tubular, Split (+ Rivet caps) & Blind
3452635 - - Rivets: Washers (except nonmetallic)
3452679 - - Nonthreaded metal fasteners (General) + Pins (All types) & all nonmetallic nonthreaded products
3452699 - - Nonthreaded fasteners (except aircraft) (Miscellaneous)
34527 - Aircraft aerospace fasteners
3452701 - - Aerospace: Externally threaded: Bolts: <161 KSI tensile
3452706 - - Aerospace: Externally threaded: Bolts: =>161 KSI tensile
3452715 - - Aerospace: Externally threaded: Bolts: Screws, all types; & Studs, all types
3452745 - - Aerospace: Internally threaded: Locknuts + Flanged locknuts
3452759 - - Aerospace: Internally threaded: other + Flanged nuts (All types, except flanged locknuts) Hex square nuts (All types) & Sheet metal fasteners
3452761 - - Aerospace: Nonthreaded: Washers, all types
3452762 - - Aerospace: Nonthreaded: Rivets, all types
3452763 - - Aerospace: Nonthreaded: Pins, all types
3452799 - - Aircraft aerospace fasteners (Miscellaneous)
34528 - Formed parts (made on fastener machines)
3452811 - - Formed parts: Automotive
3452821 - - Formed parts: Household appliances + Radio & Television
3452831 - - Formed parts: Aircraft
3452898 - - Formed parts: all other + Ordnance
3452899 - - Formed parts (made on fastener machines - Miscellaneous)
3452XX0 - - Bolts, Nuts, Rivets & Washers (Miscellaneous - Volume)
3452XX2 - - Bolts, Nuts, Rivets & Washers (Miscellaneous - Speciality)