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1/2 USS Flat Washers (ASME B18. 22.1)
USS Flat Washers were among the first known commercial flat washers in the U.S.A. They are characterized as having a loose fit, and have a larger outside diameter than SAE Flat washers. The USS designation was derived from the name “Unified Standard Series.” At the time, coarse threaded bolts were called USS bolts.
93 results, (click on any line for more information)
| Buy USS Flat Washers from one of our FCH Network Members | ||||||||
|---|---|---|---|---|---|---|---|---|
| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| Ababa | CA | USS Flat Washer | Steel | Zinc/Yellow | 1/2 | 1/2 uss f/w hrd stl yel znc (1-3/8 od) b18.22.1 | 633 |
|
| Ababa | CA | USS Flat Washer | Steel | Zinc/Yellow | 1/2 x 10 | 1/2 uss f/w 10/pkg hrd stl yel znc (1-3/8 od) b18.22.1 | 7 |
|
| Ababa | CA | USS Flat Washer | Steel | Zinc/Yellow | 1/2 | 1/2 uss f/w extra thick hrd stl yel znc (1-3/8 od) b18.22.1 | 588 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1/2 | 1/2 uss f/w dom hrd stl zinc (1-3/8 od) b18.22.1 | 200 |
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| Ababa | CA | USS Flat Washer | Steel | Galvanized | 1/2-1 3/8 | 1/2 uss f/w stl hdg (1-3/8 od) b18.22.1 | 1850 |
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| Ababa | CA | USS Flat Washer | Steel | Plain | 1/2-1 3/8 | 1/2 uss f/w stl pln (1-3/8 od) b18.22.1 | 117 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1/2-1 3/8 | 1/2 uss f/w stl znc (1-3/8 od) b18.22.1 | 5396 |
|
| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1/2-1 3/8 | 1/2 uss f/w stl znc (1-3/8 od) b18.22.1 | 846 |
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| GLF | OH | USS Flat Washer | Grade 8 | Zinc/Yellow | 1/2 | 1/2 uss flat gr 8 stl zy b18.22.1 () () () | 2086 |
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| GLF | OH | USS Flat Washer | Steel | Plain | 1/2 | 1/2 uss flat stl pln b18.22.1 () () () | 2775 |
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| GLF | OH | USS Flat Washer | Steel | Galvanized | 1/2 | 1/2 uss flat stl hdg b18.22.1 () () () | 8621 |
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| GLF | OH | USS Flat Washer | Steel | Zinc/Clear | 1/2 | 1/2 uss flat stl zc b18.22.1 () () () | 11007 |
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| GLF | OH | USS Flat Washer | Steel | Zinc/Clear | 1/2 | 1/2 uss flat stl zc domestic b18.22.1 () () () | 148 |
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| GLF | OH | USS Flat Washer | Grade 8 | Plain | 1/2 | 1/2 uss flat gr 8 stl pln b18.22.1 () () () | 1987 |
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| GLF | OH | USS Flat Washer | 316, 317, A4 Stainless | Plain | 1/2 | 1/2 uss flat 316 s/s b18.22.1 () () () | 291 |
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| GLF | OH | USS Flat Washer | Steel | Zinc/Yellow | 1/2 | 1/2 uss flat thru-hard stl zy domestic b18.22.1 () () () | 1350 |
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| GLF | OH | USS Flat Washer | Steel | Plain | 1/2 | 1/2 uss flat thru-hard stl pln domestic b18.22.1 () () () | 918 |
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| GLF | OH | USS Flat Washer | 316, 317, A4 Stainless | Plain | 1/2 | 1/2 uss flat 316 s/s domestic b18.22.1 () () () | 68 |
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| GLF | OH | USS Flat Washer | Steel | Dip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.) | 1/2 | 1/2 uss flat stl magni 575 black b18.22.1 () () () | 2132 |
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| GLF | OH | USS Flat Washer | Steel | Zinc/Clear | 1/2 | 1/2 uss flat stl zinc cobalt b18.22.1 () () () | 49 |
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| GLF | OH | USS Flat Washer | Steel | Zinc/Clear | 1/2 | 1/2 uss flat -thru-hardened-zinc-cr3 b18.22.1 () () () | 8 |
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| GLF | OH | USS Flat Washer | Grade 8 | Zinc/Yellow | 1/2 | 1/2 uss flat gr 8 stl zy cr3 b18.22.1 () () () | 94 |
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| BHAM | AL | USS Flat Washer | Grade 8 | Zinc/Yellow | 1/2 | 1/2 uss flat gr 8 yellow b18.22.1 | 32941 |
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| BHAM | AL | USS Flat Washer | Brass | Plain | 1/2 | 1/2 uss flat washer small brass b18.22.1 | 1741 |
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| Irwin Ind | Ont | USS Flat Washer | Steel | Zinc/Clear | 1/2 | 1/2 stl uss flatwashers zinc trivalent clear b18.22.1 | 6000 |
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| Irwin Ind | Ont | USS Flat Washer | Steel | Zinc/Yellow | 1/2 | 1/2 plate uss flatwashers zinc dichromate b18.22.1 | 820 |
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| ASMC | IL | USS Flat Washer | Grade 8 | Zinc/Clear | 1/2 | 1/2 gr8 flat washer uss pattern-usa med carb zp b18.22.1 | 37 |
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| ASMC | IL | USS Flat Washer | Grade 8 | Zinc/Yellow | 1/2 | 1/2 gr8 flat washer uss pattern-usa med carb yz b18.22.1 | 849 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Yellow | 1/2 | 1/2 uss f/w hrd stl yel znc (1-3/8 od) b18.22.1 | 250 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Yellow | 1/2 x 10 | 1/2 uss f/w 10/pkg hrd stl yel znc (1-3/8 od) b18.22.1 | 4 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Yellow | 1/2 | 1/2 uss f/w extra thick hrd stl yel znc (1-3/8 od) b18.22.1 | 100 |
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| Ababa | CA | USS Flat Washer | Steel | Galvanized | 1/2-1 3/8 | 1/2 uss f/w stl hdg (1-3/8 od) b18.22.1 | 250 |
|
| Ababa | CA | USS Flat Washer | Steel | Plain | 1/2-1 3/8 | 1/2 uss f/w stl pln (1-3/8 od) b18.22.1 | 150 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1/2-1 3/8 | 1/2 uss f/w stl znc (1-3/8 od) b18.22.1 | 500 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1/2-1 3/8 | 1/2 uss f/w stl znc (1-3/8 od) b18.22.1 | 150 |
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| SII | IN | USS Flat Washer | Steel | Plain | 1/2 | 1/2 plain finish uss flat washer) b18.22.1 | 577 |
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| 3Q, Inc. | IL | USS Flat Washer | Steel | Zinc/Yellow | 1/2 | 1/2 uss flat washer thru-hardened 1050 steel .0002 zinc yellow b18.22.1 | 114000 |
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| JET FITTING | CA | USS Flat Washer | Steel | Zinc/Yellow | 1/2 | 1/2 uss f/w stl thru-hard zy 353250 b18.22.1 | 1447 |
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| JET FITTING | CA | USS Flat Washer | Steel | Galvanized | 1/2 | 1/2 uss flt wash low stl hdg 345005 b18.22.1 | 2585 |
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| JET FITTING | CA | USS Flat Washer | Steel | Zinc/Clear | 1/2 | 1/2 uss f/w stl zinc 344006 b18.22.1 | 7335 |
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| General F | MI | USS Flat Washer | Steel | Zinc/Clear | 1/2 | 1/2 uss fw zn b18.22.1 | 114703 |
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| QFC | TX | USS Flat Washer | Steel | Plain | 1/2 | 1/2 uss flat plain each 26 .562x1.375x.109 b18.22.1 | 825 |
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| QFC | TX | USS Flat Washer | Steel | Plain | 1/2 | 1/2 uss flat plain each 26 .562x1.375x.109 b18.22.1 | 219 |
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| QFC | TX | USS Flat Washer | Steel | Galvanized | 1/2 | 1/2 uss flat galvanized b18.22.1 | 1026 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 1/2 | 1/2 uss flat zinc b18.22.1 | 496 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 1/2 | 1/2 uss flat zinc b18.22.1 | 27441 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 1/2 | 1/2 uss flat zinc b18.22.1 | 18610 |
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| QFC | TX | USS Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2 | 1/2 uss flat 18-8 s/s b18.22.1 | 29 |
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| QFC | TX | USS Flat Washer | Grade 5 | Zinc/Yellow | 1/2 | 1/2 uss flat thru-hardened for grade 5 & grade 8 applications yellow zinc b18.22.1 | 17200 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 1/2 | 1/2 flat uss wrought iron z b18.22.1 | 6100 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 1/2 | 1/2 flat uss wrought iron z b18.22.1 | 4207 |
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| QFC | TX | USS Flat Washer | Steel | Galvanized | 1/2 | 1/2 uss flat hdg dom. b18.22.1 | 76 |
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| QFC | TX | USS Flat Washer | Steel | Galvanized | 1/2 | 1/2 uss flat hdg dom. b18.22.1 | 1384 |
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| QFC | TX | USS Flat Washer | Grade 9 | Plain | 1/2 | 1/2 pfc-9 uss cut b18.22.1 | 125 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 1/2 x 26 | 1/2 uss flat zinc(26/lb 1300/50lb) .562x1.375x.109 b18.22.1 | 1 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 1/2 | 1/2 uss flat zinc per each 26 .562x1.375x.109 b18.22.1 | 1803 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 1/2 | 1/2 uss flat zinc per each 26 .562x1.375x.109 b18.22.1 | 3936 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 1/2 | 1/2 uss flat zinc per each 26 .562x1.375x.109 b18.22.1 | 2624 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 1/2 | 1/2 uss flat zinc per each 26 .562x1.375x.109 b18.22.1 | 263 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Clear | 1/2 | 1/2 uss flat zinc per each 26 .562x1.375x.109 b18.22.1 | 450 |
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| QFC | TX | USS Flat Washer | Steel | Zinc/Yellow | 1/2 | 1/2 uss flat hardened y/zinc b18.22.1 | 140 |
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| B & K FAST | PA | USS Flat Washer | Steel | Galvanized | 1/2 | 1/2 uss flat washers hd galv b18.22.1 | 101.1 |
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| B & K FAST | PA | USS Flat Washer | Steel | Plain | 1/2 | 1/2 uss flat washers heavy mc12 b18.22.1 | 926 |
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| B & K FAST | PA | USS Flat Washer | Grade 8 | Zinc/Yellow | 1/2 | 1/2 uss thru-hard flat washers gr 8 z yellow b18.22.1 | 45.4 |
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| B & K FAST | PA | USS Flat Washer | Steel | Plain | 1/2 | 1/2 uss flat washers plain b18.22.1 | 28.49 |
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| B & K FAST | PA | USS Flat Washer | Steel | Zinc/Clear | 1/2 | 1/2 uss flat washers zinc b18.22.1 | 201.840000012 |
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| B & K FAST | PA | USS Flat Washer | Steel | Zinc/Clear | 1/2 | 1/2 uss flat washers zinc domestic b18.22.1 | 613 |
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| B & K FAST | PA | USS Flat Washer | Steel | Zinc/Yellow | 1/2 | 1/2 uss flat washers zinc yellow b18.22.1 | 5003.1953848 |
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| B & K FAST | PA | USS Flat Washer | 316, 317, A4 Stainless | Plain | 1/2 x 1 3/8 | 1/2 x 1 3/8 od uss flat washer t-316 stainless b18.22.1 | 181 |
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| Marine Fasteners | FL | USS Flat Washer | Steel | Zinc/Yellow | 1/2 | 1/2 uss flat steel zinc dichromate b18.22.1 | 5050 |
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| BHAM | AL | USS Flat Washer | Brass | Plain | 1/2 | 1/2 uss flat small brass b18.22.1 | 45 |
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| BHAM | TX | USS Flat Washer | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2 x 1 1/4 | 1/2x1 1/4 uss flat 300 ser ss b18.22.1 | 106 |
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| QFC | TX | USS Flat Washer | Steel | Plain | 1/2 | 1/2 plain uss hard washer b18.22.1 | 782 |
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| QFC | TX | USS Flat Washer | Steel | Copper | 1/2 | 1/2 uss flat washer copper plate b18.22.1 | 388 |
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| QFC | TX | USS Flat Washer | Steel | Black Oxide | 1/2 | 1/2 uss flat washer black oxide b18.22.1 | 1958 |
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| Bostwick | IN | USS Flat Washer | Steel | Plain | 1/2 | 1/2 uss flat washer (usa mfg) b18.22.1 | 5 |
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| Bostwick | IN | USS Flat Washer | Copper | Plain | 1/2 | 1/2 uss flat washer copper b18.22.1 | 21 |
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| JET FITTING | CA | USS Flat Washer | Steel | Galvanized | 1/2 x 1.375 x .109 | 1/2x1.375x.109 flat washer steel hot dip galvanized uss b18.22.1 | 660 |
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| JET FITTING | CA | USS Flat Washer | Steel | Black Oxide | 1/2 x 1 3/8 x .109 | 1/2x1-3/8x.109 uss flat washers steel black oxide b18.22.1 | 388 |
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| THRDFAST | OK | USS Flat Washer | Steel | Zinc/Clear | 1/2 | USS f/w domestic b18.22.1 | 34 |
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| THRDFAST | AL | USS Flat Washer | Steel | Cadmium | 1/2 | USS f/w b18.22.1 | 126 |
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| THRDFAST | AL | USS Flat Washer | Steel | Cadmium | 1/2 | USS f/w domestic b18.22.1 | 81 |
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| KBS | TN | USS Flat Washer | Steel | Plain | 1/2 | 1/2 !hardened! uss flat/w b18.22.1 | 1,148 |
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| KBS | TN | USS Flat Washer | Steel | Zinc/Yellow | 1/2 | 1/2 !hardened! uss flat/w yellowznc b18.22.1 | 799 |
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| KBS | TN | USS Flat Washer | Steel | Zinc/Yellow | 1/2 | 1/2 !hardened! uss flat/w yellowznc b18.22.1 | 4,800 |
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| KBS | TN | USS Flat Washer | Steel | Plain | 1/2 | 1/2 uss flat/w b18.22.1 | 18,716 |
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| THRDFAST | AL | USS Flat Washer | Steel | Zinc/Clear | 1/2 | USS f/w pkg. 100pcs b18.22.1 | 8300 |
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| THRDFAST | AL | USS Flat Washer | Grade 8 | Zinc/Yellow | 1/2 | gr 8 USS f/w z&y extra thk b18.22.1 | 200 |
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| THRDFAST | MS | USS Flat Washer | Grade 8 | Zinc/Yellow | 1/2 | gr8 USS f/w z&y domestic b18.22.1 | 60 |
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| THRDFAST | OK | USS Flat Washer | Steel | Galvanized | 1/2 | USS f/w mech b18.22.1 | 1,608 |
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| WSB | KY | USS Flat Washer | Steel | Black Oxide | 1/2 | washer flat uss a w st (bo) 1/2 b18.22.1 | 40,978 |
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| Davis | IL | USS Flat Washer | Steel | Galvanized | 1/2 | 1/2 uss flat washer-steel galvonized b18.22.1 | 50 |
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| Davis | IL | USS Flat Washer | Steel | Zinc/Clear | 1/2 | 1/2 uss flat washer-steel zinc b18.22.1 | 500 |
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