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USS Flat Washers , Steel
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.
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| 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 | 1 uss f/w hrd stl yel znc (2-1/2 od) b18.22.1 | 163 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Yellow | 1 | 1 uss f/w extra thick hrd stl yellow zinc (2-1/2 od) b18.22.1 | 91 |
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| Ababa | CA | USS Flat Washer | Steel | Galvanized | 1-2 1/2 | 1 uss f/w stl hdg (2-1/2 od) b18.22.1 | 290 |
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| Ababa | CA | USS Flat Washer | Steel | Plain | 1-2 1/2 | 1 uss f/w stl pln (2-1/2 od) b18.22.1 | 123 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1-2 1/2 | 1 uss f/w stl znc (2-1/2 od) b18.22.1 | 649 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 10 9/16 | #10 uss f/w stl znc (9/16 od) b18.22.1 | 20569 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Yellow | 1 1/4 | 1 1/4 uss f/w hrd stl yel znc (3 od) b18.22.1 | 3 |
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| Ababa | CA | USS Flat Washer | Steel | Galvanized | 1 1/4 | 1 1/4 uss f/w stl hdg (3 od) b18.22.1 | 24 |
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| Ababa | CA | USS Flat Washer | Steel | Plain | 1 1/4 | 1 1/4 uss f/w stl pln (3 od) b18.22.1 | 65 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1 1/4 | 1 1/4 uss f/w stl znc (3 od) b18.22.1 | 131 |
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| Ababa | CA | USS Flat Washer | Steel | Plain | 1 1/8 | 1 1/8 uss f/w hrd stl pln (2-3/4 od) b18.22.1 | 1 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Yellow | 1 1/8 | 1 1/8 uss f/w hrd stl yel znc (2-3/4 od) b18.22.1 | 130 |
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| Ababa | CA | USS Flat Washer | Steel | Galvanized | 1 1/8 | 1 1/8 uss f/w stl hdg (2-3/4 od) b18.22.1 | 21 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1 1/8 | 1 1/8 uss f/w stl znc (2-3/4 od) b18.22.1 | 27 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 2-4 1/2 | 2 uss f/w stl znc (4-1/2 od) b18.22.1 | 23 |
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| Ababa | CA | USS Flat Washer | Steel | Plain | 2 1/2-5 | 2-1/2 uss f/w stl pln (5 od) b18.22.1 | 9 |
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| Ababa | CA | USS Flat Washer | Steel | Plain | 1 3/8 | 1 3/8 uss f/w stl pln (3-1/4 od) b18.22.1 | 95 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1 3/8 | 1 3/8 uss f/w stl znc (3-1/4 od) b18.22.1 | 124 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Yellow | 1 1/2 | 1 1/2 uss f/w hrd stl yel znc (3-1/2 od) b18.22.1 | 4 |
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| Ababa | CA | USS Flat Washer | Steel | Plain | 1 1/2 | 1 1/2 uss f/w stl pln (3-1/2 od) b18.22.1 | 94 |
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| Jackson | MS | USS Flat Washer | Steel | Cadmium | 5/8 | 5/8 USS flat 11/16 idx1 3/4 od 13/lb | 53 |
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| Jackson | MS | USS Flat Washer | Steel | Galvanized | 1/4 | USS flat hot dip 5/16 idx3/4 od 149/lb | 1876 |
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| Jackson | MS | USS Flat Washer | Steel | Galvanized | 5/16 | USS flat hot dip 3/8 idx7/8 od 87/lb | 5219 |
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| Jackson | MS | USS Flat Washer | Steel | Galvanized | 3/8 | USS flat hot dip 7/16 idx1 od 67/lb | 11734 |
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| Jackson | MS | USS Flat Washer | Steel | Galvanized | 7/16 | USS flat hot dip 1/2 idx1 1/4 od 41/lb | 1028 |
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| Jackson | MS | USS Flat Washer | Steel | Galvanized | 1/2 | USS flat hot dip 9/16 idx1 3/8 od 26/lb | 7349 |
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| Jackson | MS | USS Flat Washer | Steel | Galvanized | 5/8 | USS flat hot dip 11/16 idx1 3/4 od 13/lb | 1453 |
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| Jackson | MS | USS Flat Washer | Steel | Galvanized | 3/4 | USS flat hot dip 13/16 idx2 od 9.1/lb | 1116 |
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| Jackson | MS | USS Flat Washer | Steel | Galvanized | 7/8 | USS flat hot dip 15/16 idx2 1/4 od 6.5/lb | 237 |
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| Jackson | MS | USS Flat Washer | Steel | Galvanized | 1 | 1 USS flat hot dip 1 1/16 idx2 1/2 od 5.3/lb | 1510 |
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| Jackson | MS | USS Flat Washer | Steel | Galvanized | 1 1/8 | USS flat hot dip 1 1/4 idx2 3/4 od 4.5/lb | 1013 |
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| Jackson | MS | USS Flat Washer | Steel | Galvanized | 1 1/4 | USS flat hot dip 1 3/8 idx3 od 3.8/lb | 676 |
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| Jackson | MS | USS Flat Washer | Steel | Galvanized | 1 3/8 | USS flat hot dip 1 1/2 idx3 1/4 od 3/lb | 196 |
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| Jackson | MS | USS Flat Washer | Steel | Galvanized | 1 1/2 | USS flat hot dip 1 5/8 idx3 1/2 od 2.6/lb | 435 |
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| Jackson | MS | USS Flat Washer | Steel | Galvanized | 1 3/4 | USS flat hot dip 1 7/8 idx4 od 2/lb | 225 |
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| Jackson | MS | USS Flat Washer | Steel | Galvanized | 2 | 2 USS flat hot dip 2 1/8 idx4 1/4 od 1.6/lb | 699 |
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| Jackson | MS | USS Flat Washer | Steel | Galvanized | 2 1/4 | USS flat hot dip 2 3/8 idx4 3/4 od 1.2/lb | 112 |
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| Jackson | MS | USS Flat Washer | Steel | Galvanized | 3 | 3 USS flat h.d.g. 3 1/8 idx5 1/2 od .86/lb | 88 |
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| Jackson | MS | USS Flat Washer | Steel | Plain | 1/4 | 1/4 USS flat 5/16 idx3/4 od149/lb | 14584 |
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| Jackson | MS | USS Flat Washer | Steel | Plain | 5/16 | 5/16 USS flat 3/8 idx7/8 od87/lb | 1227 |
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| Weaver | WA | USS Flat Washer | Steel | Zinc/Yellow | 3/4 | 3/4 hi alloy uss thick flat yellow zinc | 21 |
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| Weaver | WA | USS Flat Washer | Steel | Zinc/Yellow | 7/8 | 7/8 hi alloy uss thick flat yellow zinc | 6 |
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| MAINSOURC | NH | USS Flat Washer | Steel | Galvanized | 3/4 | 3/4 uss flat stl hdg | 89 |
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| Future Fastener | TX | USS Flat Washer | Steel | Plain | 7/16 | 7/16 uss flat (blk) | 80 |
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| Jay-Cee | MI | USS Flat Washer | Steel | Plain | 1/2 | u.s.s flat s | 25617 |
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| Jay-Cee | MI | USS Flat Washer | Steel | Zinc/Clear | 5/16 | 5/16 u s s flat zinc | 84.2853 |
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| Jay-Cee | MI | USS Flat Washer | Steel | Zinc/Clear | 3/8 | 3/8 u s s flat zinc | 8927 |
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| Jay-Cee | MI | USS Flat Washer | Steel | Zinc/Clear | 7/16 | 7/16 u s s flat zinc | inquire |
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| Jay-Cee | MI | USS Flat Washer | Steel | Zinc/Clear | 1/2 | 1/2 u s s flat zinc | 1345 |
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| Jay-Cee | MI | USS Flat Washer | Steel | Galvanized | 1/2 | 1/2 u s s flat hot dipped galvanized | 930 |
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| Jay-Cee | MI | USS Flat Washer | Steel | Zinc/Clear | 5/8 | 5/8 u s s flat zinc | 3.54 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Yellow | 1 | 1 uss f/w hrd stl yel znc (2-1/2 od) b18.22.1 | 40 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Yellow | 1 | 1 uss f/w extra thick hrd stl yellow zinc (2-1/2 od) b18.22.1 | 30 |
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| Ababa | CA | USS Flat Washer | Steel | Galvanized | 1-2 1/2 | 1 uss f/w stl hdg (2-1/2 od) b18.22.1 | 130 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1-2 1/2 | 1 uss f/w stl znc (2-1/2 od) b18.22.1 | 100 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 10 9/16 | #10 uss f/w stl znc (9/16 od) b18.22.1 | 800 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1 1/4 | 1 1/4 uss f/w stl znc (3 od) b18.22.1 | 25 |
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| Ababa | CA | USS Flat Washer | Steel | Plain | 2-4 1/2 | 2 uss f/w stl pln (4-1/2 od) b18.22.1 | 4 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 2-4 1/2 | 2 uss f/w stl znc (4-1/2 od) b18.22.1 | 5 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1 3/8 | 1 3/8 uss f/w stl znc (3-1/4 od) b18.22.1 | 25 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1 1/2 | 1 1/2 uss f/w stl znc (3-1/2 od) b18.22.1 | 20 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1 3/4 | 1 3/4 uss f/w stl znc (4 od) b18.22.1 | 25 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Yellow | 1/4 | 1/4 uss f/w hrd stl yel znc (3/4 od) b18.22.1 | 2200 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Yellow | 1/4 x 25 | 1/4 uss f/w 25/pkg hrd stl yel znc (3/4 od) b18.22.1 | 6 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Yellow | 1/4 | 1/4 uss f/w extra thick hrd stl yel znc (3/4 od) b18.22.1 | 400 |
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| Ababa | CA | USS Flat Washer | Steel | Galvanized | 1/4 uss f/w stl hdg (3/4 od) b18.22.1 | 800 |
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| Ababa | CA | USS Flat Washer | Steel | Black Oxide | 1/4 uss f/w stl blk ox wax (3/4 od) b18.22.1 | 3275 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1/4 uss f/w stl znc (3/4 od) b18.22.1 | 4700 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Clear | 1/4 uss f/w stl znc (3/4 od) b18.22.1 | 600 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Yellow | 5/16 | 5/16 uss f/w hrd stl yel znc (7/8 od) b18.22.1 | 1200 |
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| Ababa | CA | USS Flat Washer | Steel | Zinc/Yellow | 5/16 | 5/16 uss f/w hrd stl yel znc (7/8 od) b18.22.1 | 4 |
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| Set Screw | IL | USS Flat Washer | Steel | Plain | 1 | 1 USS flat finish | inquire |
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| Set Screw | IL | USS Flat Washer | Steel | Plain | 1/2 | USS flat - | inquire |
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| Set Screw | IL | USS Flat Washer | Steel | Zinc/Clear | 1/2 | USS flat | inquire |
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| Set Screw | IL | USS Flat Washer | Steel | Zinc/Clear | #10 | USS flat | inquire |
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| Set Screw | IL | USS Flat Washer | Steel | Zinc/Clear | 3/8 | USS flat | inquire |
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| Set Screw | IL | USS Flat Washer | Steel | Zinc/Yellow | 3/8 | USS flat | inquire |
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| Set Screw | IL | USS Flat Washer | Steel | Zinc/Clear | 5/16 | USS flat | inquire |
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| Set Screw | IL | USS Flat Washer | Steel | Zinc/Clear | 3/4 | USS flat waher plate | inquire |
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| ACCURATE | IL | USS Flat Washer | Steel | Zinc/Clear | 3/4 | flat -uss | 413 |
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| ACCURATE | IL | USS Flat Washer | Steel | Galvanized | 1 1/2 | flat -uss hot dip | 4 |
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| ACCURATE | IL | USS Flat Washer | Steel | Galvanized | 5/16 | flat -uss hot dip | 2749 |
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| American | NY | USS Flat Washer | Steel | Galvanized | 5/8 | 5/8 uss flat hot dipped galvanized | 18.4592307692308 |
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| American | NY | USS Flat Washer | Steel | Galvanized | 1/2 | 1/2 uss flat hot dipped galvanized | 3.46 |
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| American | NY | USS Flat Washer | Steel | Galvanized | 3/4 | 3/4 uss flat hot dipped galvanized | 0.41 |
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| American | NY | USS Flat Washer | Steel | Plain | 1/2 | USS flat | 59.4 |
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| American | NY | USS Flat Washer | Steel | Zinc/Clear | 7/8 | USS flat zp | 255 |
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| SII | IN | USS Flat Washer | Steel | Zinc/Clear | 3/16 | 3/16 zinc uss flat washer) | 27 |
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| SII | IN | USS Flat Washer | Steel | Zinc/Clear | 1/4 | 1/4 zinc uss flat washer) | 20155 |
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| SII | IN | USS Flat Washer | Steel | Zinc/Clear | 5/16 | 5/16 zinc uss flat washer) | 2133 |
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| SII | IN | USS Flat Washer | Steel | Zinc/Clear | 3/8 | 3/8 zinc uss flat washer) | 100 |
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| SII | IN | USS Flat Washer | Steel | Zinc/Clear | 7/16 | 7/16 zinc uss flat washer) | 2370 |
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| SII | IN | USS Flat Washer | Steel | Zinc/Clear | 1/2 | 1/2 zinc uss flat washer) | 7212 |
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| SII | IN | USS Flat Washer | Steel | Zinc/Clear | 9/16 | 9/16 zinc uss flat washer) | 840 |
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| SII | IN | USS Flat Washer | Steel | Zinc/Clear | 5/8 | 5/8 zinc uss flat washer) | 4190 |
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| SII | IN | USS Flat Washer | Steel | Plain | 3/4 | 3/4 plain finish uss flat washer) | 377 |
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| SII | IN | USS Flat Washer | Steel | Zinc/Clear | 3/4 | 3/4 zinc uss flat washer) | 260 |
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| SII | IN | USS Flat Washer | Steel | Zinc/Clear | 7/8 | 7/8 zinc uss flat washer) | 389 |
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| SII | IN | USS Flat Washer | Steel | Zinc/Clear | 1 | 1 zinc uss flat washer) | 472 |
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| SII | IN | USS Flat Washer | Steel | Zinc/Clear | 1 1/8 | 1-1/8 zinc uss flat washer) | 50 |
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| SII | IN | USS Flat Washer | Steel | Zinc/Clear | 1 1/2 | 1-1/2 zinc uss flat washer) | 37 |
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| SII | IN | USS Flat Washer | Steel | Galvanized | 3/8 | 3/8 hot dipped galvanized finish uss flat washer) | 2630 |
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| SII | IN | USS Flat Washer | Steel | Plain | 3/8 | 3/8 plain finish uss thru-hardened flat washer ) | 9949 |
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| SII | IN | USS Flat Washer | Steel | Galvanized | 1/2 | 1/2 uss galv flat washer) | 189 |
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| JHP Fasteners | TX | USS Flat Washer | Steel | Zinc/Black | 7/16 | flat 7/16 uss steel zinc blk | 288 |
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| Lippin | CA | USS Flat Washer | Steel | Zinc/Clear | 3/16-1550 | 3/16 flat washer uss zp 5# (1550) | 8 |
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| Lippin | CA | USS Flat Washer | Steel | Zinc/Clear | 1/4-745 | 1/4 flat washer uss zp 5# (745) | 227 |
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| Lippin | CA | USS Flat Washer | Steel | Zinc/Clear | 5/16-450 | 5/16 flat washer uss zp 5# (450) | 69 |
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| Lippin | CA | USS Flat Washer | Steel | Zinc/Clear | 3/8-350 | 3/8 flat washer uss zp 5# (350) | 45 |
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| Lippin | CA | USS Flat Washer | Steel | Zinc/Clear | 7/16-205 | 7/16 flat washer uss zp 5# (205) | 78 |
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| Lippin | CA | USS Flat Washer | Steel | Zinc/Clear | 1/2-130 | 1/2 flat washer uss zp 5# (130) | 177 |
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| Lippin | CA | USS Flat Washer | Steel | Zinc/Clear | 9/16-95 | 9/16 flat washer uss zp 5# (95) | 22 |
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| Lippin | CA | USS Flat Washer | Steel | Zinc/Clear | 5/8-65 | 5/8 flat washer uss zp 5# (65) | 54 |
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| Lippin | CA | USS Flat Washer | Steel | Zinc/Clear | 3/4-44 | 3/4 flat washer uss zp 5# (44) | 231 |
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| Lippin | CA | USS Flat Washer | Steel | Zinc/Clear | 7/8-33 | 7/8 flat washer uss zp 5# (33) | 410 |
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| Lippin | CA | USS Flat Washer | Steel | Zinc/Clear | 1 flat washer uss zp 5# (26) | 315 |
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| Lippin | CA | USS Flat Washer | Steel | Zinc/Clear | 1 1/8 | 1 1/8 flat washer uss zp 5# (23) | 11 |
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| Lippin | CA | USS Flat Washer | Steel | Zinc/Clear | 1 1/4 | 1 1/4 flat washer uss zp 5# (20) | 69 |
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| Lippin | CA | USS Flat Washer | Steel | Zinc/Clear | 1 3/8 | 1 3/8 flat washer uss zp 5# (15) | 1 |
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| American | NY | USS Flat Washer | Steel | Galvanized | 3/4 | USS flat hot dipped | 162.13 |
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| American | NY | USS Flat Washer | Steel | Zinc/Clear | 3/4 | USS flat zp | 22.01 |
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