Bowmalloy - 1-1/8" Screw, Grade 9 Steel USS Flat Washer - 1-1/4" ID x 2-3/4" OD, 3/16" Thick, Bowma-Guard Finish
Item #: 54481783
Brand: Bowmalloy
Model #: BOWKP80410
Exact Tooling IR#: 04
Features and Benefits
USS (United States Standard) flat washers are thicker, have larger outside diameters and do not fit as tightly around bolts as SAE (Society of Automotive Engineers) washers.
Steel is strong and durable but less corrosion resistant than stainless steel. To improve its resistance to corrosion, it may receive additional finishes and coatings.
| Product Specifications | |
|---|---|
| Type | USS |
| System of Measurement | Inch |
| Screw Size | 1-1/8 |
| Inside Diameter (Inch) | 1-1/4 |
| Inside Diameter (Decimal Inch) | 1.2500 |
| Outside Diameter (Inch) | 2-3/4 |
| Outside Diameter (Decimal Inch) | 2.7500 |
| Thickness (Decimal Inch) | 0.1770 |
| Thickness (Inch) | 3/16 |
| Material Grade | Grade 9 |
| Material | Steel |
| Finish/Coating | Bowma-Guard |
| Fastener Standard | ASTM F436 |
| Minimum Inside Diameter (Decimal Inch) | 1.2400 |
| Maximum Inside Diameter (Inch) | 1-9/32 |
| Maximum Inside Diameter (Decimal Inch) | 1.2800 |
| Maximum Outside Diameter (Inch) | 2-25/32 |
| Maximum Outside Diameter (Decimal Inch) | 2.7800 |
| Minimum Thickness (Decimal Inch) | 0.1680 |
| Maximum Thickness (Inch) | 3/16 |
| Maximum Thickness (Decimal Inch) | 0.1920 |
| Inside Diameter Tolerance (Decimal Inch) | -0.020 to 0.020 |
| Outside Diameter Tolerance (Decimal Inch) | -0.023 to 0.023 |
| For Use With | Bowmalloy Hex Head Cap Screws and Nuts |
| Hardness | Rockwell C38-42 |
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