SAE Flat Washer, Plated

Plated SAE flat washers are used under bolt heads or nuts to increase the bearing surface area, or to offer protection so that the nut or bolt can be rotated without distortion of the bearing surface. Flat washers are also used to give tightness to a joint, to prevent leakage, and especially to distribute pressure under the head of a bolt or nut. Dimensional specifications are governed by ASME B18.21.1. USS (United States Standard) flat washers have a larger outer diameter than SAE (Society of Automotive Engineers) flat washers, and can be utilized in nearly any application. These fasteners are available in zinc plated finish. Zinc plating sacrifices itself, corroding before the base material, offering added corrosion resistance.

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Governing Standards
Dimensional Specifications

Dimensional Specifications

Dimensional SpecificationsSAE Flat Washer

Per ASME B18.21.1-2009
Size	Nominal	A			B			C
		Inside Diameter			Outside Diameter			Thickness
		Basic	Tolerance Plus	Tolerance Minus	Basic	Tolerance Plus	Tolerance Minus	Basic	Max	Min
1/4	0.2500	0.2810	0.0150	0.0050	0.6250	0.0150	0.0070	0.0650	0.0800	0.0510
5/16	0.3125	0.3440	0.0150	0.0050	0.6880	0.0150	0.0070	0.0650	0.0800	0.0510
3/8	0.3750	0.4060	0.0150	0.0050	0.8120	0.0150	0.0070	0.0650	0.0800	0.0510
7/16	0.4375	0.4690	0.0150	0.0050	0.9220	0.0150	0.0070	0.0650	0.0800	0.0510
1/2	0.5000	0.5310	0.0150	0.0050	1.0620	0.0300	0.0070	0.0950	0.1210	0.0740
9/16	0.5625	0.5940	0.0150	0.0050	1.1560	0.0300	0.0070	0.0950	0.1210	0.0740
5/8	0.6250	0.6560	0.0300	0.0070	1.3120	0.0300	0.0070	0.0950	0.1210	0.0740
3/4	0.7500	0.8120	0.0300	0.0070	1.4690	0.0300	0.0070	0.1340	0.1600	0.1080
7/8	0.8750	0.9380	0.0300	0.0070	1.7500	0.0300	0.0070	0.1340	0.1600	0.1080
1	1.0000	1.0620	0.0300	0.0070	2.0000	0.0300	0.0070	0.1340	0.1600	0.1080
1 1/8	1.1250	1.2500	0.0300	0.0070	2.2500	0.0300	0.0070	0.1340	0.1600	0.1080
1 1/4	1.2500	1.3750	0.0300	0.0070	2.5000	0.0300	0.0070	0.1650	0.1920	0.1360
1 3/8	1.3750	1.5000	0.0300	0.0070	2.7500	0.0300	0.0070	0.1650	0.1920	0.1360
1 1/2	1.5000	1.6250	0.0300	0.0070	3.0000	0.0300	0.0070	0.1650	0.1920	0.1360

All dimensions are in inches.

SAE Flat Washer, Plated

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Diameter	Inside Diameter	Outside Diameter	Thickness	Item #	Availability	Price	Quantity
SAE Flat Washer, Plated Diameter 1/4 Quantity Discounts	SAE Flat Washer, Plated Inside Diameter 0.2810 Quantity Discounts	SAE Flat Washer, Plated Outside Diameter 0.6250 Quantity Discounts	SAE Flat Washer, Plated Thickness 0.0650 Quantity Discounts	SAE Flat Washer, Plated Item # WFPL025SAE Quantity Discounts	SAE Flat Washer, Plated Availability In Stock Quantity Discounts	SAE Flat Washer, Plated Price $0.02813/EA Quantity Discounts	SAE Flat Washer, Plated Unit of Measure EA Quantity Discounts	See Quantity Discounts	SAE Flat Washer, Plated Unit of Measure EA Quantity Discounts
1/4 LOW CARBON STEEL SAE FLAT WASHER, PLATED $0.02813/EA Qty In Stock Product Detail
SAE Flat Washer, Plated Diameter 5/16 Quantity Discounts	SAE Flat Washer, Plated Inside Diameter 0.3440 Quantity Discounts	SAE Flat Washer, Plated Outside Diameter 0.6880 Quantity Discounts	SAE Flat Washer, Plated Thickness 0.0650 Quantity Discounts	SAE Flat Washer, Plated Item # WFPL031SAE Quantity Discounts	SAE Flat Washer, Plated Availability In Stock Quantity Discounts	SAE Flat Washer, Plated Price $0.03384/EA Quantity Discounts	SAE Flat Washer, Plated Unit of Measure EA Quantity Discounts	See Quantity Discounts	SAE Flat Washer, Plated Unit of Measure EA Quantity Discounts
5/16 LOW CARBON STEEL SAE FLAT WASHER, PLATED $0.03384/EA Qty In Stock Product Detail
SAE Flat Washer, Plated Diameter 3/8 Quantity Discounts	SAE Flat Washer, Plated Inside Diameter 0.4060 Quantity Discounts	SAE Flat Washer, Plated Outside Diameter 0.8120 Quantity Discounts	SAE Flat Washer, Plated Thickness 0.0650 Quantity Discounts	SAE Flat Washer, Plated Item # WFPL037SAE Quantity Discounts	SAE Flat Washer, Plated Availability In Stock Quantity Discounts	SAE Flat Washer, Plated Price $0.04515/EA Quantity Discounts	SAE Flat Washer, Plated Unit of Measure EA Quantity Discounts	See Quantity Discounts	SAE Flat Washer, Plated Unit of Measure EA Quantity Discounts
3/8 LOW CARBON STEEL SAE FLAT WASHER, PLATED $0.04515/EA Qty In Stock Product Detail
SAE Flat Washer, Plated Diameter 7/16 Quantity Discounts	SAE Flat Washer, Plated Inside Diameter 0.4690 Quantity Discounts	SAE Flat Washer, Plated Outside Diameter 0.9220 Quantity Discounts	SAE Flat Washer, Plated Thickness 0.0650 Quantity Discounts	SAE Flat Washer, Plated Item # WFPL043SAE Quantity Discounts	SAE Flat Washer, Plated Availability In Stock Quantity Discounts	SAE Flat Washer, Plated Price $0.04926/EA Quantity Discounts	SAE Flat Washer, Plated Unit of Measure EA Quantity Discounts	See Quantity Discounts	SAE Flat Washer, Plated Unit of Measure EA Quantity Discounts
7/16 LOW CARBON STEEL SAE FLAT WASHER, PLATED $0.04926/EA Qty In Stock Product Detail
SAE Flat Washer, Plated Diameter 1/2 Quantity Discounts	SAE Flat Washer, Plated Inside Diameter 0.5310 Quantity Discounts	SAE Flat Washer, Plated Outside Diameter 1.0620 Quantity Discounts	SAE Flat Washer, Plated Thickness 0.0950 Quantity Discounts	SAE Flat Washer, Plated Item # WFPL050SAE Quantity Discounts	SAE Flat Washer, Plated Availability In Stock Quantity Discounts	SAE Flat Washer, Plated Price $0.07788/EA Quantity Discounts	SAE Flat Washer, Plated Unit of Measure EA Quantity Discounts	See Quantity Discounts	SAE Flat Washer, Plated Unit of Measure EA Quantity Discounts
1/2 LOW CARBON STEEL SAE FLAT WASHER, PLATED $0.07788/EA Qty In Stock Product Detail
SAE Flat Washer, Plated Diameter 9/16 Quantity Discounts	SAE Flat Washer, Plated Inside Diameter 0.5940 Quantity Discounts	SAE Flat Washer, Plated Outside Diameter 1.1560 Quantity Discounts	SAE Flat Washer, Plated Thickness 0.0950 Quantity Discounts	SAE Flat Washer, Plated Item # WFPL056SAE Quantity Discounts	SAE Flat Washer, Plated Availability In Stock Quantity Discounts	SAE Flat Washer, Plated Price $0.06663/EA Quantity Discounts	SAE Flat Washer, Plated Unit of Measure EA Quantity Discounts	See Quantity Discounts	SAE Flat Washer, Plated Unit of Measure EA Quantity Discounts
9/16 LOW CARBON STEEL SAE FLAT WASHER, PLATED $0.06663/EA Qty In Stock Product Detail
SAE Flat Washer, Plated Diameter 5/8 Quantity Discounts	SAE Flat Washer, Plated Inside Diameter 0.6560 Quantity Discounts	SAE Flat Washer, Plated Outside Diameter 1.3120 Quantity Discounts	SAE Flat Washer, Plated Thickness 0.0950 Quantity Discounts	SAE Flat Washer, Plated Item # WFPL062SAE Quantity Discounts	SAE Flat Washer, Plated Availability In Stock Quantity Discounts	SAE Flat Washer, Plated Price $0.13631/EA Quantity Discounts	SAE Flat Washer, Plated Unit of Measure EA Quantity Discounts	See Quantity Discounts	SAE Flat Washer, Plated Unit of Measure EA Quantity Discounts
5/8 LOW CARBON STEEL SAE FLAT WASHER, PLATED $0.13631/EA Qty In Stock Product Detail
SAE Flat Washer, Plated Diameter 3/4 Quantity Discounts	SAE Flat Washer, Plated Inside Diameter 0.8120 Quantity Discounts	SAE Flat Washer, Plated Outside Diameter 1.4690 Quantity Discounts	SAE Flat Washer, Plated Thickness 0.1340 Quantity Discounts	SAE Flat Washer, Plated Item # WFPL075SAE Quantity Discounts	SAE Flat Washer, Plated Availability In Stock Quantity Discounts	SAE Flat Washer, Plated Price $0.3032/EA Quantity Discounts	SAE Flat Washer, Plated Unit of Measure EA Quantity Discounts	See Quantity Discounts	SAE Flat Washer, Plated Unit of Measure EA Quantity Discounts
3/4 LOW CARBON STEEL SAE FLAT WASHER, PLATED $0.3032/EA Qty In Stock Product Detail
SAE Flat Washer, Plated Diameter 7/8 Quantity Discounts	SAE Flat Washer, Plated Inside Diameter 0.9380 Quantity Discounts	SAE Flat Washer, Plated Outside Diameter 1.7500 Quantity Discounts	SAE Flat Washer, Plated Thickness 0.1340 Quantity Discounts	SAE Flat Washer, Plated Item # WFPL087SAE Quantity Discounts	SAE Flat Washer, Plated Availability In Stock Quantity Discounts	SAE Flat Washer, Plated Price $0.17233/EA Quantity Discounts	SAE Flat Washer, Plated Unit of Measure EA Quantity Discounts	See Quantity Discounts	SAE Flat Washer, Plated Unit of Measure EA Quantity Discounts
7/8 LOW CARBON STEEL SAE FLAT WASHER, PLATED $0.17233/EA Qty In Stock Product Detail
SAE Flat Washer, Plated Diameter 1 Quantity Discounts	SAE Flat Washer, Plated Inside Diameter 1.0620 Quantity Discounts	SAE Flat Washer, Plated Outside Diameter 2.0000 Quantity Discounts	SAE Flat Washer, Plated Thickness 0.1340 Quantity Discounts	SAE Flat Washer, Plated Item # WFPL100SAE Quantity Discounts	SAE Flat Washer, Plated Availability In Stock Quantity Discounts	SAE Flat Washer, Plated Price $0.21168/EA Quantity Discounts	SAE Flat Washer, Plated Unit of Measure EA Quantity Discounts	See Quantity Discounts	SAE Flat Washer, Plated Unit of Measure EA Quantity Discounts
1 LOW CARBON STEEL SAE FLAT WASHER, PLATED $0.21168/EA Qty In Stock Product Detail
SAE Flat Washer, Plated Diameter 1 1/8 Quantity Discounts	SAE Flat Washer, Plated Inside Diameter 1.2500 Quantity Discounts	SAE Flat Washer, Plated Outside Diameter 2.2500 Quantity Discounts	SAE Flat Washer, Plated Thickness 0.1340 Quantity Discounts	SAE Flat Washer, Plated Item # WFPL112SAE Quantity Discounts	SAE Flat Washer, Plated Availability 3-5 Working Days Quantity Discounts	SAE Flat Washer, Plated Price $0.43972/EA Quantity Discounts	SAE Flat Washer, Plated Unit of Measure EA Quantity Discounts	See Quantity Discounts	SAE Flat Washer, Plated Unit of Measure EA Quantity Discounts
1 1/8 LOW CARBON STEEL SAE FLAT WASHER, PLATED $0.43972/EA Qty 3-5 Working Days Product Detail
SAE Flat Washer, Plated Diameter 1 1/4 Quantity Discounts	SAE Flat Washer, Plated Inside Diameter 1.3750 Quantity Discounts	SAE Flat Washer, Plated Outside Diameter 2.5000 Quantity Discounts	SAE Flat Washer, Plated Thickness 0.1650 Quantity Discounts	SAE Flat Washer, Plated Item # WFPL125SAE Quantity Discounts	SAE Flat Washer, Plated Availability In Stock Quantity Discounts	SAE Flat Washer, Plated Price $0.30961/EA Quantity Discounts	SAE Flat Washer, Plated Unit of Measure EA Quantity Discounts	See Quantity Discounts	SAE Flat Washer, Plated Unit of Measure EA Quantity Discounts
1 1/4 LOW CARBON STEEL SAE FLAT WASHER, PLATED $0.30961/EA Qty In Stock Product Detail
SAE Flat Washer, Plated Diameter 1 1/2 Quantity Discounts	SAE Flat Washer, Plated Inside Diameter 1.6250 Quantity Discounts	SAE Flat Washer, Plated Outside Diameter 3.0000 Quantity Discounts	SAE Flat Washer, Plated Thickness 0.1650 Quantity Discounts	SAE Flat Washer, Plated Item # WFPL150SAE Quantity Discounts	SAE Flat Washer, Plated Availability In Stock Quantity Discounts	SAE Flat Washer, Plated Price $0.82433/EA Quantity Discounts	SAE Flat Washer, Plated Unit of Measure EA Quantity Discounts	See Quantity Discounts	SAE Flat Washer, Plated Unit of Measure EA Quantity Discounts
1 1/2 LOW CARBON STEEL SAE FLAT WASHER, PLATED $0.82433/EA Qty In Stock Product Detail

SAE Flat Washer, Plated

Technical Data

Governing Standards

Governing StandardsSAE Flat Washer

Dimensional Specifications

Dimensional SpecificationsSAE Flat Washer

Grade

Diameter

Thickness

Outside Diameter

Inside Diameter

1/4 LOW CARBON STEEL SAE FLAT WASHER, PLATED

5/16 LOW CARBON STEEL SAE FLAT WASHER, PLATED

3/8 LOW CARBON STEEL SAE FLAT WASHER, PLATED

7/16 LOW CARBON STEEL SAE FLAT WASHER, PLATED

1/2 LOW CARBON STEEL SAE FLAT WASHER, PLATED

9/16 LOW CARBON STEEL SAE FLAT WASHER, PLATED

5/8 LOW CARBON STEEL SAE FLAT WASHER, PLATED

3/4 LOW CARBON STEEL SAE FLAT WASHER, PLATED

7/8 LOW CARBON STEEL SAE FLAT WASHER, PLATED

1 LOW CARBON STEEL SAE FLAT WASHER, PLATED

1 1/8 LOW CARBON STEEL SAE FLAT WASHER, PLATED

1 1/4 LOW CARBON STEEL SAE FLAT WASHER, PLATED

1 1/2 LOW CARBON STEEL SAE FLAT WASHER, PLATED