Flat Washers 316 Stainless Steel

316 Stainless Steel Flat Washers

316 Stainless Steel Suitable for Marine Applications


  • Used to distribute fastener pressure evenly
  • Can act as a flat surface area for nut or bolt to tighten against
  • 316 stainless steel washers are used in marine applications including
    • Boats
    • Decks
    • Docks
    • Hot Rods
    • Oil Rigs
    • Industrial Applications

A 316 flat washer is a round outer diameter thin plate with a center hole (inner diameter) punched to the size of the bolt or screw size.


Flat Washer Sizes Inner Diameter (ID) Outer Diameter (OD) Washer Thickness
#4 0.125" 0.312" 0.031"
#6 0.150" 0.312" 0.031"
#8 0.174" 0.375" 0.031"
#10 0.203" 0.437" 0.050"
#12 0.250" 9/16" 0.050"
1/4" 0.281" 5/8" 0.050"
5/16" 0.343" 3/4" 0.050"
3/8" 0.406" 7/8" 0.050"
7/16" 0.500" 1-1/8" 0.062"
1/2" 0.531" 1-1/4" 0.062"
9/16" 0.625" 1-3/8" 0.078"
5/8" 0.687" 1-1/2" 0.078"
3/4" 0.812" 1-7/8" 0.109"
7/8" 0.937" 2" 0.109"
1" 1.062" 2" 0.125"
1-1/8" 1.187" 2-1/2" 0.125"
1-1/4" 1.312" 2-3/4" 0.125"
1-3/8" 1.500" 3-1/4" 0.140"
1-1/2" 1.562" 3-1/4" 0.140"
1-3/4" 1.812" 3-1/2" 0.140"
2" 2.125" 4" 0.187"
Select Products Below See Product Specifications

NA = "Not Sold In Single Quantity"

Size
Select Package Quantity
SubTotal
Flat Washers 316 SS - #4 (0.125 ID x 0.312 OD x .031 THK)
SKU #12280001
Flat Washers 316 SS - #4 (0.125 ID x 0.312 OD x .031 THK)
SKU #12280001
1
NA
25
$1.75 (0.07/ea)
100
$4.00 (0.04/ea)
1000
$30.00 (0.03/ea)
Subtotal: $0.00 /
Flat Washers 316 SS - #6 (0.15 ID x 0.312 OD x .031 THK)
SKU #12280013
Flat Washers 316 SS - #6 (0.15 ID x 0.312 OD x .031 THK)
SKU #12280013
1
NA
25
$1.75 (0.07/ea)
100
$4.00 (0.04/ea)
1000
$30.00 (0.03/ea)
Subtotal: $0.00 /
Flat Washers 316 SS - #8 (0.174 ID x 0.375 OD x .031 THK)
SKU #12280025
Flat Washers 316 SS - #8 (0.174 ID x 0.375 OD x .031 THK)
SKU #12280025
1
NA
25
$2.25 (0.09/ea)
100
$5.00 (0.05/ea)
1000
$40.00 (0.04/ea)
Subtotal: $0.00 /
Flat Washers 316 SS - #10 (0.203 ID x 0.437 OD x .031 THK)
SKU #12280037
Flat Washers 316 SS - #10 (0.203 ID x 0.437 OD x .031 THK)
SKU #12280037
1
NA
25
$2.25 (0.09/ea)
100
$6.00 (0.06/ea)
1000
$40.00 (0.04/ea)
Subtotal: $0.00 /
Flat Washers 316 SS - #12 (0.250 ID x 9/16 OD x .050 THK)
SKU #12280049
Flat Washers 316 SS - #12 (0.250 ID x 9/16 OD x .050 THK)
SKU #12280049
1
NA
25
$3.25 (0.13/ea)
100
$9.00 (0.09/ea)
1000
$60.00 (0.06/ea)
Subtotal: $0.00 /
Flat Washers 316 SS - 1/4" (0.281 ID x 5/8 OD x .050 THK)
SKU #12280063
Flat Washers 316 SS - 1/4" (0.281 ID x 5/8 OD x .050 THK)
SKU #12280063
1
NA
25
$3.00 (0.12/ea)
100
$9.00 (0.09/ea)
1000
$60.00 (0.06/ea)
Subtotal: $0.00 /
Flat Washers 316 SS - 5/16" (0.343 ID x 3/4 OD x .050 THK)
SKU #12280073
Flat Washers 316 SS - 5/16" (0.343 ID x 3/4 OD x .050 THK)
SKU #12280073
1
NA
25
$3.50 (0.14/ea)
100
$10.00 (0.1/ea)
1000
$70.00 (0.07/ea)
Subtotal: $0.00 /
Flat Washers 316 SS - 3/8" (0.406 ID x 7/8 OD x .050 THK)
SKU #12280085
Flat Washers 316 SS - 3/8" (0.406 ID x 7/8 OD x .050 THK)
SKU #12280085
1
NA
25
$4.25 (0.17/ea)
100
$12.00 (0.12/ea)
1000
$80.00 (0.08/ea)
Subtotal: $0.00 /
Flat Washers 316 SS - 7/16" (0.500 ID x 1-1/8 OD x .062 THK)
SKU #12280097
Flat Washers 316 SS - 7/16" (0.500 ID x 1-1/8 OD x .062 THK)
SKU #12280097
1
NA
25
$8.50 (0.34/ea)
100
$30.00 (0.3/ea)
1000
$210.00 (0.21/ea)
Subtotal: $0.00 /
Flat Washers 316 SS - 1/2" (0.531 ID x 1-1/4 OD x .062 THK)
SKU #12280109
Flat Washers 316 SS - 1/2" (0.531 ID x 1-1/4 OD x .062 THK)
SKU #12280109
1
NA
25
$10.75 (0.43/ea)
100
$35.00 (0.35/ea)
1000
$230.00 (0.23/ea)
Subtotal: $0.00 /
Flat Washers 316 SS - 9/16" (0.625 ID x 1-3/8 OD x .078 THK)
SKU #12280121
Flat Washers 316 SS - 9/16" (0.625 ID x 1-3/8 OD x .078 THK)
SKU #12280121
1
$1.65 (1.65/ea)
25
$39.75 (1.59/ea)
100
$152.00 (1.52/ea)
1000
$1,280.00 (1.28/ea)
Subtotal: $0.00 /
Flat Washers 316 SS - 5/8" (0.687 ID x 1-1/2 OD x .078 THK)
SKU #12280133
Flat Washers 316 SS - 5/8" (0.687 ID x 1-1/2 OD x .078 THK)
SKU #12280133
1
$0.97 (0.97/ea)
25
$21.75 (0.87/ea)
100
$64.00 (0.64/ea)
1000
$480.00 (0.48/ea)
Subtotal: $0.00 /
Flat Washers 316 SS - 3/4" (0.812 ID x 1-7/8 OD x .109 THK)
SKU #12280145
Flat Washers 316 SS - 3/4" (0.812 ID x 1-7/8 OD x .109 THK)
SKU #12280145
1
$1.49 (1.49/ea)
25
$35.25 (1.41/ea)
100
$130.00 (1.3/ea)
1000
$1,190.00 (1.19/ea)
Subtotal: $0.00 /
Flat Washers 316 SS - 7/8" (0.937 ID x 2 OD x .109 THK)
SKU #12280157
Flat Washers 316 SS - 7/8" (0.937 ID x 2 OD x .109 THK)
SKU #12280157
1
$1.96 (1.96/ea)
25
$44.00 (1.76/ea)
100
$170.00 (1.7/ea)
1000
$1,320.00 (1.32/ea)
Subtotal: $0.00 /
Flat Washers 316 SS - 1" (1.062 ID x 2 OD x .109 THK)
SKU #12280169
Flat Washers 316 SS - 1" (1.062 ID x 2 OD x .109 THK)
SKU #12280169
1
$2.00 (2/ea)
25
$45.00 (1.8/ea)
100
$171.00 (1.71/ea)
1000
$1,330.00 (1.33/ea)
Subtotal: $0.00 /
Flat Washers 316 SS - 1-1/8" (1.187 ID x 2-1/2 OD x .125 THK)
SKU #12280181
Flat Washers 316 SS - 1-1/8" (1.187 ID x 2-1/2 OD x .125 THK)
SKU #12280181
1
$2.67 (2.67/ea)
25
$63.75 (2.55/ea)
100
$245.00 (2.45/ea)
1000
$2,090.00 (2.09/ea)
Subtotal: $0.00 /
Flat Washers 316 SS - 1-1/4" (1.312 ID x 2-3/4 OD x .125 THK)
SKU #12280193
Flat Washers 316 SS - 1-1/4" (1.312 ID x 2-3/4 OD x .125 THK)
SKU #12280193
1
$2.76 (2.76/ea)
25
$66.25 (2.65/ea)
100
$254.00 (2.54/ea)
1000
$2,140.00 (2.14/ea)
Subtotal: $0.00 /
Flat Washers 316 SS - 1-3/8" (1.50 ID x 3-1/4 OD x .140 THK)
SKU #12280205
Flat Washers 316 SS - 1-3/8" (1.50 ID x 3-1/4 OD x .140 THK)
SKU #12280205
1
$7.98 (7.98/ea)
25
$191.25 (7.65/ea)
100
$732.00 (7.32/ea)
1000
$6,210.00 (6.21/ea)
Subtotal: $0.00 /
Flat Washers 316 SS - 1-1/2" (1.562 ID x 3-1/4 OD x .140 THK)
SKU #12280217
Flat Washers 316 SS - 1-1/2" (1.562 ID x 3-1/4 OD x .140 THK)
SKU #12280217
1
$4.44 (4.44/ea)
25
$106.75 (4.27/ea)
100
$409.00 (4.09/ea)
1000
$3,450.00 (3.45/ea)
Subtotal: $0.00 /
Flat Washers 316 SS - 1-3/4" (1.812 ID x 3-1/2 OD x .140 THK)
SKU #12280229
Flat Washers 316 SS - 1-3/4" (1.812 ID x 3-1/2 OD x .140 THK)
SKU #12280229
1
$14.64 (14.64/ea)
25
$351.00 (14.04/ea)
100
$1,341.00 (13.41/ea)
1000
$11,390.00 (11.39/ea)
Subtotal: $0.00 /
Flat Washers 316 SS - 2" (2.125 ID x 4 OD x .187 THK)
SKU #12280241
Flat Washers 316 SS - 2" (2.125 ID x 4 OD x .187 THK)
SKU #12280241
1
$26.60 (26.6/ea)
25
$637.75 (25.51/ea)
100
$2,439.00 (24.39/ea)
1000
$20,740.00 (20.74/ea)
Subtotal: $0.00 /

Product Specifications
Corrosion Resistant
Yes
Grade
316
Marine Grade
Yes
Material
Stainless Steel
System of Measurement (Unit)
Inch
Tolerance (IFI)
Actual measurements may vary slightly +/- depending on production run within IFI Tolerances