Flat Washers 316 Stainless Steel

316 Stainless Steel Flat Washers

316 Stainless Steel Suitable for Marine 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.

  • 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

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" 0.031"
#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
Qty
Size
Select Package Quantity
SubTotal
#4
SKU #12280002
#4
SKU #12280002
1
$0.15 (0.15/ea)
25
$1.00 (0.04/ea)
100
$3.00 (0.03/ea)
1000
$20.00 (0.02/ea)
 
#6
SKU #12280014
#6
SKU #12280014
1
$0.15 (0.15/ea)
25
$1.00 (0.04/ea)
100
$3.00 (0.03/ea)
1000
$20.00 (0.02/ea)
 
#8
SKU #12280026
#8
SKU #12280026
1
$0.15 (0.15/ea)
25
$1.25 (0.05/ea)
100
$4.00 (0.04/ea)
1000
$30.00 (0.03/ea)
 
#10
SKU #12280038
#10
SKU #12280038
1
$0.15 (0.15/ea)
25
$1.25 (0.05/ea)
100
$4.00 (0.04/ea)
1000
$30.00 (0.03/ea)
 
#12
SKU #12280050
#12
SKU #12280050
1
$0.15 (0.15/ea)
25
$2.25 (0.09/ea)
100
$8.00 (0.08/ea)
1000
$70.00 (0.07/ea)
 
1/4"
SKU #12280062
1/4"
SKU #12280062
1
$0.15 (0.15/ea)
25
$1.25 (0.05/ea)
100
$4.00 (0.04/ea)
1000
$30.00 (0.03/ea)
 
5/16"
SKU #12280074
5/16"
SKU #12280074
1
$0.15 (0.15/ea)
25
$1.50 (0.06/ea)
100
$5.00 (0.05/ea)
1000
$40.00 (0.04/ea)
 
3/8"
SKU #12280086
3/8"
SKU #12280086
1
$0.15 (0.15/ea)
25
$2.00 (0.08/ea)
100
$7.00 (0.07/ea)
1000
$60.00 (0.06/ea)
 
7/16"
SKU #12280098
7/16"
SKU #12280098
1
$0.26 (0.26/ea)
25
$6.00 (0.24/ea)
100
$21.00 (0.21/ea)
1000
$180.00 (0.18/ea)
 
1/2"
SKU #12280110
1/2"
SKU #12280110
1
$0.21 (0.21/ea)
25
$5.00 (0.20/ea)
100
$18.00 (0.18/ea)
1000
$150.00 (0.15/ea)
 
9/16"
SKU #12280122
9/16"
SKU #12280122
1
$1.22 (1.22/ea)
25
$28.00 (1.12/ea)
100
$102.00 (1.02/ea)
1000
$860.00 (0.86/ea)
 
5/8"
SKU #12280134
5/8"
SKU #12280134
1
$0.41 (0.41/ea)
25
$9.50 (0.38/ea)
100
$34.00 (0.34/ea)
1000
$290.00 (0.29/ea)
 
3/4"
SKU #12280146
3/4"
SKU #12280146
1
$0.89 (0.89/ea)
25
$20.25 (0.81/ea)
100
$74.00 (0.74/ea)
1000
$630.00 (0.63/ea)
 
7/8"
SKU #12280158
7/8"
SKU #12280158
1
$0.92 (0.92/ea)
25
$21.25 (0.85/ea)
100
$77.00 (0.77/ea)
1000
$650.00 (0.65/ea)
 
1"
SKU #12280170
1"
SKU #12280170
1
$0.99 (0.99/ea)
25
$22.75 (0.91/ea)
100
$83.00 (0.83/ea)
1000
$700.00 (0.70/ea)
 
1-1/8"
SKU #12280182
1-1/8"
SKU #12280182
1
$1.98 (1.98/ea)
25
$45.50 (1.82/ea)
100
$165.00 (1.65/ea)
1000
$1,400.00 (1.40/ea)
 
1-1/4"
SKU #12280194
1-1/4"
SKU #12280194
1
$2.05 (2.05/ea)
25
$47.00 (1.88/ea)
100
$171.00 (1.71/ea)
1000
$1,450.00 (1.45/ea)
 
1-3/8"
SKU #12280206
1-3/8"
SKU #12280206
1
$5.94 (5.94/ea)
25
$136.25 (5.45/ea)
100
$495.00 (4.95/ea)
1000
$4,210.00 (4.21/ea)
 
1-1/2"
SKU #12280218
1-1/2"
SKU #12280218
1
$3.30 (3.30/ea)
25
$75.75 (3.03/ea)
100
$275.00 (2.75/ea)
1000
$2,340.00 (2.34/ea)
 
1-3/4"
SKU #12280230
1-3/4"
SKU #12280230
1
$10.89 (10.89/ea)
25
$249.50 (9.98/ea)
100
$908.00 (9.08/ea)
1000
$7,710.00 (7.71/ea)
 
2"
SKU #12280242
2"
SKU #12280242
1
$19.80 (19.80/ea)
25
$453.75 (18.15/ea)
100
$1,650.00 (16.50/ea)
1000
$14,030.00 (14.03/ea)