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Lock Washer Split Ring Black Oxide 18-8 Stainless Steel
Lock Washer Split Ring Black Oxide 18-8 Stainless Steel


 
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Black Oxide Stainless Steel Lock Washers

Medium Profile Split Ring Lock Washers

Split Ring Lock Washers (also referred to as "Spring Lock Washers", or most simply "Lock Washers") are circular washers split at a certain point to create a helical shape. This shape applies force between the head of a bolt or screw and the installation surface. This force creates a resistance to rotation and prevents nuts, bolts and screws from vibrating loose.

Black Oxide lock washers are stainless steel fasteners (grades 18-8 or 304) that have been chemically treated to alter certain qualities of the material, most notably the color. The treatment also adds a mild corrosion and abrasion resistance (in addition to the plain stainless steel’s nature), and reduces the now black oxide stainless steel fastener’s reflective properties. To achieve maximum corrosion and abrasion resistance, the black oxide is infused with wax during the process and complies with military specifications as a Class 4 finish.

Lock Washers that have been treated in this manner are commonly used in the automotive industry on both car and motorcycle builds. Additionally, this type of fastener finish is often used in gun and knife builds, particularly in the handles, because of its corrosion and abrasion resistant qualities. Of course, black oxide fasteners are also used for their sleek black look as well.

Washer Sizes Inner Diameter (ID) Outer Diameter (OD) Washer Thickness
#2 0.094" 0.172" 0.020"
#4 0.120" 0.209" 0.025"
#6 0.148" 0.250" 0.031"
#8 0.174" 0.293" 0.040"
#10 0.200" 0.334" 0.047"
1/4" 0.260" 0.487" 0.062"
5/16" 0.322" 0.583" 0.078"
3/8" 0.385" 0.680" 0.141"
1/2" 0.512" 0.869" 0.171"


Item# Item Name Our Price Qty Add
12330002 Lock Washer Black 18-8 SS - #2 (0.094 ID x 0.172 OD x 0.020 Thick) Qty-1
$0.15
12330004 Lock Washer Black 18-8 SS - #2 (0.094 ID x 0.172 OD x 0.020 Thick) Qty-25
$0.56
12330006 Lock Washer Black 18-8 SS - #2 (0.094 ID x 0.172 OD x 0.020 Thick) Qty-100
$2.03
12330008 Lock Washer Black 18-8 SS - #2 (0.094 ID x 0.172 OD x 0.020 Thick) Qty-250
$4.80
12330010 Lock Washer Black 18-8 SS - #2 (0.094 ID x 0.172 OD x 0.020 Thick) Qty-1,000
$18.20
12330012 Lock Washer Black 18-8 SS - #2 (0.094 ID x 0.172 OD x 0.020 Thick) Qty-2,500
$42.96
12330014 Lock Washer Black 18-8 SS - #4 (0.120 ID x 0.209 OD x 0.025 Thick) Qty-1
$0.15
12330016 Lock Washer Black 18-8 SS - #4 (0.120 ID x 0.209 OD x 0.025 Thick) Qty-25
$0.64
12330018 Lock Washer Black 18-8 SS - #4 (0.120 ID x 0.209 OD x 0.025 Thick) Qty-100
$2.31
12330020 Lock Washer Black 18-8 SS - #4 (0.120 ID x 0.209 OD x 0.025 Thick) Qty-250
$5.49
12330022 Lock Washer Black 18-8 SS - #4 (0.120 ID x 0.209 OD x 0.025 Thick) Qty-1,000
$20.79
12330024 Lock Washer Black 18-8 SS - #4 (0.120 ID x 0.209 OD x 0.025 Thick) Qty-2,500
$49.09
12330026 Lock Washer Black 18-8 SS - #6 (0.148 ID x 0.250 OD x 0.031 Thick) Qty-1
$0.15
12330028 Lock Washer Black 18-8 SS - #6 (0.148 ID x 0.250 OD x 0.031 Thick) Qty-25
$0.91
12330030 Lock Washer Black 18-8 SS - #6 (0.148 ID x 0.250 OD x 0.031 Thick) Qty-100
$3.32
12330032 Lock Washer Black 18-8 SS - #6 (0.148 ID x 0.250 OD x 0.031 Thick) Qty-250
$7.89
12330034 Lock Washer Black 18-8 SS - #6 (0.148 ID x 0.250 OD x 0.031 Thick) Qty-1,000
$29.88
12330036 Lock Washer Black 18-8 SS - #6 (0.148 ID x 0.250 OD x 0.031 Thick) Qty-2,500
$70.56
12330038 Lock Washer Black 18-8 SS - #8 (0.174 ID x 0.293 OD x 0.040 Thick) Qty-1
$0.15
12330040 Lock Washer Black 18-8 SS - #8 (0.174 ID x 0.293 OD x 0.040 Thick) Qty-25
$1.27
12330042 Lock Washer Black 18-8 SS - #8 (0.174 ID x 0.293 OD x 0.040 Thick) Qty-100
$4.62
12330044 Lock Washer Black 18-8 SS - #8 (0.174 ID x 0.293 OD x 0.040 Thick) Qty-250
$10.97
12330046 Lock Washer Black 18-8 SS - #8 (0.174 ID x 0.293 OD x 0.040 Thick) Qty-1,000
$41.58
12330048 Lock Washer Black 18-8 SS - #8 (0.174 ID x 0.293 OD x 0.040 Thick) Qty-2,500
$98.18
12330050 Lock Washer Black 18-8 SS - #10 (0.200 ID x 0.334 OD x 0.047 Thick) Qty-1
$0.15
12330052 Lock Washer Black 18-8 SS - #10 (0.200 ID x 0.334 OD x 0.047 Thick) Qty-25
$1.67
12330054 Lock Washer Black 18-8 SS - #10 (0.200 ID x 0.334 OD x 0.047 Thick) Qty-100
$6.07
12330056 Lock Washer Black 18-8 SS - #10 (0.200 ID x 0.334 OD x 0.047 Thick) Qty-250
$14.41
12330058 Lock Washer Black 18-8 SS - #10 (0.200 ID x 0.334 OD x 0.047 Thick) Qty-1,000
$54.58
12330060 Lock Washer Black 18-8 SS - #10 (0.200 ID x 0.334 OD x 0.047 Thick) Qty-2,500
$128.86
12330062 Lock Washer Black 18-8 SS - 1/4" (0.260 ID x 0.487 OD x 0.062 Thick) Qty-1
$0.17
12330064 Lock Washer Black 18-8 SS - 1/4" (0.260 ID x 0.487 OD x 0.062 Thick) Qty-25
$3.90
12330066 Lock Washer Black 18-8 SS - 1/4" (0.260 ID x 0.487 OD x 0.062 Thick) Qty-100
$14.15
12330068 Lock Washer Black 18-8 SS - 1/4" (0.260 ID x 0.487 OD x 0.062 Thick) Qty-250
$33.60
12330070 Lock Washer Black 18-8 SS - 1/4" (0.260 ID x 0.487 OD x 0.062 Thick) Qty-1,000
$127.34
12330072 Lock Washer Black 18-8 SS - 1/4" (0.260 ID x 0.487 OD x 0.062 Thick) Qty-2,500
$300.66
12330074 Lock Washer Black 18-8 SS - 5/16" (0.322 ID x 0.583 OD x 0.078 Thick) Qty-1
$0.18
12330076 Lock Washer Black 18-8 SS - 5/16" (0.322 ID x 0.583 OD x 0.078 Thick) Qty-25
$4.13
12330078 Lock Washer Black 18-8 SS - 5/16" (0.322 ID x 0.583 OD x 0.078 Thick) Qty-100
$15.02
12330080 Lock Washer Black 18-8 SS - 5/16" (0.322 ID x 0.583 OD x 0.078 Thick) Qty-250
$35.66
12330082 Lock Washer Black 18-8 SS - 5/16" (0.322 ID x 0.583 OD x 0.078 Thick) Qty-1,000
$135.14
12330084 Lock Washer Black 18-8 SS - 5/16" (0.322 ID x 0.583 OD x 0.078 Thick) Qty-2,500
$319.07
12330086 Lock Washer Black 18-8 SS - 3/8" (0.385 ID x 0.680 OD x 0.141 Thick) Qty-1
$0.24
12330088 Lock Washer Black 18-8 SS - 3/8" (0.385 ID x 0.680 OD x 0.141 Thick) Qty-25
$5.58
12330090 Lock Washer Black 18-8 SS - 3/8" (0.385 ID x 0.680 OD x 0.141 Thick) Qty-100
$20.28
12330092 Lock Washer Black 18-8 SS - 3/8" (0.385 ID x 0.680 OD x 0.141 Thick) Qty-250
$48.14
12330094 Lock Washer Black 18-8 SS - 3/8" (0.385 ID x 0.680 OD x 0.141 Thick) Qty-1,000
$182.44
12330096 Lock Washer Black 18-8 SS - 3/8" (0.385 ID x 0.680 OD x 0.141 Thick) Qty-2,500
$430.74
12330098 Lock Washer Black 18-8 SS - 1/2" (0.512 ID x 0.869 OD x 0.171 Thick) Qty-1
$0.42
12330100 Lock Washer Black 18-8 SS - 1/2" (0.512 ID x 0.869 OD x 0.171 Thick) Qty-25
$9.53
12330102 Lock Washer Black 18-8 SS - 1/2" (0.512 ID x 0.869 OD x 0.171 Thick) Qty-100
$34.65
12330104 Lock Washer Black 18-8 SS - 1/2" (0.512 ID x 0.869 OD x 0.171 Thick) Qty-250
$82.30
12330106 Lock Washer Black 18-8 SS - 1/2" (0.512 ID x 0.869 OD x 0.171 Thick) Qty-1,000
$311.85
12330108 Lock Washer Black 18-8 SS - 1/2" (0.512 ID x 0.869 OD x 0.171 Thick) Qty-2,500
$736.31
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