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    755 Products

    Split Lock Washers

    Image of Product. Front orientation. Lock Washers. Split-Lock Washer.
    Stop nuts and screws from loosening due to mild vibration. As you tighten, the uneven ends bite into the nut or screw so it won't back out. While they're not as vibration resistant as other lock washers, they are a great fit for electrical panels, light fixtures, and other light duty assemblies. Split lock washers are not reusable, and they only work with fasteners that have right-hand threads.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these washers won't rust when exposed to moisture. However, they can't hold up to the harsh chemicals that 316 stainless steel can.
    Black-Oxide 18-8 Stainless Steel—Typically chosen for their appearance, these washers have a dark, matte coating to create a finished look. They won't rust in wet and outdoor environments, but can't hold up to harsh chemicals as well as 316 stainless steel.
    Highly Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these washers won't degrade when exposed to harsh weather, salt water, and most chemicals.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    Zinc-Yellow-Chromate-Plated Steel—With the same corrosion resistance as zinc-plated steel, these withstand occasional exposure to moisture.
    Black-Oxide Steel—Best for dry environments since moisture will cause these washers to rust. They have a dark, matte appearance.
    Blue-Dyed Steel—These metric-sized washers have a distinctive blue color, so you can easily tell them apart from inch washers. The coating provides only minimal corrosion resistance, so these washers are best for dry environments.
    Steel—Best for dry environments since moisture will cause these washers to rust.
    Corrosion-Resistant Galvanized Steel—These washers combine the strength of steel with the rust resistance of stainless steel. They're an alternative to 18-8 stainless steel in wet and outdoor environments, but they won't hold up to salt water and chemicals.
    Highly Corrosion-Resistant Zinc-Flake-Coated Steel—With 40 times the corrosion resistance of zinc-plated steel, they have been tested to extreme standards, including 1,000 hours of salt spray. They are similar to Magni-coated washers.
    Aluminum—One-third the weight of steel, these washers are commonly used for assemblies that have weight limits. They're an alternative to stainless steel for rust resistance, but aren't as strong.
    Highly Corrosion-Resistant Silicon Bronze—The choice for marine environments, these washers won't rust or deteriorate when submerged in salt water. They resist corrosion as well as 316 stainless steel, but are not quite as strong.
    High-Strength Highly Corrosion-Resistant K500 Nickel—More than three times as strong as 316 stainless steel, and with superior rust resistance to withstand prolonged exposure to salt water and acids. These washers are often used in the oil and gas industries. Also known as Monel.
    Large Pack—Priced at least 30% lower per washer than small packs.
    Small Pack
    Large Pack
    For Screw
    Size
    ID
    OD
    Thk.
    For Fastener Strength
    Grade/Class
    Pkg.
    Qty.
    Pkg.
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    No. 0
    0.062"0.137"0.015"10092146A510000001,00092146A001000000
    No. 1
    0.075"0.150"0.015"10092146A51500001,00092146A00200000
    No. 2
    0.094"0.172"0.020"10092146A52000001,00092146A00300000
    No. 3
    0.107"0.195"0.025"10092146A52500001,00092146A00400000
    No. 4
    0.120"0.209"0.025"10092146A53000001,00092146A00500000
    No. 4
    0.120"0.223"0.031"10091007A6140000———0
    No. 5
    0.133"0.236"0.031"10092146A53500001,00092146A00600000
    No. 6
    0.148"0.250"0.031"10092146A54000001,00092146A00700000
    No. 6
    0.148"0.266"0.040"10091007A6190000———0
    No. 8
    0.174"0.293"0.040"10092146A54500001,00092146A00900000
    No. 8
    0.174"0.307"0.047"10091007A62300002,00091007A11000000
    No. 10
    0.200"0.334"0.047"10092146A55000001,00092146A01100000
    No. 10
    0.200"0.350"0.056"10091007A62800002,00091007A12000000
    No. 12
    0.227"0.377"0.056"10092146A01300002,00092146A11100000
    1/4"
    0.260"0.487"0.062"10092146A02900002,00092146A11200000
    1/4"
    0.260"0.489"0.077"5091007A63200001,00091007A130000000
    5/16"
    0.322"0.583"0.078"10092146A03000002,00092146A11300000
    5/16"
    0.322"0.594"0.097"5091007A636000001,00091007A140000000
    3/8"
    0.385"0.680"0.094"10092146A03100002,00092146A114000000
    3/8"
    0.385"0.688"0.115"2591007A641000050091007A150000000
    7/16"
    0.450"0.776"0.109"5092146A03200001,00092146A11500000
    1/2"
    0.512"0.869"0.125"5092146A03300001,00092146A116000000
    1/2"
    0.512"0.879"0.151"1091007A652000020091007A16000000
    9/16"
    0.574"0.965"0.141"2592146A066000050092146A117000000
    5/8"
    0.641"1.073"0.156"2592146A035000050092146A118000000
    5/8"
    0.641"1.087"0.189"591007A676000010091007A17000000
    3/4"
    0.766"1.265"0.188"1092146A036000020092146A11900000
    3/4"
    0.766"1.285"0.226"191007A6810000———0
    7/8"
    0.894"1.459"0.219"592146A037000010092146A12100000
    1"
    1.024"1.656"0.250"592146A038000010092146A12200000
    1 1/8"
    1.153"1.847"0.281"192146A0390000———0
    1 1/4"
    1.280"2.036"0.312"192146A0400000———0
    1 3/8"
    1.408"2.219"0.344"192146A0500000———0
    1 1/2"
    1.534"2.419"0.375"192146A04100000———0
    1 5/8"
    1.663"2.553"0.389"192146A6110000———0
    1 3/4"
    1.789"2.679"0.389"192146A04300000———0
    1 7/8"
    1.914"2.811"0.422"192146A61200000———0
    2"
    2.039"2.936"0.422"192146A04900000———0
    2 1/4"
    2.293"3.221"0.440"192146A61300000———0
    2 1/2"
    2.543"3.471"0.440"192146A61400000———0
    M2
    2.4 mm4.4 mm0.4 mm to 0.6 mm10092148A0500000———0
    M2.5
    2.9 mm5.1 mm0.5 mm to 0.7 mm10092148A0700000———0
    M2.6
    3.0 mm5.2 mm0.5 mm to 0.7 mm10092148A1100000———0
    M3
    3.4 mm6.2 mm0.7 mm to 0.9 mm10092148A1500000———0
    M3.5
    3.9 mm6.7 mm0.7 mm to 0.9 mm10092148A1550000———0
    M4
    4.4 mm7.6 mm0.8 mm to 1.0 mm10092148A1600000———0
    M5
    5.4 mm9.2 mm1.1 mm to 1.3 mm10092148A1700000———0
    M6
    6.5 mm11.8 mm1.5 mm to 1.7 mm10092148A1800000———0
    M7
    7.5 mm12.8 mm1.5 mm to 1.7 mm5092148A3110000———0
    M8
    8.5 mm14.8 mm1.9 mm to 2.1 mm10092148A200000002,00092148A411000000
    M10
    10.7 mm18.1 mm2.0 mm to 2.4 mm10092148A210000002,00092148A412000000
    M12
    12.7 mm21.1 mm2.3 mm to 2.7 mm5092148A214000001,00092148A413000000
    M14
    14.7 mm24.1 mm2.8 mm to 3.2 mm2592148A2210000050092148A414000000
    M16
    17.0 mm27.4 mm3.3 mm to 3.7 mm2592148A2410000050092148A415000000
    M18
    19.0 mm29.4 mm3.3 mm to 3.7 mm1092148A2510000———0
    M20
    21.2 mm33.6 mm3.8 mm to 4.2 mm1092148A261000020092148A416000000
    M22
    22.5 mm35.9 mm3.8 mm to 4.2 mm592148A1110000———0
    M24
    25.5 mm40.0 mm4.8 mm to 5.2 mm1092148A27100000———0
    M27
    27.5 mm43.0 mm4.8 mm to 5.2 mm592148A11200000———0
    M30
    31.7 mm48.2 mm5.8 mm to 6.2 mm192148A2810000———0
    M36
    37.7 mm58.2 mm5.8 mm to 6.2 mm192148A2910000———0
     
    Black-Oxide 18-8 Stainless Steel
    No. 2
    0.094"0.172"0.020"10092146A6150000———0
    No. 4
    0.120"0.209"0.025"10092146A6160000———0
    No. 6
    0.148"0.250"0.031"10092146A61700002,00092146A41100000
    No. 8
    0.174"0.293"0.040"10092146A61800002,00092146A41200000
    No. 10
    0.200"0.334"0.047"10092146A61900002,00092146A41300000
    1/4"
    0.260"0.487"0.062"10092146A62100002,00092146A41400000
    5/16"
    0.322"0.583"0.078"10092146A62200002,00092146A415000000
    3/8"
    0.385"0.680"0.094"5092146A62300001,00092146A41600000
    1/2"
    0.512"0.869"0.125"2592146A624000050092146A41700000
    M2
    2.4 mm4.4 mm0.4 mm to 0.6 mm1092148A3310000———0
    M2.5
    2.9 mm5.1 mm0.5 mm to 0.7 mm1092148A3320000———0
    M3
    3.4 mm6.2 mm0.7 mm to 0.9 mm1092148A3330000———0
    M5
    5.4 mm9.2 mm1.1 mm to 1.3 mm1092148A3340000———0
    M6
    6.5 mm11.8 mm1.5 mm to 1.7 mm1092148A3350000———0
    M8
    8.5 mm14.8 mm1.9 mm to 2.1 mm1092148A3360000———0
    M10
    10.7 mm18.1 mm2.0 mm to 2.4 mm1092148A3370000———0
    M12
    12.7 mm21.1 mm2.3 mm to 2.7 mm1092148A3380000———0
    M16
    17.0 mm27.4 mm3.3 mm to 3.7 mm1092148A33900000———0
    M20
    21.2 mm33.6 mm3.8 mm to 4.2 mm1092148A34100000———0
     
    Highly Corrosion-Resistant 316 Stainless Steel
    No. 0
    0.062"0.137"0.015"10092147A1110000———0
    No. 2
    0.094"0.172"0.020"10092147A41000001,00092147A00300000
    No. 3
    0.107"0.195"0.025"10092147A2100000———0
    No. 4
    0.120"0.209"0.025"10092147A41500001,00092147A00500000
    No. 5
    0.133"0.236"0.031"10092147A1120000———0
    No. 6
    0.148"0.250"0.031"10092147A42000001,00092147A00700000
    No. 8
    0.174"0.293"0.040"10092147A42500001,00092147A00900000
    No. 10
    0.200"0.334"0.047"10092147A43000001,00092147A01100000
    No. 12
    0.227"0.377"0.056"10092147A1130000———0
    1/4"
    0.260"0.487"0.062"10092147A02900002,00092147A211000000
    5/16"
    0.322"0.583"0.078"10092147A030000002,00092147A212000000
    3/8"
    0.385"0.680"0.094"5092147A03100001,00092147A213000000
    7/16"
    0.450"0.776"0.109"2592147A032000050092147A21400000
    1/2"
    0.512"0.869"0.125"2592147A033000050092147A215000000
    9/16"
    0.574"0.965"0.141"2592147A03400000———0
    5/8"
    0.641"1.073"0.156"1092147A035000020092147A216000000
    3/4"
    0.766"1.265"0.188"1092147A0360000020092147A217000000
    7/8"
    0.894"1.459"0.219"592147A0370000———0
    1"
    1.024"1.656"0.250"592147A0380000010092147A218000000
    1 1/8"
    1.153"1.847"0.281"192147A0390000———0
    1 1/4"
    1.280"2.036"0.312"192147A0400000———0
    1 3/8"
    1.408"2.219"0.344"192147A5110000———0
    1 1/2"
    1.534"2.419"0.375"192147A04100000———0
    1 5/8"
    1.663"2.553"0.389"192147A51200000———0
    1 3/4"
    1.789"2.679"0.389"192147A51300000———0
    2"
    2.039"2.936"0.422"192147A51500000———0
    2 1/4"
    2.293"3.221"0.440"192147A51600000———0
    M2
    2.4 mm4.4 mm0.4 mm to 0.6 mm10092153A4060000———0
    M2.5
    2.9 mm5.1 mm0.5 mm to 0.7 mm10092153A4110000———0
    M3
    3.4 mm6.2 mm0.7 mm to 0.9 mm10092153A41600002,00092153A21100000
    M3.5
    3.9 mm6.7 mm0.7 mm to 0.9 mm10092153A4510000———0
    M4
    4.4 mm7.6 mm0.8 mm to 1.0 mm10092153A41800002,00092153A21200000
    M5
    5.4 mm9.2 mm1.1 mm to 1.3 mm10092153A42200002,00092153A21300000
    M6
    6.5 mm11.8 mm1.5 mm to 1.7 mm10092153A42600002,00092153A21400000
    M8
    8.5 mm14.8 mm1.9 mm to 2.1 mm10092153A429000002,00092153A215000000
    M10
    10.7 mm18.1 mm2.0 mm to 2.4 mm5092153A43400001,00092153A216000000
    M12
    12.7 mm21.1 mm2.3 mm to 2.7 mm5092153A436000001,00092153A217000000
    M14
    14.7 mm24.1 mm2.8 mm to 3.2 mm2592153A43900000———0
    M16
    17.0 mm27.4 mm3.3 mm to 3.7 mm1092153A442000020092153A21800000
    M18
    19.0 mm29.4 mm3.3 mm to 3.7 mm1092153A4450000———0
    M20
    21.2 mm33.6 mm3.8 mm to 4.2 mm1092153A44700000———0
    M24
    25.5 mm40.0 mm4.8 mm to 5.2 mm592153A4490000———0
    M30
    31.7 mm48.2 mm5.8 mm to 6.2 mm192153A4530000———0
     
    Zinc-Plated Steel
    No. 2
    0.094"0.172"0.020"10091102A7100000———0
    No. 3
    0.107"0.195"0.025"10091102A71500001,00091102A00400000
    No. 4
    0.120"0.209"0.025"10091102A72000001,00091102A00500000
    No. 5
    0.133"0.236"0.031"10091102A72500001,00091102A00600000
    No. 6
    0.148"0.250"0.031"10091102A73000001,00091102A00700000
    No. 8
    0.174"0.293"0.040"10091102A73500001,00091102A00900000
    No. 10
    0.200"0.334"0.047"10091102A74000001,00091102A01100000
    No. 12
    0.227"0.377"0.056"10091102A74500001,00091102A01300000
    1/4"
    0.260"0.487"0.062"10091102A75000001,00091102A02900000
    1/4"
    0.272"0.489"0.062"10092507A11000000———0
    5/16"
    0.322"0.583"0.078"10091102A75500001,00091102A03000000
    3/8"
    0.385"0.680"0.094"10091102A76000001,00091102A03100000
    3/8"
    0.397"0.688"0.094"5092507A1200000———0
    7/16"
    0.450"0.776"0.109"10091102A76500001,00091102A03200000
    1/2"
    0.512"0.869"0.125"10091102A770000001,00091102A03300000
    1/2"
    0.522"0.879"0.125"2592507A1300000———0
    9/16"
    0.574"0.965"0.141"10091102A03400000———0
    5/8"
    0.641"1.073"0.156"5091102A0350000———0
    3/4"
    0.766"1.265"0.188"5091102A03600000———0
    7/8"
    0.894"1.459"0.219"2591102A03700000———0
    1"
    1.024"1.656"0.250"1091102A038000020091102A121000000
    1 1/8"
    1.153"1.847"0.281"1091102A03900000———0
    1 1/4"
    1.280"2.036"0.312"591102A0400000010091102A122000000
    1 3/8"
    1.408"2.219"0.344"591102A05600000———0
    1 1/2"
    1.534"2.419"0.375"191102A0410000———0
    1 3/4"
    1.789"2.679"0.389"191102A0440000———0
    2"
    2.039"2.936"0.422"191102A0470000———0
    M2
    2.4 mm4.4 mm0.4 mm to 0.6 mm10091202A2140000———0
    M2.5
    2.9 mm5.1 mm0.5 mm to 0.7 mm10091202A2180000———0
    M3
    3.4 mm6.2 mm0.7 mm to 0.9 mm10091202A22200002,00091202A31100000
    M3.5
    3.6 mm6.7 mm0.7 mm to 0.9 mm10091202A2240000———0
    M4
    4.4 mm7.6 mm0.8 mm to 1.0 mm10091202A22600002,00091202A31200000
    M5
    5.4 mm9.2 mm1.1 mm to 1.3 mm10091202A23000002,00091202A31300000
    M6
    6.5 mm11.8 mm1.5 mm to 1.7 mm10091202A23400002,00091202A31400000
    M7
    7.5 mm12.8 mm1.5 mm to 1.7 mm10091202A1110000———0
    M8
    8.5 mm14.8 mm1.9 mm to 2.1 mm10091202A23800002,00091202A31500000
    M10
    10.7 mm18.1 mm2.0 mm to 2.4 mm10091202A24200002,00091202A316000000
    M12
    12.7 mm21.1 mm2.3 mm to 2.7 mm10091202A246000002,00091202A317000000
    M14
    14.7 mm24.1 mm2.8 mm to 3.2 mm10091202A250000002,00091202A318000000
    M16
    17.0 mm27.4 mm3.3 mm to 3.7 mm5091202A253000001,00091202A319000000
    M18
    19.0 mm29.4 mm3.3 mm to 3.7 mm2591202A1120000———0
    M20
    21.2 mm33.6 mm3.8 mm to 4.2 mm2591202A2570000050091202A321000000
    M22
    22.5 mm35.9 mm3.8 mm to 4.2 mm1091202A1130000———0
    M24
    25.5 mm40.0 mm4.8 mm to 5.2 mm2591202A26100000———0
    M27
    28.5 mm43.0 mm4.8 mm to 5.2 mm1091202A11400000———0
    M30
    31.7 mm48.2 mm5.8 mm to 6.2 mm1091202A26300000———0
    M33
    33.5 mm55.2 mm5.8 mm to 6.2 mm591202A11500000———0
    M36
    37.7 mm58.2 mm5.8 mm to 6.2 mm591202A26500000———0
    M42
    43.7 mm68.2 mm6.8 mm to 7.2 mm191202A1160000———0
    M48
    50.5 mm75.0 mm6.8 mm to 7.2 mm191202A11700000———0
     
    Zinc-Yellow-Chromate-Plated Steel
    1/4"
    0.260"0.487"0.062"SAE Grade 8
    10091104A0290000———0
    5/16"
    0.322"0.583"0.078"SAE Grade 8
    10091104A0300000———0
    3/8"
    0.385"0.680"0.094"SAE Grade 8
    10091104A0310000———0
    7/16"
    0.450"0.776"0.109"SAE Grade 8
    10091104A03200000———0
    1/2"
    0.512"0.869"0.125"SAE Grade 8
    10091104A03300000———0
    9/16"
    0.574"0.965"0.141"SAE Grade 8
    5091104A03400000———0
    5/8"
    0.641"1.073"0.156"SAE Grade 8
    5091104A03500000———0
    3/4"
    0.766"1.265"0.188"SAE Grade 8
    2591104A04700000———0
    7/8"
    0.894"1.459"0.219"SAE Grade 8
    1091104A0480000———0
    1"
    1.024"1.656"0.250"SAE Grade 8
    1091104A04900000———0
    1 1/8"
    1.153"1.903"0.345"SAE Grade 8
    591104A05000000———0
    1 1/4"
    1.280"2.104"0.384"SAE Grade 8
    191104A0550000———0
    1 3/8"
    1.408"2.301"0.422"SAE Grade 8
    191104A0600000———0
    1 1/2"
    1.534"2.491"0.458"SAE Grade 8
    191104A06500000———0
    2"
    2.039"3.144"0.496"SAE Grade 8
    191104A07000000———0
    M3
    3.4 mm6.2 mm0.7 mm to 0.9 mm10096982A1510000———0
    M4
    4.4 mm7.6 mm0.8 mm to 1.0 mm10096982A1520000———0
    M5
    5.4 mm9.2 mm1.1 mm to 1.3 mm10096982A1530000———0
    M6
    6.5 mm11.8 mm1.5 mm to 1.7 mm10096982A15400002,00096982A21100000
    M8
    8.5 mm14.8 mm1.9 mm to 2.1 mm10096982A15500002,00096982A212000000
    M10
    10.7 mm18.1 mm2.0 mm to 2.4 mm10096982A156000002,00096982A213000000
    M12
    12.7 mm21.1 mm2.3 mm to 2.7 mm5096982A15700001,00096982A214000000
    M14
    14.7 mm24.1 mm2.8 mm to 3.2 mm5096982A15800000———0
    M16
    17.0 mm27.4 mm3.3 mm to 3.7 mm2596982A159000050096982A215000000
    M18
    19.0 mm29.4 mm3.3 mm to 3.7 mm2596982A16100000———0
    M20
    21.2 mm33.6 mm3.8 mm to 4.2 mm1096982A1620000———0
    M24
    25.5 mm40.0 mm4.8 mm to 5.2 mm1096982A1630000———0
    M30
    31.7 mm48.2 mm5.8 mm to 6.2 mm596982A16400000———0
     
    Black-Oxide Steel
    1/4"
    0.260"0.487"0.062"505185N1110000———0
    5/16"
    0.322"0.583"0.078"505185N1120000———0
    3/8"
    0.385"0.680"0.094"255185N1130000———0
    7/16"
    0.450"0.776"0.109"255185N1140000———0
    1/2"
    0.512"0.869"0.125"105185N1150000———0
    9/16"
    0.574"0.965"0.141"105185N1160000———0
    5/8"
    0.641"1.073"0.156"105185N1170000———0
    3/4"
    0.766"1.265"0.188"55185N1180000———0
    7/8"
    0.894"1.459"0.219"55185N1190000———0
    1"
    1.024"1.656"0.250"15185N1210000———0
    1 1/8"
    1.153"1.847"0.281"15185N1220000———0
    1 1/4"
    1.280"2.036"0.312"15185N1230000———0
    1 3/8"
    1.408"2.219"0.344"15185N1240000———0
    1 1/2"
    1.534"2.419"0.375"15185N12500000———0
    1 3/4"
    1.789"2.679"0.389"15185N12600000———0
    2"
    2.039"2.936"0.422"15185N12700000———0
    M6
    6.5 mm11.8 mm1.5 mm to 1.7 mm10097093A21400000———0
    M8
    8.5 mm14.8 mm1.9 mm to 2.1 mm10097093A21500000———0
    M10
    10.7 mm18.1 mm2.0 mm to 2.4 mm5097093A2160000———0
    M16
    17.0 mm27.4 mm3.3 mm to 3.7 mm2597093A2180000———0
     
    Blue-Dyed Steel
    M3
    3.4 mm6.2 mm0.7 mm to 0.9 mm10093279A1230000———0
    M4
    4.5 mm7.6 mm0.8 mm to 1.0 mm10093279A1240000———0
    M5
    5.4 mm9.2 mm1.1 mm to 1.3 mm10093279A1250000———0
    M6
    6.2 mm12.1 mm2.0 mm10093279A10000000———0
    M6
    6.5 mm11.8 mm1.5 mm to 1.7 mm5093279A1100000———0
    M8
    8.2 mm15.2 mm2.5 mm10093279A2000000———0
    M8
    8.5 mm14.8 mm1.9 mm to 2.1 mm5093279A1200000———0
    M10
    10.2 mm18.0 mm2.9 mm5093279A3000000———0
    M10
    10.7 mm18.1 mm2.0 mm to 2.4 mm2593279A1300000———0
    M12
    12.3 mm21.7 mm3.8 mm10093279A40000000———0
    M12
    12.7 mm21.1 mm2.3 mm to 2.7 mm2593279A1400000———0
    M16
    16.4 mm27.9 mm4.8 mm2593279A50000000———0
    M16
    17.0 mm27.4 mm3.3 mm to 3.7 mm2593279A15000000———0
    M20
    20.5 mm33.8 mm5.7 mm1093279A6000000———0
    M20
    21.2 mm33.6 mm3.8 mm to 4.2 mm1093279A1600000———0
    M24
    24.5 mm40.7 mm7.2 mm1093279A70000000———0
     
    Steel
    No. 5
    0.133"0.236"0.031"10091101A00600000———0
    No. 6
    0.148"0.250"0.031"———01,00091101A0070000
    No. 8
    0.174"0.293"0.040"———01,00091101A00900000
    No. 10
    0.200"0.334"0.047"———01,00091101A01100000
    No. 12
    0.227"0.377"0.056"———01,00091101A01300000
    1/4"
    0.260"0.487"0.062"10091101A22900001,00091101A02900000
    5/16"
    0.322"0.583"0.078"10091101A23000001,00091101A03000000
    3/8"
    0.385"0.680"0.094"10091101A23100001,00091101A03100000
    7/16"
    0.450"0.776"0.109"10091101A2320000———0
    1/2"
    0.512"0.869"0.125"10091101A233000001,00091101A03300000
    9/16"
    0.574"0.965"0.141"5091101A2340000———0
    5/8"
    0.641"1.073"0.156"5091101A2350000050091101A03500000
    3/4"
    0.766"1.265"0.188"5091101A2360000050091101A036000000
    7/8"
    0.894"1.459"0.219"2591101A23700000———0
    1"
    1.024"1.656"0.250"1091101A0380000———0
    1 1/8"
    1.153"1.847"0.281"1091101A03900000———0
    1 1/4"
    1.280"2.036"0.312"1091101A04000000———0
    1 1/2"
    1.534"2.419"0.375"591101A04100000———0
    1 5/8"
    1.663"2.553"0.389"191101A0450000———0
    1 3/4"
    1.789"2.679"0.389"191101A0510000———0
    2"
    2.039"2.936"0.422"191101A0590000———0
    M2
    2.4 mm4.4 mm0.4 mm to 0.6 mm10091169A0500000———0
    M2.5
    2.9 mm5.1 mm0.5 mm to 0.7 mm10091169A0700000———0
    M3
    3.4 mm6.2 mm0.7 mm to 0.9 mm10091169A1500000———0
    M3.5
    3.9 mm6.7 mm0.7 mm to 0.9 mm10091169A1550000———0
    M4
    4.4 mm7.6 mm0.8 mm to 1.0 mm10091169A1600000———0
    M5
    5.4 mm9.2 mm1.1 mm to 1.3 mm10091169A1700000———0
    M6
    6.5 mm11.8 mm1.5 mm to 1.7 mm10091169A1800000———0
    M8
    8.5 mm14.8 mm1.9 mm to 2.1 mm10091169A2000000———0
    M10
    10.7 mm18.1 mm2.0 mm to 2.4 mm10091169A2100000———0
    M12
    12.7 mm21.1 mm2.3 mm to 2.7 mm10091169A21400000———0
    M14
    14.7 mm24.1 mm2.8 mm to 3.2 mm10091169A22000000———0
    M16
    17.0 mm27.4 mm3.3 mm to 3.7 mm5091169A24000000———0
    M18
    19.0 mm29.4 mm3.3 mm to 3.7 mm5091169A24200000———0
    M20
    21.2 mm33.6 mm3.8 mm to 4.2 mm2591169A24500000———0
    M24
    25.5 mm40.0 mm4.8 mm to 5.2 mm2591169A24800000———0
    M30
    31.7 mm48.2 mm5.8 mm to 6.2 mm591169A24400000———0
    M36
    37.7 mm58.2 mm5.8 mm to 6.2 mm191169A2490000———0
     
    Corrosion-Resistant Galvanized Steel
    1/4"
    0.260"0.487"0.062"10095160A21000000———0
    5/16"
    0.322"0.583"0.078"10095160A2150000———0
    3/8"
    0.385"0.705"0.094"10095160A2200000———0
    7/16"
    0.450"0.776"0.109"2595160A2250000———0
    1/2"
    0.512"0.869"0.125"5095160A2300000———0
    5/8"
    0.641"1.073"0.156"2595160A2400000———0
    3/4"
    0.766"1.265"0.188"2595160A25000000———0
    7/8"
    0.894"1.459"0.219"1095160A2600000———0
    1"
    1.024"1.656"0.250"1095160A2700000———0
    1 1/4"
    1.280"2.036"0.312"595160A28000000———0
    M6
    6.5 mm11.8 mm1.5 mm to 1.7 mm5091169A31000000———0
    M8
    8.5 mm14.8 mm1.9 mm to 2.1 mm5091169A32000000———0
    M10
    10.7 mm18.1 mm2.0 mm to 2.4 mm5091169A33000000———0
    M12
    12.7 mm21.1 mm2.3 mm to 2.7 mm2591169A34000000———0
    M16
    17.0 mm27.4 mm3.3 mm to 3.7 mm1091169A3500000———0
    M20
    21.2 mm33.6 mm3.8 mm to 4.2 mm191169A3600000———0
     
    Highly Corrosion-Resistant Zinc-Flake-Coated Steel
    No. 10
    0.200"0.334"0.047"255185N1510000———0
    1/4"
    0.260"0.487"0.062"255185N1280000———0
    5/16"
    0.322"0.583"0.078"255185N1290000———0
    3/8"
    0.385"0.680"0.094"105185N1310000———0
    7/16"
    0.450"0.776"0.109"105185N1320000———0
    1/2"
    0.512"0.869"0.125"105185N13300000———0
    9/16"
    0.574"0.965"0.141"55185N1340000———0
    5/8"
    0.641"1.073"0.156"55185N1350000———0
    3/4"
    0.766"1.265"0.188"15185N1360000———0
    7/8"
    0.894"1.459"0.219"15185N1370000———0
    1"
    1.024"1.656"0.250"15185N1380000———0
    1 1/4"
    1.280"2.036"0.312"15185N14100000———0
    M6
    6.5 mm11.8 mm1.5 mm to 1.7 mm2590491A1010000———0
    M8
    8.5 mm14.8 mm1.9 mm to 2.1 mm2590491A10200000———0
    M10
    10.7 mm18.1 mm2.0 mm to 2.4 mm2590491A10300000———0
     
    Aluminum
    No. 6
    0.148"0.250"0.031"10091013A7110000———0
    No. 8
    0.174"0.293"0.040"10091013A7150000———0
    No. 10
    0.200"0.334"0.047"10091013A7180000———0
    1/4"
    0.260"0.487"0.062"10091013A72100000———0
    5/16"
    0.322"0.583"0.078"5091013A72400000———0
    3/8"
    0.385"0.680"0.094"5091013A72700000———0
    1/2"
    0.512"0.869"0.125"1091013A7300000———0
    5/8"
    0.641"1.073"0.156"1091013A73300000———0
    3/4"
    0.766"1.265"0.188"1091013A73600000———0
     
    Highly Corrosion-Resistant Silicon Bronze
    No. 2
    0.094"0.172"0.020"10093496A4030000———0
    No. 3
    0.107"0.195"0.025"10093496A4040000———0
    No. 4
    0.120"0.209"0.025"10093496A40500001,00093496A00500000
    No. 6
    0.148"0.250"0.031"10093496A40700001,00093496A00700000
    No. 8
    0.174"0.293"0.040"10093496A40900001,00093496A00900000
    No. 10
    0.200"0.334"0.047"10093496A41500002,00093496A111000000
    No. 12
    0.227"0.377"0.056"10093496A41800000———0
    1/4"
    0.260"0.487"0.062"10093496A029000002,00093496A112000000
    5/16"
    0.322"0.583"0.078"5093496A030000001,00093496A113000000
    3/8"
    0.385"0.680"0.094"2593496A0310000050093496A114000000
    7/16"
    0.450"0.776"0.109"1093496A43200000———0
    1/2"
    0.512"0.869"0.125"1093496A4330000050093496A115000000
    5/8"
    0.641"1.073"0.156"593496A43500000———0
    3/4"
    0.766"1.265"0.188"593496A43600000———0
    1"
    1.024"1.656"0.250"593496A44500000———0
    M3
    3.4 mm6.2 mm0.7 mm to 0.9 mm10097093A20100000———0
    M4
    4.4 mm7.6 mm0.8 mm to 1.0 mm10097093A20200000———0
    M5
    5.4 mm9.2 mm1.1 mm to 1.3 mm10097093A20300000———0
    M6
    6.5 mm11.8 mm1.5 mm to 1.7 mm5097093A20400000———0
    M8
    8.5 mm14.8 mm1.9 mm to 2.1 mm2597093A20500000———0
    M10
    10.7 mm18.1 mm2.0 mm to 2.4 mm1097093A2060000———0
     
    High-Strength Highly Corrosion-Resistant K500 Nickel
    1/4"
    0.260"0.487"0.062" to 0.077"1091118A11200000———0
    5/16"
    0.322"0.583"0.078" to 0.097"591118A11600000———0
    3/8"
    0.385"0.680"0.094" to 0.115"591118A12000000———0
    1/2"
    0.512"0.869"0.125" to 0.151"191118A1280000———0
    5/8"
    0.641"1.073"0.156" to 0.189"191118A13200000———0
     

    Mil. Spec. Split Lock Washers

    Image of Product. Front orientation. Lock Washers. Mil. Spec., Split-Lock Washer.
    These washers are manufactured and tested to strict U.S. military standards for material and construction. As you tighten, the uneven ends bite into the nut or screw so it won't loosen due to mild vibration. While they don't hold as tightly as other lock washers, they are a great fit for electrical panels, light fixtures, and other light duty assemblies. Split lock washers are not reusable, and they only work with fasteners that have right-hand threads.
    Passivated 18-8 Stainless Steel—The choice for wet and outdoor environments, these washers won't rust when exposed to moisture. However, they can't hold up to the harsh chemicals that 316 stainless steel can.
    Black-Oxide 18-8 Stainless Steel—Typically chosen for their appearance, these washers have a dark, matte coating to create a finished look. They won't rust in wet and outdoor environments, but can't hold up to harsh chemicals as well as 316 stainless steel.
    Highly Corrosion-Resistant Passivated 316 Stainless Steel—Superior to 18-8 stainless steel, these washers won't degrade when exposed to harsh weather, salt water, and most chemicals.
    Highly Corrosion-Resistant Black-Oxide 316 Stainless Steel—Combines a finished appearance with the rust resistance of 316 stainless steel. Even if the coating wears off, these washers will hold up in just about any environment, including salt water and most chemicals.
    Zinc-Yellow-Chromate-Plated Steel—With the same corrosion resistance as zinc-plated steel, these withstand occasional exposure to moisture.
    Corrosion-Resistant Cadmium-Plated Steel—The finish creates a better barrier against rust than zinc plating for use in wet and outdoor environments.
    For Screw
    Size
    ID
    OD
    Thk.
    Mil. Spec.
    Pkg.
    Qty.
    Pkg.
    Passivated 18-8 Stainless Steel
    5/16"
    0.314"0.583"0.078"MS35338-1402591475A03000000
    3/8"
    0.377"0.680"0.094"MS35338-1412591475A03100000
    7/16"
    0.440"0.776"0.109"MS35338-1421091475A1160000
    1/2"
    0.502"0.869"0.125"MS35338-1431091475A0330000
    9/16"
    0.564"0.965"0.141"MS35338-1441091475A1590000
    5/8"
    0.628"1.073"0.156"MS35338-1451091475A03500000
    3/4"
    0.753"1.265"0.188"MS35338-146591475A04000000
    1"
    1.003"1.656"0.250"MS35338-148291475A1600000
    1 1/8"
    1.129"1.847"0.281"MS35338-149191475A1860000
    1 1/4"
    1.254"2.036"0.312"MS35338-150191475A1940000
     
    Black-Oxide 18-8 Stainless Steel
    5/16"
    0.314"0.583"0.078"MS35338-1405091475A4340000
    3/8"
    0.377"0.680"0.094"MS35338-1411091475A4390000
    7/16"
    0.440"0.776"0.109"MS35338-1421091475A4400000
    1/2"
    0.502"0.869"0.125"MS35338-1431091475A5070000
    9/16"
    0.564"0.965"0.141"MS35338-144291475A5080000
    5/8"
    0.628"1.073"0.156"MS35338-145291475A5090000
     
    Highly Corrosion-Resistant Passivated 316 Stainless Steel
    No. 2
    0.088"0.172"0.020"MS35338-13410091475A0150000
    No. 4
    0.114"0.209"0.025"MS35338-13510091475A0180000
    No. 6
    0.141"0.250"0.031"MS35338-13610091475A0200000
    No. 8
    0.167"0.293"0.040"MS35338-13710091475A0250000
    No. 10
    0.193"0.334"0.047"MS35338-13810091475A0270000
    1/4"
    0.252"0.487"0.062"MS35338-1395091475A02900000
    5/16"
    0.314"0.583"0.078"MS35338-1401091475A7100000
    3/8"
    0.377"0.680"0.094"MS35338-1411091475A7200000
    1/2"
    0.502"0.869"0.125"MS35338-143591475A7300000
    5/8"
    0.628"1.073"0.156"MS35338-145391475A7400000
    3/4"
    0.753"1.265"0.188"MS35338-146291475A7500000
     
    Highly Corrosion-Resistant Black-Oxide 316 Stainless Steel
    No. 2
    0.088"0.172"0.020"MS35338-13410091475A3770000
    No. 4
    0.114"0.209"0.025"MS35338-13510091475A3800000
    No. 6
    0.141"0.250"0.031"MS35338-13610091475A3840000
    No. 8
    0.167"0.293"0.040"MS35338-13710091475A3870000
    No. 10
    0.193"0.334"0.047"MS35338-13810091475A3910000
    1/4"
    0.252"0.487"0.062"MS35338-1395091475A3950000
    3/8"
    0.377"0.680"0.094"MS35338-1411091475A76000000
    1/2"
    0.502"0.869"0.125"MS35338-143591475A77000000
    3/4"
    0.753"1.265"0.188"MS35338-146291475A7800000
     
    Zinc-Yellow-Chromate-Plated Steel
    No. 2
    0.088"0.172"0.020"MS35338-3910091475A2350000
    No. 4
    0.114"0.209"0.025"MS35338-4010091475A2420000
    No. 6
    0.141"0.250"0.031"MS35338-4110091475A2570000
    No. 8
    0.167"0.293"0.040"MS35338-4210091475A2730000
    No. 10
    0.193"0.334"0.047"MS35338-4310091475A2740000
    1/4"
    0.252"0.487"0.062"MS35338-445091475A2830000
    5/16"
    0.314"0.583"0.078"MS35338-455091475A2890000
    3/8"
    0.377"0.680"0.094"MS35338-462591475A2930000
    7/16"
    0.440"0.776"0.109"MS35338-472591475A3040000
    1/2"
    0.502"0.869"0.125"MS35338-481091475A3280000
    9/16"
    0.564"0.965"0.141"MS35338-491091475A3310000
    5/8"
    0.628"1.073"0.156"MS35338-501091475A3420000
    3/4"
    0.753"1.265"0.188"MS35338-51591475A7900000
    7/8"
    0.878"1.459"0.219"MS35338-52591475A3460000
    1"
    1.003"1.656"0.250"MS35338-53391475A3480000
    1 1/8"
    1.129"1.847"0.281"MS35338-54391475A3530000
    1 1/4"
    1.254"2.036"0.312"MS35338-55291475A3690000
    1 3/8"
    1.379"2.219"0.344"MS35338-56291475A3730000
    1 1/2"
    1.504"2.419"0.375"MS35338-57191475A3760000
     
    Corrosion-Resistant Cadmium-Plated Steel
    No. 2
    0.088"0.172"0.020"MS35338-395091475A5110000
    No. 4
    0.114"0.209"0.025"MS35338-405091475A5170000
    No. 6
    0.141"0.250"0.031"MS35338-415091475A5230000
    No. 8
    0.167"0.293"0.040"MS35338-425091475A5300000
    No. 10
    0.193"0.334"0.047"MS35338-435091475A5310000
    1/4"
    0.252"0.487"0.062"MS35338-445091475A5350000
    5/16"
    0.314"0.583"0.078"MS35338-455091475A5410000
    3/8"
    0.377"0.680"0.094"MS35338-462591475A5440000
    7/16"
    0.440"0.776"0.109"MS35338-472591475A5480000
    1/2"
    0.502"0.869"0.125"MS35338-481091475A5520000
    9/16"
    0.564"0.965"0.141"MS35338-49591475A5530000
    5/8"
    0.628"1.073"0.156"MS35338-50291475A8200000
     

    Split Lock Washers for Socket Head Screws

    Image of Product. Front orientation. Lock Washers. Split-Lock Washer, For Socket Head Screws.
    Stop socket head screws from loosening due to mild vibration. These washers have a small diameter to fit under screws with narrow heads, but are still thick enough to keep fasteners secure. While they're not as vibration resistant as other lock washers, they are a great fit for electrical panels, light fixtures, and other light duty assemblies. Split lock washers are not reusable, and they only work with fasteners that have right-hand threads. Also known as high-collar lock washers.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these washers won't rust when exposed to moisture. However, they can't hold up to the harsh chemicals that 316 stainless steel can.
    Black-Oxide 18-8 Stainless Steel—Typically chosen for their appearance, these washers have a dark, matte coating to create a finished look. They won't rust in wet and outdoor environments, but can't hold up to harsh chemicals as well as 316 stainless steel.
    Highly Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these washers won't degrade when exposed to harsh weather, salt water, and most chemicals.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    Zinc-Yellow-Chromate-Plated Steel—With the same corrosion resistance as zinc-plated steel, these withstand occasional exposure to moisture.
    Black-Oxide Steel—Best for dry environments since moisture will cause these washers to rust. They have a dark, matte appearance.
    Steel—Best for dry environments since moisture will cause these washers to rust.
    For Screw
    Size
    ID
    OD
    Thk.
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    No. 2
    0.094"0.142"0.022"10098437A18000000
    No. 4
    0.120"0.173"0.022"10098437A1020000
    No. 5
    0.133"0.202"0.030"10098437A1600000
    No. 6
    0.148"0.216"0.030"10098437A1040000
    No. 8
    0.174"0.267"0.047"10098437A1060000
    No. 10
    0.200"0.294"0.047"10098437A1080000
    No. 12
    0.227"0.331"0.078"10098437A1900000
    1/4"
    0.260"0.363"0.078"10098437A1100000
    5/16"
    0.322"0.457"0.093"5098437A1120000
    3/8"
    0.385"0.550"0.125"5098437A11500000
    7/16"
    0.450"0.644"0.140"5098437A17000000
    1/2"
    0.512"0.733"0.172"2598437A1300000
    5/8"
    0.641"0.917"0.203"1098437A1350000
    3/4"
    0.766"1.105"0.218"1098437A14000000
    7/8"
    0.894"1.291"0.234"598437A15000000
    1"
    1.024"1.478"0.250"198437A2100000
    M3
    3.4 mm5.6 mm0.9 mm to 1.1 mm10091111A1180000
    M3.5
    3.9 mm6.1 mm0.9 mm to 1.1 mm10091111A1190000
    M4
    4.4 mm7.0 mm1.1 mm to 1.3 mm10091111A1210000
    M5
    5.4 mm8.8 mm1.5 mm to 1.7 mm10091111A1240000
    M6
    6.5 mm9.9 mm1.5 mm to 1.7 mm10091111A1290000
    M8
    8.5 mm12.7 mm1.9 mm to 2.1 mm10091111A13200000
    M10
    10.7 mm16.0 mm2.3 mm to 2.7 mm10091111A13500000
    M12
    12.7 mm18.0 mm2.3 mm to 2.7 mm5091111A13800000
    M14
    14.7 mm21.1 mm2.8 mm to 3.2 mm1091111A1410000
    M16
    17.0 mm24.4 mm3.3 mm to 3.7 mm1091111A1430000
    M18
    19.0 mm26.4 mm3.3 mm to 3.7 mm1091111A1450000
    M20
    21.2 mm30.6 mm4.3 mm to 4.7 mm1091111A1470000
    M22
    23.5 mm32.9 mm4.3 mm to 4.7 mm591111A14900000
    M24
    25.5 mm35.9 mm4.8 mm to 5.2 mm591111A1510000
    M30
    31.7 mm44.1 mm5.8 mm to 6.2 mm191111A15500000
     
    Black-Oxide 18-8 Stainless Steel
    No. 4
    0.120"0.173"0.022"10093711A10000000
    No. 6
    0.148"0.216"0.030"10093711A20000000
    No. 8
    0.174"0.267"0.047"10093711A30000000
    No. 10
    0.200"0.294"0.047"5093711A4000000
    1/4"
    0.260"0.363"0.078"5093711A50000000
    5/16"
    0.322"0.457"0.093"2593711A6000000
    3/8"
    0.385"0.550"0.125"1093711A7000000
    1/2"
    0.512"0.733"0.172"1093711A8000000
    5/8"
    0.641"0.917"0.203"593711A90000000
    3/4"
    0.766"1.105"0.218"193711A9100000
     
    Highly Corrosion-Resistant 316 Stainless Steel
    No. 2
    0.094"0.142"0.022"10094241A2100000
    No. 4
    0.120"0.173"0.022"10094241A2200000
    No. 5
    0.133"0.202"0.030"10094241A2300000
    No. 6
    0.148"0.216"0.030"10094241A2400000
    No. 8
    0.174"0.267"0.047"10094241A2500000
    No. 10
    0.200"0.294"0.047"10094241A2600000
    1/4"
    0.260"0.363"0.078"10094241A2700000
    5/16"
    0.322"0.457"0.093"5094241A2800000
    3/8"
    0.385"0.550"0.125"5094241A29000000
    7/16"
    0.450"0.644"0.140"2594241A31000000
    1/2"
    0.512"0.733"0.172"1094241A3200000
    5/8"
    0.641"0.917"0.203"1094241A33000000
    3/4"
    0.766"1.105"0.218"594241A34000000
    7/8"
    0.894"1.291"0.234"194241A3500000
    1"
    1.024"1.478"0.250"194241A3600000
    1 1/4"
    1.280"1.790"0.313"194241A3700000
    1 1/2"
    1.534"2.159"0.375"194241A38000000
    M3
    3.4 mm5.6 mm0.9 mm to 1.1 mm10094241A5100000
    M4
    4.4 mm7.0 mm1.1 mm to 1.3 mm10094241A5200000
    M5
    5.4 mm8.8 mm1.5 mm to 1.7 mm10094241A5300000
    M6
    6.5 mm9.9 mm1.5 mm to 1.7 mm10094241A5400000
    M8
    8.5 mm12.7 mm1.9 mm to 2.1 mm5094241A5500000
    M10
    10.7 mm16.0 mm2.3 mm to 2.7 mm5094241A56000000
    M12
    12.7 mm18.0 mm2.3 mm to 2.7 mm2594241A5700000
    M14
    14.7 mm21.1 mm2.8 mm to 3.2 mm1094241A5800000
    M16
    17.0 mm24.4 mm3.3 mm to 3.7 mm1094241A5900000
    M18
    19.0 mm26.4 mm3.3 mm to 3.7 mm1094241A6100000
    M20
    21.2 mm30.6 mm4.3 mm to 4.7 mm194241A6200000
    M22
    23.5 mm32.9 mm4.3 mm to 4.7 mm194241A6300000
    M24
    25.5 mm35.9 mm4.8 mm to 5.2 mm194241A6400000
    M30
    31.7 mm44.1 mm5.8 mm to 6.2 mm194241A6500000
     
    Zinc-Plated Steel
    No. 6
    0.148"0.216"0.030"5092961A1110000
    No. 8
    0.174"0.267"0.042"5092961A1120000
    No. 10
    0.200"0.294"0.047"5092961A1130000
    1/4"
    0.260"0.363"0.078"5092961A1140000
    5/16"
    0.322"0.457"0.093"5092961A1150000
    3/8"
    0.385"0.550"0.125"5092961A1160000
    7/16"
    0.450"0.644"0.140"2592961A11700000
    1/2"
    0.512"0.733"0.172"2592961A1180000
    5/8"
    0.641"0.917"0.203"2592961A11900000
    3/4"
    0.766"1.105"0.218"1092961A1200000
    7/8"
    0.984"1.291"0.234"592961A1210000
    1"
    1.024"1.478"0.250"192961A12200000
    M3
    3.4 mm5.6 mm0.9 mm to 1.1 mm10093837A1100000
    M4
    4.4 mm7.0 mm1.1 mm to 1.3 mm10093837A1200000
    M5
    5.4 mm8.8 mm1.5 mm to 1.7 mm10093837A1300000
    M6
    6.5 mm9.9 mm1.5 mm to 1.7 mm10093837A1400000
    M8
    8.5 mm12.7 mm1.9 mm to 2.1 mm10093837A2300000
    M10
    10.7 mm16.0 mm2.3 mm to 2.7 mm10093837A15000000
    M12
    12.7 mm18.0 mm2.3 mm to 2.7 mm10093837A24000000
    M14
    14.7 mm21.1 mm2.8 mm to 3.2 mm5093837A2500000
    M16
    17.0 mm24.4 mm3.3 mm to 3.7 mm2593837A1600000
    M18
    19.0 mm26.4 mm3.3 mm to 3.7 mm2593837A17000000
    M20
    21.2 mm30.6 mm4.3 mm to 4.7 mm1093837A1800000
    M24
    25.5 mm35.9 mm4.8 mm to 5.2 mm1093837A1900000
    M27
    28.5 mm38.9 mm4.8 mm to 5.2 mm593837A2600000
    M30
    31.7 mm44.1 mm5.8 mm to 6.2 mm593837A21000000
    M36
    37.7 mm52.2 mm6.7 mm to 7.3 mm193837A2200000
     
    Zinc-Yellow-Chromate-Plated Steel
    M4
    4.1 mm7.0 mm1.1 mm to 1.3 mm10093837A3100000
    M5
    5.1 mm8.8 mm1.5 mm to 1.7 mm2593837A32000000
    M6
    6.1 mm9.9 mm1.5 mm to 1.7 mm10093837A3300000
    M8
    8.1 mm12.7 mm1.9 mm to 2.1 mm10093837A3400000
    M10
    10.2 mm16.0 mm2.3 mm to 2.7 mm10093837A35000000
    M12
    12.2 mm18.0 mm2.3 mm to 2.7 mm10093837A36000000
    M16
    16.2 mm24.4 mm3.3 mm to 3.7 mm2593837A37000000
     
    Black-Oxide Steel
    No. 4
    0.117"0.173"0.022"5092962A2100000
    No. 6
    0.145"0.216"0.030"5092962A2200000
    No. 8
    0.174"0.267"0.042"5092962A1110000
    No. 10
    0.200"0.294"0.047"5092962A1120000
    1/4"
    0.260"0.363"0.078"5092962A1130000
    5/16"
    0.322"0.457"0.093"5092962A1140000
    3/8"
    0.385"0.550"0.125"1092962A1150000
    7/16"
    0.450"0.644"0.140"2592962A1160000
    1/2"
    0.512"0.733"0.172"2592962A1170000
    5/8"
    0.641"0.917"0.203"1092962A11800000
    3/4"
    0.766"1.105"0.218"592962A1190000
    7/8"
    0.984"1.291"0.234"592962A1200000
    1"
    1.024"1.478"0.250"192962A1210000
    1 1/8"
    1.153"1.663"0.313"192962A1220000
    1 1/4"
    1.280"1.790"0.313"192962A1230000
    M3
    3.4 mm5.6 mm0.9 mm to 1.1 mm10091190A5100000
    M3.5
    3.9 mm6.1 mm0.9 mm to 1.1 mm10091190A5150000
    M4
    4.4 mm7.0 mm1.1 mm to 1.3 mm10091190A5200000
    M5
    5.4 mm8.8 mm1.5 mm to 1.7 mm10091190A5300000
    M6
    6.5 mm9.9 mm1.5 mm to 1.7 mm10091190A5400000
    M8
    8.5 mm12.7 mm1.9 mm to 2.1 mm10091190A5500000
    M10
    10.7 mm16.0 mm2.3 mm to 2.7 mm10091190A56000000
    M12
    12.7 mm18.0 mm2.3 mm to 2.7 mm10091190A57000000
    M14
    14.7 mm21.1 mm2.8 mm to 3.2 mm10091190A58000000
    M16
    17.0 mm24.4 mm3.3 mm to 3.7 mm5091190A59000000
    M18
    19.0 mm26.4 mm3.3 mm to 3.7 mm2591190A60000000
    M20
    21.2 mm30.6 mm4.3 mm to 4.7 mm2591190A61000000
    M22
    23.5 mm32.9 mm4.3 mm to 4.7 mm1091190A6200000
    M24
    25.5 mm35.9 mm4.8 mm to 5.2 mm1091190A6300000
    M27
    28.5 mm38.9 mm4.8 mm to 5.2 mm591190A6500000
    M30
    31.7 mm44.1 mm5.8 mm to 6.2 mm591190A6700000
    M36
    37.7 mm52.2 mm6.7 mm to 7.3 mm191190A6900000
    M42
    43.7 mm60.2 mm7.7 mm to 8.3 mm191190A66000000
    M48
    50.5 mm67.0 mm7.7 mm to 8.3 mm191190A64000000
     
    Steel
    No. 4
    0.120"0.173"0.022"10090073A0050000
    No. 5
    0.133"0.202"0.030"10090073A0060000
    No. 6
    0.148"0.216"0.030"10090073A0070000
    No. 10
    0.200"0.294"0.047"10090073A0110000
    1/4"
    0.260"0.363"0.078"10090073A0290000
    5/16"
    0.322"0.457"0.093"10090073A0300000
    3/8"
    0.385"0.550"0.125"10090073A2310000
    7/16"
    0.450"0.644"0.140"10090073A23400000
    1/2"
    0.512"0.733"0.172"10090073A23700000
    5/8"
    0.641"0.917"0.203"5090073A24000000
    3/4"
    0.766"1.105"0.218"2590073A24300000
    7/8"
    0.894"1.291"0.234"2590073A24600000
    1"
    1.024"1.478"0.250"1090073A0380000
    1 1/8"
    1.153"1.663"0.313"590073A33300000
    1 1/4"
    1.280"1.790"0.313"1090073A04000000
    1 1/2"
    1.534"2.159"0.375"590073A04200000
     

    Curved Spring Lock Washers

    Image of Product. Front orientation. Lock Washers. Curved Washer, Spring Lock Washer.
    The curvy, spring-like shape adds a small amount of tension to prevent nuts and screws from backing out due to mild vibration. These washers also flex slightly to compensate for uneven surfaces. While more secure than a standard flat washer, these have the least amount of gripping power of all our lock washers. They are best suited for electrical panels, light fixtures, and other light duty assemblies. These washers hold their shape when untightened, so you can reuse them a handful of times without losing strength.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these washers won't rust when exposed to moisture. However, they can't hold up to the harsh chemicals that 316 stainless steel can.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    Zinc-Yellow-Chromate-Plated Steel—With the same corrosion resistance as zinc-plated steel, these withstand occasional exposure to moisture.
    Steel—Best for dry environments since moisture will cause these washers to rust.
    DIN 128A—These washers have split ends that bite into your material surface for a tighter hold than other curved washers.
    For Screw
    Size
    ID,
    mm
    OD,
    mm
    Thk.,
    mm
    Overall
    Ht., mm
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    M2.5
    2.65.10.50.9DIN 128A10097093A13800000
    M3
    3.16.20.61.1DIN 128A10097093A1390000
    M4
    4.17.60.71.2DIN 128A10097093A1410000
    M5
    5.19.20.91.5DIN 128A10097093A14200000
    M6
    6.111.81.22.0DIN 128A10097093A14300000
    M8
    8.114.81.52.5DIN 128A5097093A1440000
    M10
    10.218.11.72.9DIN 128A5097093A14500000
    M12
    12.221.12.03.4DIN 128A5097093A14600000
    M14
    14.224.12.33.9DIN 128A2597093A14700000
    M16
    16.227.42.74.5DIN 128A2097093A14800000
    M18
    18.229.42.74.5DIN 128A1097093A14900000
    M20
    20.233.63.05.1DIN 128A1097093A15100000
    M22
    22.535.93.05.1DIN 128A597093A1520000
    M24
    24.540.03.86.5DIN 128A597093A15300000
     
    Zinc-Plated Steel
    M2.5
    2.65.10.50.9DIN 128A10097093A1220000
    M3
    3.16.20.61.1DIN 128A10097093A1230000
    M4
    4.17.60.71.2DIN 128A10097093A1240000
    M5
    5.19.20.91.5DIN 128A10097093A1250000
    M6
    6.111.81.22.0DIN 128A10097093A1260000
    M8
    8.114.81.52.5DIN 128A10097093A12700000
    M10
    10.218.11.72.9DIN 128A10097093A12800000
    M12
    12.221.12.03.4DIN 128A5097093A12900000
    M14
    14.224.12.33.9DIN 128A2597093A13100000
    M16
    16.227.42.74.5DIN 128A2597093A13200000
    M18
    18.229.42.74.5DIN 128A1097093A1330000
    M20
    20.233.63.05.1DIN 128A1097093A13400000
    M22
    22.535.93.05.1DIN 128A1097093A13500000
    M24
    24.540.03.86.5DIN 128A1097093A13600000
    M30
    30.548.25.89.5DIN 128A197093A1370000
     
    Zinc-Yellow-Chromate-Plated Steel
    M3
    3.16.20.61.1DIN 128A10096982A1360000
    M3.5
    3.66.70.61.1DIN 128A10096982A1370000
    M4
    4.17.60.71.2DIN 128A10096982A1380000
    M5
    5.19.20.91.5DIN 128A10096982A1390000
    M6
    6.111.81.22DIN 128A10096982A1410000
    M8
    8.114.81.52.5DIN 128A10096982A1420000
    M10
    10.218.11.72.9DIN 128A10096982A14300000
    M12
    12.221.12.03.4DIN 128A5096982A1440000
    M14
    14.224.12.33.9DIN 128A2596982A14500000
    M16
    16.227.42.74.5DIN 128A1096982A14600000
    M20
    20.233.63.05.1DIN 128A1096982A14700000
     
    Steel
    M2.5
    2.34.60.61.1DIN 690520091169A31100000
    M3
    2.75.60.71.3DIN 690520091169A31200000
    M3
    3.16.20.61.1DIN 128A10097093A1110000
    M4
    3.67.00.81.4DIN 690520091169A31400000
    M4
    4.17.60.71.2DIN 128A10097093A1120000
    M5
    4.68.61.01.7DIN 690510091169A31500000
    M5
    5.19.20.91.5DIN 128A10097093A1130000
    M6
    5.511.01.32.2DIN 69055091169A31600000
    M6
    6.111.81.22.0DIN 128A5097093A1140000
    M8
    7.414.01.62.8DIN 69055091169A31700000
    M8
    8.114.81.52.5DIN 128A5097093A1150000
    M10
    9.317.01.83.2DIN 69051091169A31800000
    M10
    10.218.11.72.9DIN 128A2597093A11600000
    M12
    11.019.72.13.7DIN 69051091169A31900000
    M12
    12.221.12.03.4DIN 128A1097093A1170000
    M16
    16.227.42.74.5DIN 128A1097093A1180000
    M20
    20.233.63.05.1DIN 128A597093A1190000
    M24
    24.540.03.86.5DIN 128A597093A12100000
     

    Coil Lock Washers

    Image of Product. Front orientation. Lock Washers. Coil Washer.
    Washers flatten under pressure and push against the nut or screw to stop it from backing out. The double coil adds more tension than split lock washers for a tighter hold on materials that contract and expand, such as plastic and wood. These washers are reusable a handful of times, but their holding power decreases with each use.
    Corrosion-Resistant Galvanized Steel—These washers combine the strength of steel with the rust resistance of stainless steel. They're an alternative to 18-8 stainless steel in wet and outdoor environments, but they won't hold up to salt water and chemicals.
    For Screw
    Size
    ID
    OD
    Thk.
    Pkg.
    Qty.
    Pkg.
    Corrosion-Resistant Galvanized Steel
    3/8"
    0.381"0.680"0.094"592353A11000000
    1/2"
    0.507"0.869"0.125"192353A1200000
    5/8"
    0.634"1.073"0.156"192353A1300000
    3/4"
    0.759"1.265"0.188"192353A1400000
     

    Wave Spring Lock Washers

    Image of Product. Front orientation. Lock Washers. Spring Lock Washer, Wave Washer.
    The wavy shape flexes like a spring to keep nuts and screws secure on slightly uneven surfaces. These washers add a small amount of tension to stop fasteners from backing out due to mild vibration. While they don't hold as well as other lock washers, they do grip slightly better than curved washers. They work best in electrical panels, light fixtures, and other light duty assemblies. Since these washers hold their shape when untightened, you can reuse them a handful of times without losing strength.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these washers won't rust when exposed to moisture. However, they can't hold up to the harsh chemicals that 316 stainless steel can.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    DIN 128B—These washers have split ends that bite into your material surface for a tighter hold than other wave washers.
    For Screw
    Size
    No. of
    Waves
    ID,
    mm
    OD,
    mm
    Thk.,
    mm
    Overall
    Ht., mm
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    M4
    14.47.60.71.4DIN 128B5097093A17400000
    M5
    15.49.20.91.7DIN 128B2597093A1750000
    M6
    16.511.81.22.2DIN 128B2597093A1760000
    M8
    18.514.81.52.7DIN 128B2597093A1770000
    M10
    110.718.11.73.1DIN 128B2597093A17800000
    M12
    112.721.11.93.6DIN 128B1097093A1790000
    M16
    117.027.42.65.1DIN 128B197093A1820000
     
    Zinc-Plated Steel
    M3
    13.16.20.61.1DIN 128B10097093A1550000
    M4
    14.17.60.71.2DIN 128B10097093A1560000
    M5
    15.19.20.91.5DIN 128B10097093A1570000
    M6
    16.111.81.22.0DIN 128B10097093A1580000
    M8
    18.114.81.52.5DIN 128B10097093A15900000
    M10
    110.218.11.72.9DIN 128B5097093A16100000
    M12
    112.221.12.03.4DIN 128B2597093A1620000
    M14
    114.224.12.43.9DIN 128B2597093A16300000
    M16
    116.227.42.74.5DIN 128B2597093A16400000
    M18
    118.229.42.74.5DIN 128B1097093A1650000
    M22
    122.535.93.05.1DIN 128B597093A1670000
    M24
    124.540.03.86.5DIN 128B597093A1680000
     

    Split Lock Washer Assortments

    Image of Product. Front orientation. Lock Washers. Sold as Assortments, Split-Lock Washer.
    Keep a collection of common lock washers on hand to stop nuts and screws from loosening due to mild vibration. These washers have split ends that bite into the fastener to keep it secure. While they're not as vibration resistant as other lock washers, they are a great fit for electrical panels, light fixtures, and other light duty assemblies. Split lock washers are not reusable, and they only work with fasteners that have right-hand threads.
    Labels in the lid include our part numbers, so it's easy to replenish the assortments.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these washers won't rust when exposed to moisture. However, they can't hold up to the harsh chemicals that 316 stainless steel can.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    Steel—Best for dry environments since moisture will cause these washers to rust.
    No. of
    Pieces
    Sizes Included
    Container
    Type
    Each
    18-8 Stainless Steel
    350For No. 8 to 1/2" Screw SizesPlastic Box92155A320000000
    755For M3 to M20 Screw SizesPlastic Box91170A409000000
    1,350For No. 4 to 1" Screw SizesMetal Box92155A212000000
     
    Zinc-Plated Steel
    350For No. 8 to 1/2" Screw SizesPlastic Box91765A22400000
    1,350For No. 4 to 1" Screw SizesMetal Box91765A112000000
     
    Steel
    755For M3 to M20 Screw SizesPlastic Box91170A10900000
     
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