External-Tooth Lock Washers

147 products

External-Tooth Lock Washers

External-Tooth Lock Washers are critical components in preventing fastener loosening due to vibration, thermal expansion, or dynamic loads. Our selection includes split, tooth, and wedge-lock designs manufactured from high-strength materials like spring steel and stainless steel. These washers provide a reliable mechanical lock by creating tension or biting into the mating surface, ensuring long-term structural integrity in automotive, aerospace, and heavy machinery applications. Engineered to meet rigorous industrial standards, they offer exceptional performance in high-vibration environments.

Part Number Material For Screw Size ID OD Thickness Washer Type Hardness Specifications Met Fastener Strength Grade/Class
1313FA00067 18-8 Stainless Steel 1/2" 0.513" 0.9" 0.037-0.045" Tooth Lock Not Rated ASME B18.21.1 -
1313FA00054 18-8 Stainless Steel 1/4" 0.256" 0.51" 0.023-0.028" Tooth Lock Not Rated ASME B18.21.1 -
1313FA00059 18-8 Stainless Steel 3/4" 0.768" 1.26" 0.047-0.055" Tooth Lock Rockwell B88 ASME B18.21.1 -
1313FA00056 18-8 Stainless Steel 3/8" 0.384" 0.694" 0.032-0.040" Tooth Lock Not Rated ASME B18.21.1 -
1313FA00055 18-8 Stainless Steel 5/16" 0.32" 0.61" 0.028-0.034" Tooth Lock Not Rated ASME B18.21.1 -
1313FA00058 18-8 Stainless Steel 5/8" 0.641" 1.07" 0.042-0.050" Tooth Lock Rockwell B88 ASME B18.21.1 -
1316FA00006 18-8 Stainless Steel M10 10.5 mm 18 mm 0.8-1.0 mm Tooth Lock Not Rated DIN 6798 -
1314FA00016 18-8 Stainless Steel M10 10.5 mm 18 mm 0.8-1.0 mm Tooth Lock - DIN 6797 -
1316FA00007 18-8 Stainless Steel M12 13 mm 20.5 mm 0.9-1.2 mm Tooth Lock Not Rated DIN 6798 -
1314FA00017 18-8 Stainless Steel M12 13 mm 20.5 mm 0.9-1.2 mm Tooth Lock - DIN 6797 -
1314FA00018 18-8 Stainless Steel M14 15 mm 24 mm 0.9-1.2 mm Tooth Lock - DIN 6797 -
1316FA00008 18-8 Stainless Steel M16 17 mm 26 mm 1.0-1.4 mm Tooth Lock Not Rated DIN 6798 -
1314FA00028 18-8 Stainless Steel M16 17.3 mm 26 mm 1.0-1.4 mm Tooth Lock - DIN 6797 -
1314FA00019 18-8 Stainless Steel M18 19 mm 30 mm 1.2-1.6 mm Tooth Lock - DIN 6797 -
1316FA00011 18-8 Stainless Steel M2 2.2 mm 4.5 mm 0.2-0.4 mm Tooth Lock Not Rated DIN 6798 -
1314FA00025 18-8 Stainless Steel M2 2.3 mm 4.5 mm 0.2-0.4 mm Tooth Lock - DIN 6797 -
1316FA00012 18-8 Stainless Steel M2.5 2.7 mm 5.5 mm 0.3-0.5 mm Tooth Lock Not Rated DIN 6798 -
1314FA00026 18-8 Stainless Steel M2.5 2.8 mm 5.5 mm 0.3-0.5 mm Tooth Lock - DIN 6797 -
1316FA00009 18-8 Stainless Steel M20 21 mm 33 mm 1.2-1.5 mm Tooth Lock Not Rated DIN 6798 -
1314FA00020 18-8 Stainless Steel M20 21 mm 33 mm 1.2-1.6 mm Tooth Lock - DIN 6797 -
1314FA00022 18-8 Stainless Steel M22 23 mm 36 mm 1.3-1.7 mm Tooth Lock - DIN 6797 -
1314FA00023 18-8 Stainless Steel M24 25 mm 38 mm 1.3-1.7 mm Tooth Lock - DIN 6797 -
1316FA00010 18-8 Stainless Steel M24 25 mm 38 mm 1.4-1.6 mm Tooth Lock Not Rated DIN 6798 -
1316FA00001 18-8 Stainless Steel M3 3.2 mm 6 mm 0.3-0.5 mm Tooth Lock Not Rated DIN 6798 -
1314FA00011 18-8 Stainless Steel M3 3.2 mm 6 mm 0.3-0.5 mm Tooth Lock - DIN 6797 -
1314FA00027 18-8 Stainless Steel M3.5 3.9 mm 7 mm 0.4-0.6 mm Tooth Lock - DIN 6797 -
1314FA00024 18-8 Stainless Steel M30 31 mm 48 mm 1.4-1.8 mm Tooth Lock - DIN 6797 -
1316FA00002 18-8 Stainless Steel M4 4.3 mm 8 mm 0.4-0.6 mm Tooth Lock Not Rated DIN 6798 -
1314FA00012 18-8 Stainless Steel M4 4.3 mm 8 mm 0.4-0.6 mm Tooth Lock - DIN 6797 -
1316FA00003 18-8 Stainless Steel M5 5.3 mm 10 mm 0.5-0.7 mm Tooth Lock Not Rated DIN 6798 -
1314FA00013 18-8 Stainless Steel M5 5.3 mm 10 mm 0.5-0.7 mm Tooth Lock - DIN 6797 -
1316FA00004 18-8 Stainless Steel M6 6.4 mm 11 mm 0.6-0.8 mm Tooth Lock Not Rated DIN 6798 -
1314FA00014 18-8 Stainless Steel M6 6.4 mm 11 mm 0.6-0.8 mm Tooth Lock - DIN 6797 -
1314FA00021 18-8 Stainless Steel M7 7.4 mm 12.5 mm 0.7-0.9 mm Tooth Lock - DIN 6797 -
1316FA00005 18-8 Stainless Steel M8 8.4 mm 15 mm 0.7-0.9 mm Tooth Lock Not Rated DIN 6798 -
1314FA00015 18-8 Stainless Steel M8 8.4 mm 15 mm 0.7-0.9 mm Tooth Lock - DIN 6797 -
1313FA00053 18-8 Stainless Steel No. 10 0.195" 0.41" 0.018-0.024" Tooth Lock Not Rated ASME B18.21.1 -
1313FA00066 18-8 Stainless Steel No. 12 0.221" 0.475" 0.020-0.027" Tooth Lock Not Rated ASME B18.21.1 -
1313FA00057 18-8 Stainless Steel No. 2 0.086" 0.189" 0.010-0.013" Tooth Lock Rockwell B88 ASME B18.21.1 -
1313FA00050 18-8 Stainless Steel No. 4 0.115" 0.26" 0.012-0.018" Tooth Lock Not Rated ASME B18.21.1 -
1313FA00051 18-8 Stainless Steel No. 6 0.141" 0.32" 0.016-0.022" Tooth Lock Not Rated ASME B18.21.1 -
1313FA00052 18-8 Stainless Steel No. 8 0.168" 0.381" 0.018-0.023" Tooth Lock Not Rated ASME B18.21.1 -
1313FA00008 316 Stainless Steel 1/2" 0.513" 0.9" 0.037-0.045" Tooth Lock Not Rated ASME B18.21.1 -
1313FA00005 316 Stainless Steel 1/4" 0.256" 0.51" 0.023-0.028" Tooth Lock Not Rated ASME B18.21.1 -
1313FA00007 316 Stainless Steel 3/8" 0.384" 0.694" 0.032-0.040" Tooth Lock Not Rated ASME B18.21.1 -
1313FA00006 316 Stainless Steel 5/16" 0.32" 0.61" 0.028-0.034" Tooth Lock Not Rated ASME B18.21.1 -
1314FA00006 316 Stainless Steel M10 10.5 mm 18 mm 0.8-1.0 mm Tooth Lock - DIN 6797 -
1314FA00007 316 Stainless Steel M12 13 mm 20.5 mm 0.9-1.2 mm Tooth Lock - DIN 6797 -
1314FA00008 316 Stainless Steel M14 15 mm 24 mm 0.9-1.2 mm Tooth Lock - DIN 6797 -
1314FA00009 316 Stainless Steel M16 17.3 mm 26 mm 1.0-1.4 mm Tooth Lock - DIN 6797 -
1314FA00010 316 Stainless Steel M20 21 mm 33 mm 1.2-1.6 mm Tooth Lock - DIN 6797 -
1314FA00001 316 Stainless Steel M3 3.2 mm 6 mm 0.3-0.5 mm Tooth Lock - DIN 6797 -
1314FA00002 316 Stainless Steel M4 4.3 mm 8 mm 0.4-0.6 mm Tooth Lock - DIN 6797 -
1314FA00003 316 Stainless Steel M5 5.3 mm 10 mm 0.5-0.7 mm Tooth Lock - DIN 6797 -
1314FA00004 316 Stainless Steel M6 6.4 mm 11 mm 0.6-0.8 mm Tooth Lock - DIN 6797 -
1314FA00005 316 Stainless Steel M8 8.4 mm 15 mm 0.7-0.9 mm Tooth Lock - DIN 6797 -
1313FA00004 316 Stainless Steel No. 10 0.195" 0.41" 0.018-0.024" Tooth Lock Not Rated ASME B18.21.1 -
1313FA00001 316 Stainless Steel No. 4 0.115" 0.26" 0.012-0.018" Tooth Lock Not Rated ASME B18.21.1 -
1313FA00002 316 Stainless Steel No. 6 0.141" 0.32" 0.016-0.022" Tooth Lock Not Rated ASME B18.21.1 -
1313FA00003 316 Stainless Steel No. 8 0.168" 0.381" 0.018-0.023" Tooth Lock Not Rated ASME B18.21.1 -
1313FA00071 400 Series Stainless Steel 1/2" 0.513" 0.9" 0.037-0.045" Tooth Lock Rockwell C34 ASME B18.21.1 -
1313FA00082 400 Series Stainless Steel 1/4" 0.256" 0.51" 0.023-0.028" Tooth Lock Rockwell C34 ASME B18.21.1 -
1313FA00073 400 Series Stainless Steel 3/4" 0.768" 1.26" 0.047-0.055" Tooth Lock Rockwell C34 ASME B18.21.1 -
1313FA00069 400 Series Stainless Steel 3/8" 0.384" 0.694" 0.032-0.040" Tooth Lock Rockwell C34 ASME B18.21.1 -
1313FA00068 400 Series Stainless Steel 5/16" 0.32" 0.61" 0.028-0.034" Tooth Lock Rockwell C34 ASME B18.21.1 -
1313FA00072 400 Series Stainless Steel 5/8" 0.641" 1.07" 0.042-0.050" Tooth Lock Rockwell C34 ASME B18.21.1 -
1313FA00070 400 Series Stainless Steel 7/16" 0.448" 0.76" 0.032-0.040" Tooth Lock Rockwell C34 ASME B18.21.1 -
1313FA00080 400 Series Stainless Steel No. 10 0.195" 0.41" 0.018-0.024" Tooth Lock Rockwell C34 ASME B18.21.1 -
1313FA00081 400 Series Stainless Steel No. 12 0.221" 0.475" 0.020-0.027" Tooth Lock Rockwell C34 ASME B18.21.1 -
1313FA00074 400 Series Stainless Steel No. 2 0.096" 0.195" 0.010-0.016" Tooth Lock Rockwell C34 - -
1313FA00075 400 Series Stainless Steel No. 3 0.102" 0.235" 0.010-0.016" Tooth Lock Rockwell C34 ASME B18.21.1 -
1313FA00076 400 Series Stainless Steel No. 4 0.115" 0.26" 0.012-0.018" Tooth Lock Rockwell C34 ASME B18.21.1 -
1313FA00077 400 Series Stainless Steel No. 5 0.129" 0.285" 0.014-0.020" Tooth Lock Rockwell C34 ASME B18.21.1 -
1313FA00078 400 Series Stainless Steel No. 6 0.141" 0.32" 0.016-0.022" Tooth Lock Rockwell C34 ASME B18.21.1 -
1313FA00079 400 Series Stainless Steel No. 8 0.168" 0.381" 0.018-0.023" Tooth Lock Rockwell C34 ASME B18.21.1 -
1313FA00049 410 Stainless Steel 1" 1.025" 1.62" 0.059-0.067" Tooth Lock Rockwell C34 ASME B18.21.1 -
1313FA00048 410 Stainless Steel 7/8" 0.897" 1.41" 0.052-0.060" Tooth Lock Rockwell C34 ASME B18.21.1 -
1313FA00047 410 Stainless Steel 9/16" 0.576" 0.985" 0.037-0.045" Tooth Lock Rockwell C34 ASME B18.21.1 -
1313FA00063 Black-Oxide 18-8 Stainless Steel 1/4" 0.256" 0.51" 0.023-0.028" Tooth Lock Rockwell B88 ASME B18.21.1 -
1313FA00065 Black-Oxide 18-8 Stainless Steel 3/8" 0.384" 0.694" 0.032-0.040" Tooth Lock Rockwell B88 ASME B18.21.1 -
1313FA00064 Black-Oxide 18-8 Stainless Steel 5/16" 0.32" 0.61" 0.028-0.034" Tooth Lock Rockwell B88 ASME B18.21.1 -
1313FA00062 Black-Oxide 18-8 Stainless Steel No. 10 0.195" 0.41" 0.018-0.024" Tooth Lock Rockwell B88 ASME B18.21.1 -
1313FA00060 Black-Oxide 18-8 Stainless Steel No. 6 0.141" 0.32" 0.016-0.022" Tooth Lock Rockwell B88 ASME B18.21.1 -
1313FA00061 Black-Oxide 18-8 Stainless Steel No. 8 0.168" 0.381" 0.018-0.023" Tooth Lock Rockwell B88 ASME B18.21.1 -
1313FA00033 Black-Oxide Steel 1/2" 0.513" 0.9" 0.037-0.045" Tooth Lock Rockwell C40 ASME B18.21.1 -
1313FA00031 Black-Oxide Steel 1/4" 0.256" 0.51" 0.023-0.028" Tooth Lock Rockwell C40 ASME B18.21.1 -
1313FA00032 Black-Oxide Steel 3/8" 0.384" 0.694" 0.032-0.040" Tooth Lock Rockwell C40 ASME B18.21.1 -
1313FA00029 Black-Oxide Steel No. 10 0.195" 0.41" 0.018-0.024" Tooth Lock Rockwell C40 ASME B18.21.1 -
1313FA00030 Black-Oxide Steel No. 12 0.221" 0.475" 0.020-0.027" Tooth Lock Rockwell C40 ASME B18.21.1 -
1313FA00026 Black-Oxide Steel No. 4 0.115" 0.26" 0.012-0.018" Tooth Lock Rockwell C40 ASME B18.21.1 -
1313FA00027 Black-Oxide Steel No. 6 0.141" 0.32" 0.016-0.022" Tooth Lock Rockwell C40 ASME B18.21.1 -
1313FA00028 Black-Oxide Steel No. 8 0.168" 0.381" 0.018-0.023" Tooth Lock Rockwell C40 ASME B18.21.1 -
1313FA00042 Bronze 1/2" 0.513" 0.9" 0.037-0.045" Tooth Lock Rockwell B60 ASME B18.21.1 -
1313FA00038 Bronze 1/4" 0.256" 0.51" 0.023-0.028" Tooth Lock Rockwell B60 ASME B18.21.1 -
1313FA00046 Bronze 3/4" 0.768" 1.26" 0.047-0.055" Tooth Lock Rockwell B60 ASME B18.21.1 -
1313FA00040 Bronze 3/8" 0.384" 0.694" 0.032-0.040" Tooth Lock Rockwell B60 ASME B18.21.1 -
1313FA00039 Bronze 5/16" 0.32" 0.61" 0.028-0.034" Tooth Lock Rockwell B60 ASME B18.21.1 -
1313FA00043 Bronze 5/8" 0.641" 1.07" 0.042-0.050" Tooth Lock Rockwell B60 ASME B18.21.1 -
1313FA00041 Bronze 7/16" 0.448" 0.76" 0.032-0.040" Tooth Lock Rockwell B60 ASME B18.21.1 -
1313FA00037 Bronze No. 10 0.195" 0.41" 0.018-0.024" Tooth Lock Rockwell B60 ASME B18.21.1 -
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