{"id":19748,"date":"2025-05-05T13:40:59","date_gmt":"2025-05-05T13:40:59","guid":{"rendered":"https:\/\/stainlessbolts.com\/gemstar\/?page_id=19748"},"modified":"2026-05-27T06:03:19","modified_gmt":"2026-05-27T06:03:19","slug":"internal-tooth-lock-washer","status":"publish","type":"page","link":"https:\/\/stainlessbolts.com\/gemstar\/internal-tooth-lock-washer\/","title":{"rendered":"Internal Tooth Lock Washer"},"content":{"rendered":"\t\t
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Stainless Steel Internal Tooth Lock Washers - Grade 202, 304, 316, A2, A2-70 <\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Internal tooth lock washers have teeth on the inner edge which secure the bolt or screw by gripping its surface, thus preventing any loosening caused by vibration or shock. They prove to be especially handy in cases where the bolt head is smaller than the washer’s outer diameter, or when it’s necessary to conceal the teeth.<\/p><\/div>\t\t\n\t<\/div>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t <\/div>\r\n <\/div>\r\n \t\t\t<\/div>\n\t\t<\/section>\n\t\t <\/div>\r\n <\/div>\r\n \t\t\t<\/div>\n\t\t<\/section>\n\t\t

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Technical Specifications \u2013 Internal Tooth Lock Washers<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t
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Below is a standard technical specification table for Internal Tooth Lock Washers (as per DIN 6798-J or ANSI B18.21.1):<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t

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Washer Size (Nominal Bolt Size) <\/td>\n
Inner Diameter (d) <\/div><\/td>\n
Outer Diameter (D) <\/div><\/td>\n
Thickness<\/div><\/td>\n
Number of Teeth <\/div><\/td>\n
Standard <\/div><\/td>\n <\/tr>\n
M2<\/td>\n
2.2 mm<\/div><\/td>\n
4.8 mm<\/div><\/td>\n
0.3 mm<\/div><\/td>\n
8–10<\/div><\/td>\n
DIN 6798-J<\/div><\/td>\n <\/tr>\n
M3<\/td>\n
3.2 mm<\/div><\/td>\n
6.2 mm<\/div><\/td>\n
0.4 mm<\/div><\/td>\n
10–12<\/div><\/td>\n
DIN 6798-J<\/div><\/td>\n <\/tr>\n
M4 <\/td>\n
4.3 mm<\/div><\/td>\n
7.6 mm<\/div><\/td>\n
0.5 mm<\/div><\/td>\n
10–12<\/div><\/td>\n
DIN 6798-J<\/div><\/td>\n <\/tr>\n
M5 <\/td>\n
5.3 mm<\/div><\/td>\n
9.2 mm<\/div><\/td>\n
0.6 mm<\/div><\/td>\n
12–14<\/div><\/td>\n
DIN 6798-J<\/div><\/td>\n <\/tr>\n
M6<\/td>\n
6.4 mm<\/div><\/td>\n
11.0 mm<\/div><\/td>\n
0.8 mm<\/div><\/td>\n
12–14<\/div><\/td>\n
DIN 6798-J<\/div><\/td>\n <\/tr>\n
M8<\/td>\n
8.4 mm<\/div><\/td>\n
14.5 mm<\/div><\/td>\n
1.0 mm<\/div><\/td>\n
14–16<\/div><\/td>\n
DIN 6798-J<\/div><\/td>\n <\/tr>\n
M10<\/td>\n
10.5 mm<\/div><\/td>\n
18.0 mm<\/div><\/td>\n
1.2 mm<\/div><\/td>\n
16–18<\/div><\/td>\n
DIN 6798-J<\/div><\/td>\n <\/tr>\n
M12<\/td>\n
13.0 mm<\/div><\/td>\n
21.0 mm<\/div><\/td>\n
1.4 mm<\/div><\/td>\n
16–18<\/div><\/td>\n
DIN 6798-J<\/div><\/td>\n <\/tr>\n
M16<\/td>\n
17.0 mm<\/div><\/td>\n
27.0 mm<\/div><\/td>\n
1.6 mm<\/div><\/td>\n
18–20<\/div><\/td>\n
DIN 6798-J<\/div><\/td>\n <\/tr>\n
M20<\/td>\n
21.0 mm<\/div><\/td>\n
33.0 mm<\/div><\/td>\n
2.0 mm<\/div><\/td>\n
20–22<\/div><\/td>\n
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