ASME/ANSI B 18.21.1External Tooth-Lock Washers

Category:Lock washer
Number of views:order
Release date:2025-05-12 16:01:17

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性能特点
技术参数
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Product name: ASME/ANSI B 18.21.1External Tooth-Lock Washers

Implementation standard: ASME/ANSI B 18.21.1 (Table 8)

Product Overview: ASME/ANSI B 18.21.1External Tooth-Lock Washersare also called: external multi-tooth locking washers, external tooth anti-slip washers, external chrysanthemum washers, thrust washers,Tooth Serrated Anti-Slip Washer. There are internal tooth locking washers and external tooth locking washers in the American standard. Internal tooth loosening washers are mainly used with screws with smaller heads, and external teeth can be used with hexagonal heads or other head types of bolts. The main function of external tooth anti-slip washers is to lock, prevent slipping and prevent loosening. The elastic teeth of the washers after heat treatment increase the friction and preload of the nuts or bolts to achieve the effect of loosening. Internal teeth have corresponding standards in many countries, such as: national standard GB 861.2 external tooth locking washers, German standard DIN 6797A type external chrysanthemum anti-loosening washers, IFI 532T3 American standard medium-meter heavy-duty external tooth anti-slip pads, Japanese standard JIS B 1251 external multi-tooth loosening washers, etc.

Product materials: 304, 316, 316L, 65Mn, 304-CSP, spring steel, etc.

Product surface: blackening, blue-white zinc, colored zinc, black zinc, zinc-nickel alloy, hot-dip galvanizing, hot-dip galvanizing, geomet, Dacromet, electrophoresis, Teflon, baking varnish, road rust treasure, rust titanium and other customer-specified surface treatments

Product diameter: φ2#, φ3#, φ4#, φ5#, φ6#, φ8#, φ10#, φ12#, φ1/4, φ5/16, φ3/8, φ7/16, φ1/2, φ9/16, φ5/8, φ3/4, φ7/8, φ1", φ1-1/8, φ1-1/4, etc.

Product size

Size unit:mm

规格

10#

12#

1/4

5/16

3/8

d	最大值
	最小值
d_c	最大值
	最小值
t	最大值
	最小值

0.095	0.109	0.123	0.136	0.15	0.176	0.204	0.231	0.267	0.332	0.398
0.089	0.102	0.115	0.129	0.141	0.168	0.195	0.221	0.256	0.32	0.384
0.2	0.232	0.27	0.28	0.295	0.34	0.381	0.41	0.478	0.61	0.692
0.175	0.215	0.245	0.255	0.275	0.325	0.365	0.394	0.46	0.594	0.67
0.016	0.016	0.018	0.02	0.022	0.023	0.024	0.027	0.028	0.034	0.04
0.01	0.01	0.012	0.014	0.016	0.018	0.018	0.02	0.023	0.028	0.032

规格

7/16

1/2

9/16

5/8

11/16

3/4

13/16

7/8

1-1/8

1-1/4

d	最大值
	最小值
d_c	最大值
	最小值
t	最大值
	最小值

0.464	0.53	0.596	0.663	0.728	0.795	0.861	0.927	1.06	1.192	1.325
0.448	0.512	0.576	0.64	0.704	0.769	0.832	0.894	1.019	1.144	1.275
0.789	0.9	0.985	1.071	1.166	1.245	1.315	1.41	1.637	1.83	1.975
0.74	0.867	0.957	1.045	1.13	1.22	1.29	1.364	1.59	1.799	1.921
0.04	0.045	0.045	0.05	0.05	0.055	0.055	0.06	0.067	0.067	0.067
0.032	0.037	0.037	0.042	0.042	0.047	0.047	0.052	0.059	0.059	0.059