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ANSI B 18 21 1 stainless steel spring washer high-collar helical/ heavy helical

Product brief description:

Durable and sturdy

No rust when exposed to water

Standard size

Environmentally friendly and aesthetically pleasing

Complete variety

Wide adaptability

Quality assurance

Material diversity (stainless steel, spring steel, copper, aluminum, alloy steel, etc)

Product specifics:

ANSI B 18 21 1 stainless steel spring washer high-collar helical/ heavy helical Spring Washers series is widely used in mechanical railway industrial products, auto parts, power products, solar products, ships, building decoration engineering, bridges, furniture, home appliances, and other fields.

Product parameter table:

High-collar helical spring lock washers:

Screw Thread d		#4	#5	#6	#8	#10	1/4	5/16	3/8	7/16	1/2	5/8	3/4
d	Nominal Size	0.112	0.125	0.138	0.164	0.19	0.25	0.3125	0.375	0.4375	0.5	0.625	0.75
	max	0.12	0.133	0.148	0.174	0.2	0.26	0.322	0.385	0.45	0.512	0.641	0.766
	min	0.114	0.127	0.141	0.167	0.193	0.252	0.314	0.377	0.44	0.502	0.628	0.753
dc	max	0.173	0.202	0.216	0.267	0.294	0.363	0.457	0.55	0.644	0.733	0.917	1.105
h	min	0.022	0.03	0.03	0.047	0.047	0.078	0.093	0.125	0.14	0.172	0.203	0.218
n	min	0.022	0.03	0.03	0.042	0.042	0.047	0.062	0.076	0.09	0.103	0.125	0.154
n1	min	0.015	0.021	0.021	0.029	0.029	0.033	0.043	0.053	0.063	0.072	0.087	0.108

Screw Thread d		7/8	1"	1-1/8	1-1/4	1-3/8	1-1/2	1-3/4	2"	2-1/4	2-1/2	2-3/4	3"
d	Nominal Size	0.875	1	1.125	1.25	1.375	1.5	1.75	2	2.25	2.5	2.75	3
	max	0.894	1.024	1.153	1.28	1.408	1.534	1.789	2.039	2.293	2.543	2.793	3.043
	min	0.878	1.003	1.129	1.254	1.379	1.504	1.758	2.008	2.262	2.512	2.762	3.012
dc	max	1.291	1.478	1.663	1.79	2.031	2.159	2.596	2.846	3.345	3.595	4.095	4.345
h	min	0.234	0.25	0.313	0.313	0.375	0.375	0.469	0.469	0.508	0.508	0.633	0.633
n	min	0.182	0.208	0.236	0.236	0.292	0.292	0.383	0.383	0.508	0.508	0.633	0.633
n1	min	0.127	0.146	0.165	0.165	0.204	0.204	0.268	0.268	0.356	0.356	0.443	0.443