ASTM F436 HARDENED WASHER

ASTM F436 HARDENED WASHER

Technical specifications

Materials;45#/50#/40Cr
Finish;Zinc Plated/Black/Hot dip galvanized
Size;1/4”-4“

FEATURES

Washers provide a smooth bearing surface and are used under the head of a bolt and/or a nut. The chemical, mechanical, and dimensional requirements for hardened washers are covered under the ASTM specification F436. These washers are through hardened or carburized to add strength, but are physically smaller than a standard F844 flat washer. They are the recommended washer for any fastener other than a low carbon steel bolt.

Description:

Size	d		dc		h			per 1000 units
	Min	Max	min	max	pitch	min	max	kg
1/4	7.52	7.92	15.1	15.5	1.7	1.3	2.02	2.06
5/16	9.12	9.52	16.7	17.1	1.7	1.3	2.02	2.36
3/8	10.69	11.09	19.87	20.27	1.7	1.3	2.02	3.26
7/16	12.29	12.69	23.42	23.82	1.7	1.3	2.02	4.13
1/2	13.87	14.27	27	27.4	3.5	2.47	4.48	11.70
5/8	17.86	18.26	32.57	32.97	3.8	3.1	4.48	18.86
3/4	21.03	21.43	37.31	37.71	3.8	3.1	4.48	22.56
7/8	24.21	24.61	44.45	44.85	4	3.46	4.48	34.50
1	28.96	29.36	50.02	50.42	4	3.46	4.48	45.32
1-1/8	32.13	32.53	57.15	57.55	4	3.46	4.48	57.25
1-1/4	35.31	35.71	63.5	63.9	4	3.46	4.48	68.88
1-3/8	38.48	38.88	69.07	69.47	4	3.46	4.48	84.53
1-1/2	41.66	42.06	76.2	76.6	4	3.46	4.48	100.43
1-3/4	48.01	48.41	85.73	86.13	5.8	4.53	7.1	181.61
2	55.14	55.54	93.69	94.09	5.8	4.53	7.1	219.93
2-1/4	61.49	61.89	100.04	100.44	7.4	6.1	8.52	305.06
2-1/2	67.84	68.24	112.74	113.14	7.4	6.1	8.52	393.20
2-3/4	74.19	74.59	125.44	125.84	7.4	6.1	8.52	492.7
3	80.54	80.94	138.14	138.54	7.4	6.1	8.52	602.92
3-1/4	86.89	87.29	150.84	151.24	7.4	6.1	8.52	724.33
3-1/2	94.8	95.2	161.98	162.38	7.4	6.1	8.52	857.46
3-3/4	101.15	101.55	174.68	175.08	7.4	6.1	8.52	1000.28
4	107.5	107.9	187.38	187.78	7.4	6.1	8.52	1154.80