Stainless Steel Allen Head Bolts

Overview:

Stainless steel Allen head bolts are chosen for their corrosion resistance properties, making them suitable for outdoor, marine, and other environments where exposure to moisture and corrosive elements is likely. Stainless steel Allen head bolts often have a polished or passivated surface finish to enhance corrosion resistance and improve aesthetics.
AYAINOX has a wide range of Allen head bolt sizes and lengths to accommodate different applications.

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Specifications

Dimension Table

Why AYA

Product Description

Product Name	Stainless Steel Allen Head Bolts
Material	Made from 316 stainless steel, these screws have excellent resistance to chemicals and salt water. They may be mildly magnetic. They are also known as A4 stainless steel. Metric screws are also known as A4 stainless steel screws.
Head Type	Socket Head.
Length	Is measured from under the head.
Thread Type	Coarse Thread, Fine Thread. Coarse threads are the industry standard; choose these screws if you don't know the pitch or threads per inch. Fine and extra-fine threads are closely spaced to prevent loosening from vibration; the finer the thread, the better the resistance.
Standard	Screws that meet ASME B1.1, ASME B18.3, ISO 21269, and ISO 4762 (formerly DIN 912) comply with standards for dimensions. Screws that meet ASTM B456 and ASTM F837 comply with standards for materials.

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Next: Stainless Steel Socket Head Cap Bolts

Stainless Steel Allen Head Bolts-dimension table

ISO 21269

ASME B18.3

Screw Thread			M1.4	M1.6	M2	M2.5	M3	M4	M5	M6	M8	M10
d			M1.4	M1.6	M2	M2.5	M3	M4	M5	M6	M8	M10
P	Pitch	Coarse thread	0.3	0.35	0.4	0.45	0.5	0.7	0.8	1	1.25	1.5
		Fine thread pitch-1	-	-	-	-	-	-	-	-	1	1.25
		Fine thread pitch-2	-	-	-	-	-	-	-	-	-	1
dk	plain head	max	2.6	3	3.8	4.5	5.5	7	8.5	10	13	16
	knurled heads	max	2.74	3.14	3.98	4.68	5.68	7.22	8.72	10.22	13.27	16.27
	min		2.46	2.86	3.62	4.32	5.32	6.78	8.28	9.78	12.73	15.73
da	max		1.8	2	2.6	3.1	3.6	4.7	5.7	6.8	9.2	11.2
ds	max		1.4	1.6	2	2.5	3	4	5	6	8	10
ds	min		1.26	1.46	1.86	2.36	2.86	3.82	4.82	5.82	7.78	9.78
e	min		1.5	1.73	1.73	2.3	2.87	3.44	4.58	5.72	6.86	9.15
k	max		1.4	1.6	2	2.5	3	4	5	6	8	10
k	min		1.26	1.46	1.86	2.36	2.86	3.82	4.82	5.7	7.64	9.64
s	Nominal Size		1.3	1.5	1.5	2	2.5	3	4	5	6	8
	min		1.32	1.52	1.52	2.02	2.52	3.02	4.02	5.02	6.02	8.025
	max		1.36	1.56	1.56	2.06	2.58	3.08	4.095	5.14	6.14	8.175
t	min		0.6	0.7	1	1.1	1.3	2	2.5	3	4	5
w	min		0.5	0.55	0.55	0.85	1.15	1.4	1.9	2.3	3	4

Screw Thread			M12	(M14)	M16	(M18)	M20	(M22)	M24	(M27)	M30	(M33)
d			M12	(M14)	M16	(M18)	M20	(M22)	M24	(M27)	M30	(M33)
P	Pitch	Coarse thread	1.75	2	2	2.5	2.5	2.5	3	3	3.5	3.5
		Fine thread pitch-1	1.25	1.5	1.5	1.5	1.5	1.5	2	2	2	2
		Fine thread pitch-2	1.5	-	-	2	2	2	-	-	-	-
dk	plain head	max	18	21	24	27	30	33	36	40	45	50
	knurled heads	max	18.27	21.33	24.33	27.33	30.33	33.39	36.39	40.39	45.39	50.39
	min		17.73	20.67	23.67	26.67	29.67	32.61	35.61	39.61	44.61	49.61
da	max		13.7	15.7	17.7	20.2	22.4	24.4	26.4	30.4	33.4	36.4
ds	max		12	14	16	18	20	22	24	27	30	33
ds	min		11.73	13.73	15.73	17.73	19.67	21.67	23.67	26.67	29.67	32.61
e	min		11.43	13.72	16	16	19.44	19.44	21.73	21.73	25.15	27.43
k	max		12	14	16	18	20	22	24	27	30	33
k	min		11.57	13.57	15.57	17.57	19.48	21.48	23.48	26.48	29.48	32.38
s	Nominal Size		10	12	14	14	17	17	19	19	22	24
	min		10.025	12.032	14.032	14.032	17.05	17.05	19.065	19.065	22.065	24.065
	max		10.175	12.212	14.212	14.212	17.23	17.23	19.275	19.275	22.275	24.275
t	min		6	7	8	9	10	11	12	13.5	15.5	18
w	min		4.8	5.8	6.8	7.8	8.6	9.4	10.4	11.9	13.1	13.5

Screw Thread			M36	M42	M48	M56	M64	M72	M80	M90	M100	-
d			M36	M42	M48	M56	M64	M72	M80	M90	M100	-
P	Pitch	Coarse thread	4	4.5	5	5.5	6	6	6	6	6	-
		Fine thread pitch-1	3	3	3	4	4	4	4	4	4	-
		Fine thread pitch-2	-	-	-	-	-	-	-	-	-	-
dk	plain head	max	54	63	72	84	96	108	120	135	150	-
	knurled heads	max	54.46	63.46	72.46	84.54	96.54	108.54	120.54	135.63	150.63	-
	min		53.54	62.54	71.54	83.46	95.46	107.46	119.46	134.37	149.37	-
da	max		39.4	45.5	52.6	63	71	79	87	97	107	-
ds	max		36	42	48	56	64	72	80	90	100	-
ds	min		35.61	41.61	47.61	55.54	63.54	71.54	79.54	89.46	99.46	-
e	min		30.85	36.57	41.13	46.83	52.53	62.81	74.21	85.61	97.04	-
k	max		36	42	48	56	64	72	80	90	100	-
k	min		35.38	41.38	47.38	55.26	63.26	71.26	79.26	89.13	99.13	-
s	Nominal Size		27	32	36	41	46	55	65	75	85	-
	min		27.065	32.08	36.08	41.08	46.08	55.1	65.1	75.1	85.12	-
	max		27.275	32.33	36.33	41.33	46.33	55.4	65.4	75.4	85.47	-
t	min		19	24	28	34	38	43	48	54	60	-
w	min		15.3	16.3	17.5	19	22	25	27	32	34	-