Stainless Steel Carriage Bolts

Overview:

Commodity: Stainless Steel Carriage Bolts
Material: Made from stainless steel, these screws have good chemical resistance and may be mildly magnetic. They are also known as A2/A4 stainless steel.
Head Type: Round Head and A square neck.
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: Dimensions meet ASME B18.5 or DIN 603 specifications. Some also meet ISO 8678. DIN 603 is functionally equivalent to ISO 8678 with slight differences in head diameter, head height, and length tolerances.

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Specifications

Dimension Table

Why AYA

Product Description

Product Name	Stainless Steel Carriage Bolts
Material	Made from stainless steel, these screws have good chemical resistance and may be mildly magnetic. They are also known as A2/A4 stainless steel
Head Type	Made from stainless steel, these screws have good chemical resistance and may be mildly magnetic. They are also known as A2/A4 stainless steel
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	Dimensions meet ASME B18.5 or DIN 603 specifications. Some also meet ISO 8678. DIN 603 is functionally equivalent to ISO 8678 with slight differences in head diameter, head height, and length tolerances.

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dimension table

DIN 603

Screw Thread		M5	M6	M8	M10	M12	M16	M20
d		M5	M6	M8	M10	M12	M16	M20
P	Pitch	0.8	1	1.25	1.5	1.75	2	2.5
b	L≤125	16	18	22	26	30	38	46
	125＜L≤200	22	24	28	32	36	44	52
	L＞200	/	/	41	45	49	57	65
dk	max	13.55	16.55	20.65	24.65	30.65	38.8	46.8
dk	min	12.45	15.45	19.35	23.35	29.35	37.2	45.2
ds	max	5	6	8	10	12	16	20
ds	min	4.52	5.52	7.42	9.42	11.3	15.3	19.16
k1	max	4.1	4.6	5.6	6.6	8.75	12.9	15.9
k1	min	2.9	3.4	4.4	5.4	7.25	11.1	14.1
k	max	3.3	3.88	4.88	5.38	6.95	8.95	11.05
k	min	2.7	3.12	4.12	4.62	6.05	8.05	9.95
r1	≈	10.7	12.6	16	19.2	24.1	29.3	33.9
r2	max	0.5	0.5	0.5	0.5	1	1	1
r3	max	0.75	0.9	1.2	1.5	1.8	2.4	3
s	max	5.48	6.48	8.58	10.58	12.7	16.7	20.84
s	min	4.52	5.52	7.42	9.42	11.3	15.3	19.16