DIN 603 Stainless Steel Carriage Head Bolts

Overview:

DIN 603 Stainless Steel Carriage Bolts are made from stainless steel, these screws have good chemical resistance and may be mildly magnetic. They are also known as A2/A4 stainless steel. 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.

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Specifications

Dimension Table

Why AYA

SPECIFICATIONS

Commodity:	Stainless Steel Carriage Bolts
Material:	Stainless Steel
Head Type:	Round Head and A square neck
Length:	Measured from under the head
Thread Type:	Coarse Thread, Fine Thread
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.

Application

Stainless steel carriage bolts, also known as carriage head bolts or coach bolts, are fasteners with a domed or rounded head and a square or ribbed neck beneath the head. These bolts are designed to be used with a square hole in the wood or metal, preventing the bolt from turning while being tightened. The use of stainless steel in carriage head bolts provides corrosion resistance, making them suitable for various applications, particularly in environments where exposure to moisture and corrosive elements is a concern. Here are some common applications for stainless steel carriage head bolts:

Woodworking and Carpentry:
Carriage bolts are commonly used in woodworking projects for fastening wood components, such as joining beams, framing, and constructing wooden structures.

Construction Industry:
Applied in construction for connecting wooden elements, such as securing trusses and framing.

Outdoor Structures:
Used in the assembly of outdoor structures like decks, pergolas, and fences where corrosion resistance is important due to exposure to the elements.

Playground Equipment:
Carriage head bolts are utilized in the assembly of playground equipment, ensuring secure connections in structures made of wood or other materials.

Automotive Repairs:
Applied in automotive repairs for securing wooden or metal components where a smooth, rounded head is desirable.

Furniture Assembly:
Used in the assembly of furniture, providing a secure and visually appealing fastening solution.

Exterior Home Renovations:
Used in renovations and additions to secure wooden elements, particularly in outdoor or exposed areas.

Signage and Display Construction:
Applied in the assembly of signs, displays, and other structures where a neat and secure fastening solution is needed.

DIY Projects:
Suitable for various do-it-yourself (DIY) projects where a visually pleasing fastener with corrosion resistance is required.

Previous: Stainless Steel Socket Head Cap Bolts

Next: A2-70 Stainless Steel Stud Bolts

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

ASME B18.5

Thread Size		10#	1/4	5/16	3/8	7/16	1/2	5/8	3/4	7/8	1
d		10#	1/4	5/16	3/8	7/16	1/2	5/8	3/4	7/8	1
d		0.19	0.25	0.3125	0.375	0.4375	0.5	0.625	0.75	0.875	1
PP	UNC	24	20	18	16	14	13	11	10	9	8
ds	max	0.199	0.26	0.324	0.388	0.452	0.515	0.642	0.768	0.895	1.022
ds	min	0.159	0.213	0.272	0.329	0.385	0.444	0.559	0.678	0.795	0.91
dk	max	0.469	0.594	0.719	0.844	0.969	1.094	1.344	1.594	1.844	2.094
dk	min	0.436	0.563	0.688	0.782	0.907	1.032	1.219	1.469	1.719	1.969
k	max	0.114	0.145	0.176	0.208	0.239	0.27	0.344	0.406	0.459	0.531
k	min	0.094	0.125	0.156	0.188	0.219	0.25	0.313	0.375	0.438	0.5
s	max	0.199	0.26	0.324	0.388	0.452	0.515	0.642	0.768	0.895	1.022
s	min	0.185	0.245	0.307	0.368	0.431	0.492	0.616	0.741	0.865	0.99
k1	max	0.125	0.156	0.187	0.219	0.25	0.281	0.344	0.406	0.469	0.531
k1	min	0.094	0.125	0.156	0.188	0.219	0.25	0.313	0.375	0.438	0.5
r		0.031	0.031	0.031	0.047	0.047	0.047	0.078	0.078	0.094	0.094
R		0.031	0.031	0.031	0.031	0.031	0.031	0.062	0.062	0.062	0.062