Round Head Square Neck Carriage Bolt

1. Materials: Stainless, Aluminum, Carbon Steel,Brass, etc 2. Grades: 2, 5, 4.8, 8.8 3. Standards: DIN603 & IFI C-40

Specifications of Carriage Bolt:1.Standards & Sizes:

Standards	Sizes
DIN603	M6-M12
IFI C-40	1/4-3/8

2.Materials of Carriage Bolts we can produce:Stainless, Aluminum, Carbon Steel,Brass,Alloy Steel,Nylon,Silicon,Bronze,etc.3.Grades:2,5, 4.8, 8.84.Surface Treatment of Carriage Bolts we can provide:Yellow zinc plated, White zinc plated, Hot dip galvanized, Nickel plated, Polished, etc. 5.Carriage Bolts are used for: Pieces of timber are often secured together using one or more carriage bolts during construction of homes, outdoor decks, and pilings. These bolts are commonly used in chain link fences, patio and ready-to-assemble furniture, machinery assembly, and even in automobiles.Carriage Bolt Standard:DIN603          Unit:mm

Thread size	M6	M8	M10	M12
Pitch	1	1.25	1.5	1.75
b L≤125	18	22	26	30
b 125<L≤200	24	28	32	36
b L>200	.	41	45	49
dk	16.55	20.65	24.65	30.65
f	4.6	5.6	6.6	8.75
k	3.88	4.88	5.38	6.95
v	6.48	8.58	1.58	12.7
L	16-80	20-100	20-100	30-100

 Standard:IFI C-40                 Unit:mm

Thread size	1/4	5/16	3/8
Thread per inch	20	18	16
dk	0.594	0.719	0.844
f	0.156	0.187	0.219
k	0.145	0.176	0.208
v	0.26	0.324	0.388
L	1 1/2-4	1 3/4-4	2-4