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Black Square Head Bolts

Standard: DIN 480
Thread Type: Coarse Thread / Full Thread
Commodity: Black Square Head Bolts
Also Named: Square Head Machine Bolts
Material: Carbon Steel
Property Class: 5.6, 5.8, 8.8
Diameter: M8, M10, M12, M16, M20, M24
Finish: Plain, Black Oxide, Zinc Plated, Hot Dipped Galvanized, Oxidation, Dacromet, Phosphating, Cadmium Electroplate, Nickel Plated
Head Type: Hexagon Head
Drive Type: External Hex
MOQ: 1000kgs
Lead Time: 30 to 60 days

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Product Introduction

AYA Fasteners (Hebei) Co., Ltd. is one of the most experienced manufacturers and suppliers of black square head bolts in China. Please feel free to buy high quality black square head bolts made in China here from our factory. For price consultation, contact us.

Black Square Head Bolts aya

As a global supplier of customized fastening solutions, AYA's service process is also as close to customers as AYA's products. From describing needs to follow-up services, AYA will promptly and spare no effort to help customers solve any fastening problems that arise, to eliminate the concern of customers.

PRODUCT DESCRIPTION

Product Name	Black Square Head Bolts
Also Named	Square Head Machine Bolts
Material	Carbon Steel
Standard	DIN 480
Property Class	GR2、GR5、GR8
Diameter	M8, M10, M12, M16, M20, M24
Finish	Plain, Black Oxide, Zinc Plated, Hot Dipped Galvanized, Oxidation, Dacromet, Phosphating, Cadmium Electroplate, Nickel Plated
Head Type	Hexagon Head
Drive Type	External Hex
Thread Type	Coarse Thread / Full Thread

DIMENSIONS TABLE

Black Square Head Bolts aya

Thread Size		M8	M10	M12	M16	M16	M20	M20	M24	M20	M24
d		M8	M10	M12	SW16	SW17	SW21	SW22	M24	SW22	M24
P	Pitch	1.25	1.5	1.75	2	2	2.5	2.5	3	2.5	3
a	max	3.75	4.5	5.3	6	6	7.5	7.5	9	7.5	9
c	min	2.88	2.88	3.85	3.85	3.85	4.85	4.85	5.85	15	18
c	max	3.12	3.12	4.15	4.15	4.15	5.15	5.15	6.15	14.73	17.73
dc	max=nominal size	10	13	17	21	22	27	28	32	28	32
dc	min	9.42	12.3	16.3	20.16	21.16	26.16	27.16	31	27.16	31
dp	max=nominal size	5.5	7	8.5	12	12	15	15	18	20	22
dp	min	5.32	6.78	8.28	11.73	11.73	14.73	14.73	17.73	20.26	22.26
k	Nominal Size	11	13	16	20	20	25	25	28	19.74	21.74
	min	10.78	12.78	15.78	19.74	19.74	24.74	24.74	27.74	13.8	15.2
	max	11.22	13.22	16.22	20.26	20.26	25.26	25.26	28.26	0.8	0.8
r	min	0.4	0.4	0.6	0.6	0.6	0.8	0.8	0.8	22	24
s	max=nominal size	8	10	13	16	17	21	22	24	21.67	23.67
s	min	7.78	9.78	12.73	15.73	16.73	20.67	21.67	23.67	5	6
z	min=nominal size	2	2.5	3	4	4	5	5	6	5.3	6.3
z	max	2.25	2.75	3.25	4.3	4.3	5.3	5.3	6.3

PRODUCT DETAILS

Black Square Head Bolts

PRODUCT ADVANTAGES

Black Square Head Bolts

ADVANTAGES OF Black Square Head Bolts

1.With the four-sided head form, black square head screws are rather simple to tighten up.

2.The black oxide square blots are extra inexpensive compared to the galvanizing kind as a result of the reduced expense of surface techniques.

3. It can be used as a fast scale when gauging the setting of nuts.

4. It can be taken care of also in a blind areas quickly with fundamental devices like pliers or wrench.

5. It can be used conveniently and also swiftly in slim or limited working problems.

6. AYA has more than 200 skilled employees as well as 80 automated devices for large or immediate orders.

QUALITY INSPECTION

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PACKAGING & CONTAINER LOADING

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USAGE SCENARIOS

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WHY CHOOSE AYA?

AYA provides exclusive services to 1000+ members from all over the world every year, with a unique chain service solution system, you only need to click the mouse to get exclusive fastening solution and enjoy door-to-door services.