Hexagon Head Bolts with Hole

Being a proficient manufacturer, DONGSHAO aims to offer you top-notch Hexagon Head Bolts with Hole. We promise to provide you with the best after-sale support and prompt delivery.

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Product Description

Hebei Dongshao Fastener Manufacturing Co., Ltd. has established itself as a prominent Chinese supplier and manufacturer of hexagon head bolts with hole.

Functional Design: The threaded front section ensures secure fastening connections, while the unthreaded rear portion provides positioning capabilities, making these bolts versatile for multiple applications.

Working Principle: These bolts operate through shear resistance to prevent displacement between connected components, with relatively low pre-tension force requirements compared to traditional fastening methods.

Matching Configuration: The bolt shank diameter is precisely manufactured to match the hole diameter, creating an interference fit that ensures stability and precision in assembly.

Application Advantages: Engineered for demanding environments, hexagon head bolts with hole excel in high-load applications, severe impact conditions, and beam-to-column connections where structural integrity is paramount. The manufacturing process requires higher precision, resulting in more challenging assembly procedures, but delivers superior performance where it matters most.

Primary Industries: Automotive manufacturing, structural construction, and general industrial production.

Product Parameter

(mm)	M6	M8	M10	M12	M14	M16	M18	M20	M22	M24	M27	M30	M36	M42	M48
P	1	1.25	1.5	1.75	2	2	2.5	2.5	2.5	3	3	3.5	4	4.5	5
b max	11.5	14.5	17	19	23	26	28	29	32	35	38	46	50	59	63
b min	9.5	12.5	15	17	21	24	26	27	30	33	36	44	48	57	61
ds max	7	9	11	13	15	17	19	21	23	25	28	32	38	44	50
ds min	6.964	8.964	10.957	12.957	14.957	16.957	18.948	20.948	22.948	24.948	27.948	31.938	37.938	43.938	49.938
s max	10	13	16	18	21	24	27	30	34	36	41	46	55	65	75
s min	9.78	12.73	15.73	17.73	20.67	23.67	26.67	29.67	33.38	35.38	40	45	53.8	63.8	73.1
k min	3.85	4.85	5.85	6.82	7.82	8.82	9.82	10.78	11.78	12.78	14.65	16.65	19.58	22.58	25.58
k max	4.15	5.15	6.15	7.18	8.18	9.18	10.18	11.22	12.22	13.22	15.35	17.35	20.42	23.42	26.42
r min	0.25	0.4	0.4	0.6	0.6	0.6	0.6	0.8	0.8	0.8	1	1	1	1.2	1.6
dp	4	5.5	7	8.5	10	12	13	15	17	18	21	23	28	33	38
z	1.5	1.5	2	2	3	3	3	4	4	4	5	5	6	7	8
e min	11.05	14.38	17.77	20.03	23.35	26.75	30.14	33.53	37.72	39.98	45.2	50.85	60.79	72.02	82.6

Manufacturing Capabilities

Our facility features advanced cold heading equipment, hot stamping machinery, and recently introduced high-speed nut forming machines from Taiwan. Our technical expertise supports production across diverse product categories, including high-speed rail series bolts, photovoltaic solar mounting systems and accessories, steel structure components, infrastructure fasteners, expansion anchoring products, hot-dip galvanized standard parts, and custom-engineered fasteners for export markets.

We offer custom fabrication services, manufacturing odd-sized and special components according to customer drawings and specifications. Our products serve industries including construction, machinery, decoration, automotive, shipping, rail transit, metallurgy, mining, and photovoltaic solar energy.

Strategic Partners:

Yizhong Group Tianjin Heavy Industry Co., Ltd.

China Railway 14th Bureau

Shandong Longxiang

Fujian Hongguan

Academy of Railway Sciences

Through superior product quality and comprehensive after-sales service, we have established lasting partnerships with these industry leaders. Our company is now entering a dynamic growth phase, expanding our capabilities to better serve domestic and international customers.

Product Applications

Railway systems · Highway construction · Power generation and transmission · Bridge engineering · Wind power installations · Nuclear power facilities · Steel structures · Infrastructure projects · Mining operations · Pipeline systems

Production Equipment

Cold heading machines · Pneumatic punching presses · Hydraulic presses · Thread rolling machines · CNC lathes · Conventional lathes · Milling machines · Grinding machines · Drilling equipment · Heat treatment systems