Countersunk Square Neck Bolts

DONGSHAO invites you to visit our factory to purchase the newest, best-selling, affordable, and high-quality Countersunk Square Neck Bolts. We are looking forward to working with you.

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Product Description

Countersunk Square Neck Bolts, manufactured by Hebei Dongshao Fastener Manufacturing Co., Ltd., are a fastener product that combines aesthetics, strength, and durability. Their design ensures a flush surface after installation, effectively enhancing the overall appearance of the structure.

Key Features:

1. Countersunk + Square Neck Structure Design

Countersunk design: After installation, the bolt head is flush with the mounting surface, resulting in a clean appearance and reducing protrusions.

Square neck structure: Effectively prevents the bolt from rotating with the nut during installation, improving assembly efficiency and stability.

2. Excellent Surface Treatment, Strong Corrosion Resistance

Countersunk Square Neck Bolts feature a mature surface treatment process, effectively preventing corrosion and oxidation.

Suitable for long-term use in various environmental conditions.

3. Strong Fastening Force, Reliable Connection

High thread precision ensures even force distribution.

Provides a secure connection after tightening, preventing loosening.

Meets the basic requirements for strength and safety in mechanical engineering, building structures, and other applications.

4. Standardized Specifications, Convenient Matching

Uses common standard specifications.

Can be used with standard nuts and washers.

Strong market compatibility, making procurement and replacement more convenient.

Product Parameter

(mm)	M6	M8	M10	M12	M16	M20
P	1	1.25	1.5	1.75	2	2.5
ds	5.35	7.19	9.03	10.86	14.70	18.38
dk max	11.05	14.55	17.55	21.65	28.65	36.8
dk min	9.95	13.45	16.45	20.35	27.35	35.2
k max	6.1	7.25	8.45	11.05	13.05	15.05
k min	5.3	6.35	7.55	9.95	11.95	13.95
s max	6.36	8.36	10.36	12.43	16.43	20.52
s min	5.84	7.8	9.8	11.76	15.76	19.72