Chamfering of square head bolt

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Product details

3/8" Square Head Machine Bolt Hot Dip Galvanized IEEE C135.1 & CSA C83 Rolled Thread

The Yokelink 3/8" Square Head Machine Bolt series is designed for lighter duty utility applications, specifically for securing crossarm braces, secondary racks, and other pole line attachments. Despite their smaller size, these bolts are manufactured with the same rigorous quality control as our heavy-duty hardware, meeting IEEE Std C135.1 specifications.

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Square Head Bolt Key Features & Benefits:

Rolled Threads: Produced by thread rolling process to provide greater tensile strength and fatigue resistance compared to cut threads.
Chamfered Point: Features a chamfered or sheared end for easy starting of the nut, adhering to standard specifications for 3/8" diameter bolts.
Corrosion Resistance: Hot Dip Galvanized to ASTM A153 Class C, ensuring long-term protection in coastal and industrial environments.
Ready to Install: Supplied with a square nut assembled.

Engineered for Cold Climates (CSA C83 Compliant):

Winter Ready: Ideal for the Canadian market. Our steel formulation maintains integrity in low temperatures (-20°C).

Oversize Tapping: Nuts are tapped oversize to ensure they spin freely even when installing with gloved hands in freezing conditions.

Square-Head-Machine-Bolt-Hot-Dip-Galvanized CSA C83

Technical Specifications (3/8" Diameter):

Min. Tensile Strength: 4,250 lbs (18.9 kN)
Thread Standard: UNC 2A

Cross Reference (Industry Equivalents):

Yokelink P/N	Size	Comparable to Hubbell/Chance	Comparable to MacLean (MPS)
A0138-02	3/8" x 2"	8202	J8202
A0138-04	3/8" x 4"	8204	J8204
A0138-06	3/8" x 6"	8206	J8206

(Note: Manufacturer part numbers are for reference only. Yokelink products are interchangeable based on IEEE standards.)

Square Head Machine Bolt Factory Production Pictures

At Yokelink, we don't just supply hardware; we manufacture it. Our state-of-the-art facility controls every step of the production process—from raw material selection to final hot-dip galvanizing. This vertical integration allows us to guarantee consistent quality, competitive pricing, and on-time delivery for projects of any scale.

Other lengths and 1 inch diameter machine bolts are available. 304 & 316 Stainless Steel Square machining bolts are available per the request. When you need Square Machine Bolts, refer to above our catalog. We offer them in a full selection of sizes, provide the length, diameter or part number to get a quote on these bolts, leave your message, or send us an email. You can also call us to get answers to your questions and place your order.

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Ningbo Yokelink Machinery Co.,Limited

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11 year

Main Product: Poleline Hardware, Insulator fitting , Thimble eye, Anchor rod, Sturctral Bolt, Fastener

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