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Black Oxide Grade 8.8 Carbon Steel Square Head Bolt & Nut Kit, 1.77 in, Pkg Qty 24

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Unbranded · SKU: AE9044014

Black Oxide Grade 8.8 Carbon Steel Square Head Bolt & Nut Kit, 1.77 in, Pkg Qty 24

This industrial-grade square head bolt and nut kit is manufactured from Grade 8.8 carbon steel for high tensile strength and durability. The black oxide finish provides corrosion resistance. Each bolt features a 1.77-inch square head for secure wrenching, with a total length of 7.09 inches (180mm) and a 1.18-inch (30mm) diameter thread. The kit includes one matching nut per bolt for complete assembly.

2-3 weeks
$179.99($7.50/each)

Volume Pricing - Buy More, Save More

QuantityDiscountUnit Price
1 - 9-$179.99 / each
10 - 49-5%$170.99 / each
50+-10%$161.99 / each
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Technical Specifications

System of MeasurementMetric
Material Grade/Class8.8
MaterialCarbon Steel
Thread SizeM30
FinishBlack Oxide
Width Across Flats1.77 in

Product Description

Overview

This industrial-grade square head bolt and nut kit is engineered for demanding fastening applications where high tensile strength and reliable torque application are critical. Manufactured from Grade 8.8 carbon steel, each component is built to withstand significant stress and load. The black oxide finish offers a foundational layer of corrosion resistance for general industrial environments. The distinctive square head design provides a positive grip for wrenches, making it ideal for situations where a flush or low-clearance fit is required, or where traditional hex heads are not suitable.

Key Features

Constructed from high-strength Grade 8.8 carbon steel

Protective black oxide finish for corrosion resistance 1.77-inch square head design for secure wrenching and low-clearance applications

Includes one matching nut per bolt for immediate assembly Pre-packaged for convenience in a 24-piece kit

Specifications

Material: Carbon Steel Material Grade: 8.8 Thread Size: M30 Bolt Length: 7.09 inches Head Dimensions: 1.77 inches by 1.77 inches Head Height: 0.79 inches Finish: Black Oxide Package Quantity: 24 kits (each kit includes one bolt and one nut)

Applications

Heavy-duty machinery assembly and repair

Structural steel framing and construction

Jig and fixture manufacturing

Agricultural equipment maintenance

Industrial conveyor system fabrication General fabrication in welding and machine shops

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Frequently Asked Questions

What are the key specifications of Black Oxide Grade 8.8 Carbon Steel Square Head Bolt & Nut Kit, 1.77 in, Pkg Qty 24?
Key specifications for Black Oxide Grade 8.8 Carbon Steel Square Head Bolt & Nut Kit, 1.77 in, Pkg Qty 24: System of Measurement: Metric, Material Grade/Class: 8.8, Material: Carbon Steel. See the full specification table on this page for complete details. If you need help confirming whether this product fits your application, use our AI Sourcing Assistant or submit an RFQ with your requirements.
What is the minimum order quantity and bulk pricing for Black Oxide Grade 8.8 Carbon Steel Square Head Bolt & Nut Kit, 1.77 in, Pkg Qty 24?
The minimum order quantity is 1 unit(s). Unit price starts at $179.99. Volume discounts are available — see the tiered pricing table on this page for exact breakpoints. For quantities beyond what is listed, or for custom pricing on recurring orders, submit an RFQ and our team will respond within 24 hours.
What is the lead time and availability for Black Oxide Grade 8.8 Carbon Steel Square Head Bolt & Nut Kit, 1.77 in, Pkg Qty 24?
This product is currently in stock and ships within 1-2 business days. Estimated lead time: 2-3 weeks. For bulk orders, lead times may vary based on quantity — request a quote for a confirmed delivery date. We can also arrange scheduled recurring shipments to prevent stockouts.
How do I get a custom quote for Black Oxide Grade 8.8 Carbon Steel Square Head Bolt & Nut Kit, 1.77 in, Pkg Qty 24?
Click the "Request a Quote" button on this page or visit our RFQ form. Include your required quantity, delivery location, and any special requirements (specific certifications, custom packaging, recurring delivery schedule). Our sourcing team typically responds within 24 hours with pricing, confirmed lead time, and shipping options.