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Grade 8.8 Carbon Steel Black Oxide Hex Bolt, 5/16"-11 x 2-3/4" Coarse Thread, Pkg Qty 100

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Industrial · SKU: AE2177844

Grade 8.8 Carbon Steel Black Oxide Hex Bolt, 5/16"-11 x 2-3/4" Coarse Thread, Pkg Qty 100 (11X2)

This Grade 8. 8 carbon steel hex bolt provides a reliable, high-strength fastening solution for general construction and industrial assembly.

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$59.99
$0.60/each(100 pcs/pkg)

Volume Pricing - Buy More, Save More

QuantityDiscountUnit Price
1 - 10-$59.99
11 - 50-5%$56.99
51+-10%$53.99
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Quick Answer

How Buyers Should Evaluate Grade 8.8 Carbon Steel Black Oxide Hex Bolt, 5/16"-11 x 2-3/4" Coarse Thread, Pkg Qty 100 (11X2)

This Grade 8. 8 carbon steel hex bolt provides a reliable, high-strength fastening solution for general construction and industrial assembly. Use the quick checks below to decide whether direct checkout is enough or whether an RFQ will reduce sourcing risk.

Quick Spec Check

  • System of Measurement: Metric
  • Material Grade/Class: 8.8
  • Material: Carbon Steel

Purchase Details

  • Online price starts at $59.99.
  • Minimum order quantity: 1 unit.
  • Pack quantity: 100 / Each.
  • Lead time: 2-3 weeks.

Use RFQ When

  • Use RFQ when you need bulk pricing, alternate pack sizes, or multi-SKU comparison.
  • Request support when fit, material, or substitute selection needs confirmation before order.
  • Escalate to sourcing when timeline, freight, or stocking strategy matters more than one-off checkout speed.

Technical Specifications

System of MeasurementMetric
Material Grade/Class8.8
MaterialCarbon Steel
Thread SizeM8
FinishBlack Oxide
Length2.76 in
Thread TypeCoarse
Product Details

Full Description

Application context, construction notes, and selection details for evaluating fit before purchase or repeat ordering.

Overview

This Grade 8.8 carbon steel hex bolt is engineered for demanding fastening applications in construction, machinery assembly, and general fabrication. It provides a robust and dependable connection where high tensile and shear strength are required. The black oxide finish delivers a uniform, dark appearance along with a layer of protection against rust and corrosion in non-severe environments. Supplied in a convenient bulk pack of 100 pieces, this fastener is ideal for high-volume projects, maintenance kits, and industrial inventory.

Key Features

Manufactured from medium carbon steel for a high strength-to-weight ratio Heat-treated to achieve a Grade 8.8 mechanical property rating Black oxide surface finish for basic corrosion resistance and a low-glare aesthetic Partial thread (non-threaded shank) design maximizes strength under shear loads Coarse thread pitch ensures faster installation and reduced cross-threading risk Standard hex head allows for secure wrenching with common tools Bulk packaging of 100 units supports cost-effective procurement and job site efficiency

Specifications

System of Measurement: Metric (Imperial equivalent provided) Material Grade/Class: 8.8

Material

Carbon Steel Thread Size: M8 (5/16 inch nominal diameter) Finish: Black Oxide Length: 2.76 inches (70mm) Thread Pitch: Coarse (1.25mm standard, 11 threads per inch equivalent) Head Style: Hex Threading: Partial (Length of thread is approximately half the total bolt length) Package Quantity: 100 pieces

Applications

General structural steel connections and framing Assembly of industrial equipment, conveyors, and platforms Repair and maintenance in manufacturing and warehouse facilities Construction of trailers, racks, and storage systems Fastening in automotive and machinery components where vibration resistance is needed

Frequently Asked Questions

What are the exact dimensions and specifications of this bolt?
This is a Grade 8.8 carbon steel hex bolt with a black oxide finish. It has a 5/16"-11 coarse thread and is 2-3/4" long, with a partially threaded shank. The bolt meets the strength and durability standards of the 8.8 material grade.
What are the typical applications for this specific grade and size of bolt?
This Grade 8.8 bolt is suitable for general-purpose fastening in machinery, automotive assemblies, construction, and structural frameworks where high strength and corrosion resistance are required. The black oxide finish provides a basic layer of protection against rust in non-severe environments.
How is this product packaged, and what is the minimum order quantity?
This bolt is sold in a bulk package containing 100 pieces. The packaging is designed for industrial use, ensuring all parts are securely contained and protected during shipping and storage.
Grade 8.8 Carbon Steel Black Oxide Hex Bolt, 5/16"-11 x 2-3/4" Coarse Thread, Pkg Qty 100 (11X2) | Machrio