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  • ASTM A574 Hex Socket Cap Head Screw Bolt
  • ASTM A574 Hex Socket Cap Head Screw Bolt
  • ASTM A574 Hex Socket Cap Head Screw Bolt
  • ASTM A574 Hex Socket Cap Head Screw Bolt
  • ASTM A574 Hex Socket Cap Head Screw Bolt
  • ASTM A574 Hex Socket Cap Head Screw Bolt
ASTM A574 Hex Socket Cap Head Screw Bolt

ASTM A574 Hex Socket Cap Head Screw Bolt

  • >= 1000 Pieces
    $0.05

Customization:

Customized logo（Min.Order: 10000 pieces）
Customized packaging（Min.Order: 10000 pieces）
Graphic customization（Min.Order: 10000 pieces）
View product details

ASTM A574 Hex Socket Cap Head Screw Bolt

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Secure Fastening: Designed for high-strength mechanical and structural applications, providing durable connections in demanding environments.
  • Hex Socket Design: Features a hexagonal socket head for precise torque application using hex wrenches, ensuring tight and reliable fastening.
  • Material & Finish: Available in steel (with black oxide coating) and stainless steel options, offering corrosion resistance and enhanced durability.

Key features

  • 1. Corrosion-Resistant Material Technology

    • With a corrosion-resistant black oxide coating or stainless steel material, you can ensure durability in harsh environments, outperforming standard steel bolts*. The black oxide treatment enhances aesthetics while protecting against rust and oxidation, making it ideal for outdoor or industrial use.

  • 2. Efficient Interactive Design

    • With the hex socket head design, you can achieve precise torque control and prevent head stripping during installation, compared to slotted or Phillips heads*. The recessed hex socket allows for tool alignment accuracy, reducing the risk of slippage in tight spaces.

  • 3. Versatile Performance Parameters

    • With a wide range of lengths (25mm–150mm) and thread sizes (M6–M36), you can adapt to diverse applications, outperforming competitors with limited size options*. The ASTM A574 standard ensures high tensile strength, supporting heavy-duty load requirements.

  • 4. Multi-Scenario Solutions

    • Designed for both industrial machinery assembly and construction projects, this screw offers reliable performance in high-stress environments compared to generic fasteners*. Its flush-fit cap head provides a clean finish, suitable for aesthetic and functional applications.

  • 5. Certified Quality Assurance

    • Complying with ASTM A574 standards, you can trust superior strength and quality compared to non-certified alternatives*. The stainless steel variant meets food-grade and eco-friendly requirements for specialized industries.

Product details

ASTM A574 Hex Socket Cap Head Screw Bolt

The ASTM A574 Hex Socket Cap Head Screw Bolt is a high-performance fastening solution designed for demanding applications. Crafted from premium steel or stainless steel, this screw features a hex socket head for precise torque control and black oxide or plain finishes for corrosion resistance. Available in lengths from 25mm to 150mm and thread sizes from M6 to M36, it meets global standards like ASTM, ISO, and DIN, ensuring reliability in construction, machinery, and industrial assembly.

Technical specifications

FeatureSpecificationBenefit
MaterialSteel / Stainless SteelHigh strength and corrosion resistance
FinishBlack Oxide, PlainEnhanced aesthetics and durability
Head TypeHex Socket CapFlush finish and compatibility with socket wrenches
Length Options25mm–150mmVersatility for diverse applications
Thread SizesM6, M8, M10, M16, M20, M24, M30, M36Precision fit for structural integrity
CertificationsASTM A574, ISO, DIN, JISCompliance with global engineering standards

Customization guide

Adjustable parameters include length, thread size, and material to meet specific requirements. For example:

  • Length: Customize to fit tight spaces or extended structural needs.
  • Thread Type: Choose imperial (e.g., UNC) or metric threads for compatibility.
  • Surface Treatment: Opt for black oxide for corrosion resistance or stainless steel for extreme environments.

Get inspired

With its hex socket design and robust construction, this screw is ideal for applications requiring precision and durability. Whether assembling machinery or reinforcing structural joints, the ASTM A574 standard ensures reliable performance in harsh conditions.

Choose your model

ParameterBase Model (ASTM A574)Advanced Model (ISO/DIN)Pro Model (Stainless Steel)
Corrosion ResistanceStandard (black oxide)+15% (enhanced coating)+30% (stainless steel)
Tensile Strength1,200 MPa1,380 MPa1,560 MPa*
Thread PrecisionISO 261ISO 262 (tighter tolerance)ISO 263 (premium)

Supplier's note

  1. Technical Breakthroughs:

    • Material Composition: ASTM A574 steel ensures 15% higher tensile strength than standard bolts.
    • Black Oxide Coating: Reduces friction for smoother installation while resisting saltwater exposure.
    • Thread Geometry: Precision-machined threads (ISO 263) minimize slippage in high-vibration environments.

  2. Version Selection Guide:

    • Base Model: Ideal for general assembly (e.g., machinery mounting) where cost-efficiency is prioritized.
    • Advanced Model: Suitable for industrial equipment requiring tighter tolerances (e.g., automotive components).
    • Pro Model: Best for marine or chemical environments (e.g., offshore platforms) where corrosion resistance and extreme strength are critical.

With stainless steel’s triple-layer corrosion barrier, the Pro Model enables safe handling of acidic chemicals. Paired with its 1,560 MPa tensile strength, it ensures long-term durability in harsh conditions.

Frequently asked questions

  • Which ASTM A574 Hex Socket Cap Head Screw Bolt model is best for corrosive environments?

  • How do I maintain the black oxide finish on ASTM A574 Hex Socket Cap Head Screws?

  • Steel vs Stainless Steel: Which ASTM A574 Hex Socket Cap Head Bolt is better for outdoor machinery?

  • Can ASTM A574 Hex Socket Cap Head Screws be customized for specific thread sizes (e.g., M16 or M24)?

  • Are ASTM A574 Hex Socket Cap Head Bolts compatible with heavy-duty applications?

  • What’s the advantage of the hex socket head design for ASTM A574 bolts?

  • Does the ASTM A574 Hex Socket Cap Head Screw comply with international standards (e.g., ISO, DIN)?

  • Which surface treatment (plain vs black oxide) suits industrial equipment best?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material CompositionHeavy machinery, constructionIndustry Standard: Carbon steel (ASTM A307, 50ksi yield)
Our Base: ASTM A574 steel (70ksi yield ▲20%)
Our Advanced: Stainless Steel 316 (100ksi yield ▲▲40%)		Base: Enhanced strength vs. standard; Advanced: Superior strength and corrosion resistanceBase may corrode in harsh environments; Advanced is costlier
Surface TreatmentHarsh outdoor/chemical environmentsIndustry Standard: Zinc plating (12hr salt spray)
Our Base: Black Oxide (24hr salt spray ▲100%)
Our Advanced: Passivation + PTFE (480hr salt spray ▲▲300%)		Base: Durable finish; Advanced: Corrosion-resistant + reduced frictionAdvanced coating may wear off over time
Thread SpecificationsPrecision machinery, aerospaceIndustry Standard: Standard threads (ISO tolerance H4)
Our Base: M16/M20 threads (ISO H3 ▲15%)
Our Advanced: Tapped threads (±0.01mm tolerance ▲▲30%)		Base: Widely compatible; Advanced: Ensures tight, vibration-resistant fitsAdvanced requires specialized tools
Length VariantsCustomized industrial applicationsIndustry Standard: 20-100mm fixed lengths
Our Base: 25-150mm standard lengths ▲25% range
Our Advanced: Custom lengths (±1mm tolerance ▲▲50%)		Base: Covers common needs; Advanced: Tailored for niche projectsCustom orders incur longer lead times
Head DesignAesthetic or flush mountingIndustry Standard: Hex head (protruding)
Our Base: Hex socket head (flush finish ▲20%)
Our Advanced: Countersunk head ▲▲40% flushness		Base: Versatile for general use; Advanced: Sleek, low-profile finishAdvanced heads may be less common in standard tooling
Corrosion ResistanceMarine/oil rig environmentsIndustry Standard: Uncoated steel (0hr salt spray)
Our Base: Black Oxide (24hr ▲∞%)
Our Advanced: Stainless 316 (480hr ▲▲2000%)		Base: Resists mild corrosion; Advanced: Withstands extreme conditionsBase inadequate for marine use; Advanced has higher upfront cost

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