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TOBO GROUP LTD 86-021-31261985 sales12@metalpipe.cn
Built-In Anti-Rotation Single-Side Access Required No Exposed Edges Rust-Resistant Options

Built-In Anti-Rotation Single-Side Access Required No Exposed Edges Rust-Resistant Options

  • Highlight

    rust-resistant countersunk carriage bolts

    ,

    single-side access carriage bolts

    ,

    anti-rotation countersunk bolts

  • Productname
    Countersunk Carriage Bolts
  • Bolttype
    Carriage Bolt
  • Packagequantity
    50 Pieces
  • Thread Size
    M6 M8 M10 M12 M16 M20
  • Surface
    Zinc-plated,Nickel-plated,Black Oxide
  • Headtype
    Countersunk
  • Drive Type
    Hex Socket
  • Keyword
    Carriage Bolt,bolt Nut
  • Types
    Round Head Bolts
  • Place of Origin
    Shanghai, China
  • Brand Name
    TOBO
  • Certification
    ISO/TUV/SGS
  • Model Number
    Countersunk Carriage Bolts
  • Minimum Order Quantity
    1Pcs
  • Price
    Negotiable
  • Packaging Details
    Standard Shipping Package
  • Delivery Time
    15-30 Workdays
  • Payment Terms
    T/T, Western Union
  • Supply Ability
    15tons per month

Built-In Anti-Rotation Single-Side Access Required No Exposed Edges Rust-Resistant Options

Product Name

DomeHead Square Neck Carriage Bolt

Product Description

A classic fastener combining a smooth dome head with an integrated square neck. Installs flush into countersunk holes for clean, snag-free surfaces. The square shoulder grips the material during tightening, preventing spinning and allowing single-wrench installation.

Product Specification

One-piece bolt with rounded head and square under-head section. Designed for pre-drilled countersunk holes. Requires only one wrench for fastening. Available in multiple materials for various applications.

Key Product Parameters

 
 
Parameter Specification
Sizes 1/4" to 3/4" 6mm to 20mm
Lengths 1" to 8" 25mm to 200mm
Head Type Low Dome Countersunk
Neck Type Square (Anti-Spin)
Thread Coarse / Full Length
Materials Carbon Steel, Stainless 304/316
Finishes Plain, Zinc, Hot-Dip Galvanized
Nut Required Hex Nut (Sold Separately)
Standards DIN 603, ASME B18.5

Product Applications

Ideal for connections needing strength and a clean look.

  1. Wood Structures: Beams, posts, timber framing.

  2. Decking: Boardwalks, decks, railings.

  3. Playgrounds: Slides, swings, safety surfaces.

  4. Marine: Docks, piers, boat ramps.

  5. Furniture: Benches, tables, outdoor seating.

  6. Fencing: Gates, agricultural enclosures.

Product Advantages

Designed for simpler, safer, better-looking connections.

  1. Single-Wrench Work: Square neck locks in place, no need to hold the head.

  2. Clean Finish: Dome head sits flush for a professional look.

  3. Safer Surfaces: No protruding edges to catch clothing or skin.

  4. Stays Put: Square neck prevents spinning from vibration.

  5. Weather Ready: Multiple finishes for indoor, outdoor, or marine use.

  6. Multi-Material: Works in wood, composites, and soft metals.

Product Features

Practical design elements for reliable everyday use.

  1. Square Anti-Spin Neck: Embeds into material, keeps bolt from turning.

  2. Smooth Dome Head: Low profile, flush fit, snag-free.

  3. Full Threading: Complete thread length for strong nut engagement.

  4. Countersunk Profile: Matches standard drill bits for flush install.

  5. Rust Protection: Zinc or galvanized options for outdoor life.

  6. Universal Fit: Standard sizes work with common nuts and washers

 

 

 

 

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FAQ

1. Are you trading company or manufacturer ?
We are manufacturer ,You can see the Alibaba certification.
2. How long is your delivery time?
Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
3. Do you provide samples ? is it free or extra ?
Yes, we could offer the sample for free charge but need pay the cost of freight.
4. What is your terms of payment ?
Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.