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Trailer Parts Mart

0.63 Bolt Kit 5 – Bolt Install for Coupler

0.63 Bolt Kit 5 – Bolt Install for Coupler

SKU:0.63BoltKit5

Regular price $22.00 USD
Regular price $0.00 USD Sale price $22.00 USD
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Check the match before you choose.Confirm the part number, dimensions and connection details against the part being replaced.

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Free shipping on orders $30+  ·  30-day easy returns  ·  Same-day dispatch before 7:30 PM

Secure and streamline your trailer coupler installation with the 0.63 Bolt Kit 5—a 5/8″ Grade 8 bolt kit engineered for adjustable channel or coupler mounts. Ideal for OEM-style assembly, aftermarket upgrades, and on-the-road repairs requiring trusted, heavy-duty fasteners.

Kit Includes

  • 4 – 1A10028 Bolts (0.63″, Grade 5, 150 lb-ft torque)
  • 4 – 6F10 Nuts

Features

  • Complete Grade 8 Hardware: Each kit includes 5 bolts, nuts, and washers—ready for immediate installation

  • Heavy-Duty 5/8″ Bolts: Grade 8, fine-thread bolts resist loosening and shear failure under load

  • Locking Nuts Included: Nylon-insert lock nuts prevent strip and seal in high-vibration environments

  • Ideal for Adjustable Channels: Designed to fit standard 5/8″ coupler and tow-ring mounting holes

  • Corrosion-Resistant Finish: Zinc or electro-galvanized coating protects against rust

Specifications

Component Specification
Bolt Size 5/8″ (0.63″)–18 NF, Grade 8
Quantity Bolts: 4 Nuts: 4
Bolt Length 4½ in
Nuts 5/8″ nylon-insert lock nuts
Washers 5/8″ hardened flat washers
Finish Zinc or electro-galvanized
Material High-strength alloy steel (Grade 8)
Torque Rating OEM-level clamp force
Use Case Mounting trailer couplers and tow rings using adjustable channel

Why Choose This Kit

  • OEM-Quality Safety: Grade 8 hardware meets or exceeds manufacturer specs—engineered to maintain tight torque even under vibration

  • One-and-Done Convenience: Includes everything needed for installation—eliminates downtime searching for parts

  • Built for Rough Conditions: Zinc coatings and hardened steel prevent corrosion and provide long-term reliability

Compatible With

    • Adjustable channel couplers from Dexter, Demco, Buyers, Curt, et al.

    • 5/8″ mounting hole trailer couplers, lunette rings, and tow-ring plates

This kit fits on coupler part numbers

Shipping information

Orders under $30 have a $15 shipping charge. Orders of $30 or more ship free.

Returns

Eligible items can be returned within 30 days. Review the return policy before sending an item back.

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