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Upgrade & Restore Your Tire Changer's Mechanical Rigidity

The 3/8"-16" X 3/4" Hex Head Washer Cap Bolt (Coats 8102459) is a premium, Grade-5 hardened carbon steel structural fastener engineered for mounting brackets and cylinder rods directly to professional tire changer frames. It features a heavy-duty hexagonal head with an integrated flanged washer face to distribute high clamping forces evenly without marring the parent steel.

Under constant operational shocks (like bead-breaking hammer impacts and cylinder strokes), original hardware can stretch, fatigue, or strip. Replacing worn bolts with these rust-resistant, high-tensile fasteners secures your brackets and prevents structural frame play.

Machine Location:

This Grade 5 structural bolt mounts the Bead Breaker Cylinder bracket, the vertical slide lock housing, or the motor support plate securely to the tire changer frame.

Key Features & Specifications

  • Hardened Grade 5 Steel: Medium carbon steel, quenched and tempered to provide excellent structural strength and shear resistance.
  • Zinc-Plated Protection: Finished with an anti-corrosive zinc coating to withstand constant exposure to grease, oil, and shop humidity.
  • Thread Specification: 3/8"-16 UNC coarse threads with a 3/4" total length and integrated washer cap.

Complete Machine Compatibility

This universal replacement washer cap bolt is verified to fit the following Coats Rim Clamp® tire changer families:

  • Coats 200/220 Motorcycle Tire Changer
  • Coats 4050 Center Post
  • Coats 4050A Tire Changer
  • Coats 4070 Tire Changer
  • Coats 50/60/70/80/90 X-Model Series Tire Changer
  • Coats 5030 A/E Tire Changer
  • Coats 5035 A/E Tire Changer
  • Coats 5040 A/E Tire Changer

Frequently Bought Together / Related Parts

These drawing-adjacent parts connect directly next to this mounting bolt on your cylinder and bracket mounting schematics:

🔧 Pro Installer Tip:

Hand-thread the bolt first to ensure clean alignment into the frame’s threaded holes. Apply a drop of medium-strength threadlocker (like blue Loctite) to the threads to prevent loosening from constant bead-breaker hammer shocks, and torque to 25–30 ft-lbs.


Alternative / Cross-Reference Part Numbers: SVI BW-1624-59 (Order SVI F-HFTS-0375-16-0750) | Coats 8102459 | Distributor AM8102459

AMMCO and COATS are registered trademarks of The Coats Company. AEPN Inc. is not associated in any way with The Coats Company, Inc. Any names, symbols, numbers, and descriptions are used for reference purposes only. It is not implied that any part listed is the product of these manufacturers.

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