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Coats Lock Washer 3/8 (AM8104200)

3/8" Lock Washer (Coats 8104200)

Price

  • $15.09
  • $16.30

Quantity

Shipping calculated at checkout.

Upgrade & Restore Your Tire Changer's Mechanical Fasteners

The 8104200 Helical Lock Washer (3/8") is a direct-replacement vibration-resistant fastener designed for the high-vibration assemblies of professional tire changers. It is stamped from high-tensile spring steel, engineered to provide continuous spring tension and prevent structural mounting bolts from backing off during operation.

Under constant operational shocks (like bead-breaking cylinder impacts and motor rotations), standard washers split, fatigue, or flatten. Replacing worn lock washers with these high-tension spring washers maintains firm, rigid holding power on your critical cylinder and motor brackets.

Machine Location:

This 3/8" lock washer is placed directly under the hex nuts and bolt heads on the Bead Breaker Cylinder mounting brackets, the electric motor support plates, and the locking tower pivot housings.

Key Features & Specifications

  • High-Tensile Spring Steel: Hardened spring steel provides continuous spring tension, absorbing vibrations and keeping fasteners tight.
  • Internal Helical Design: Split helical spring design creates a mechanical friction bite against both the bolt head and the steel frame, providing absolute resistance against rotational loosening.
  • Size Dimensions: Inside diameter sized precisely for standard 3/8" bolts.

Complete Machine Compatibility

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

  • Coats 1000 / 1000D Balancer
  • Coats 1100 Series Balancer
  • Coats 1250 Series Balancer
  • Coats 700 SS Balancer
  • Coats 850 SS Wheel Balancer
  • Coats 950, 1025, 1050, 1055 Balancer
  • Coats IBS 2000 Wheel Balancer

Frequently Bought Together / Related Parts

These drawing-adjacent parts connect directly next to this lock washer on your motor and cylinder mounting assemblies:

🔧 Pro Installer Tip:

Place this internal-toothed lock washer directly under the nut or bolt head face. The sharp teeth bite into both the fastener and the mating steel frame, providing absolute mechanical friction against vibration. Always replace split or flattened washers to maintain grip.

Alternative / Cross-Reference Part Numbers: SVI BW-1642-00 (Order SVI F-ITLW-0375) | Coats 8104200 | Distributor AM8104200

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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