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Starbit Socket 3/8 Drive T40H Tamper Proof - Sunex Tools

Part #: SU340TP

The Sunex Tools SU340TP STARBIT SKT 3/8 DR T40H TAMPER PROOF socket is engineered for professional technicians and mechanics who require reliable performance on specialized security fasteners. This robust, impact-grade socket features a 3/8-inch drive and a T40H tamper-proof (internal star with pin) design, making it an essential tool for automotive and industrial applications where tamper-resistant Torx fasteners are encountered. Its durable construction ensures consistent and efficient operation, even under high-torque conditions.

Key Features

  • Impact-Grade Durability: Forged from high-strength chrome molybdenum (Cr-Mo) alloy steel, this socket is built for maximum durability and designed specifically for use with impact wrenches and pneumatic tools.
  • Tamper-Proof Design: Features a T40H tamper-proof internal star design with a pin, providing a secure and precise fit for specialized security fasteners and preventing unauthorized removal.
  • Enhanced Fastener Engagement: The 6-point geometry maximizes contact with fastener flats, effectively reducing the risk of rounding and ensuring superior torque transfer.
  • Corrosion Resistance: An industrial black phosphate coating provides excellent resistance to corrosion, extending the tool's service life in demanding shop environments.
  • Professional Standards: Designed and manufactured to meet or exceed ANSI and ASME standards for impact sockets, guaranteeing consistent quality and reliable performance.
  • High-Visibility Markings: Features clear markings for quick and easy identification, even in low-light conditions.

Applications

This 3/8" drive T40H tamper-proof STARBIT socket is an indispensable tool for a wide range of tasks requiring access to security fasteners. It is commonly used in automotive repair for components like engines, transmissions, seatbelts, and airbag controls, where manufacturers specify tamper-resistant Torx hardware to prevent unauthorized modification or ensure safety. Beyond vehicle maintenance, it is also vital for machinery maintenance, electronics repair, and industrial assembly where tamper-resistant fasteners are prevalent to deter vandalism, theft, or unauthorized access to sensitive equipment.

Specifications

  • Manufacturer: Sunex Tools
  • Model Number: SU340TP
  • Drive Size: 3/8 inch
  • Bit Type: T40H Tamper Proof Internal Star
  • Material: Chrome Molybdenum Alloy Steel
Only 1 left in stock - order soon

$4.64

Free shipping on orders over $250
Lower 48 states and DC. Excludes freight and oversize items.
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This product was added to our catalog on Saturday 11 July, 2026.

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