M14 x 1.25, Lock Bolt, 60° Taper, 17/19 Hex

M14 x 1.25, Lock Bolt, 60° Taper, 17/19 Hex

A security wheel bolt with M14 × 1.25 thread and 60° conical seat, designed to replace one standard bolt per wheel to provide anti-theft protection. The internal lock pattern requires the coded key supplied in the set for removal; standard sockets and impact tools cannot engage it.

Available in black or chrome, with thread lengths of 27mm, 40mm, and 45mm to suit different hub and spacer configurations. The dual 17/19mm hex key design allows installation using a standard 17mm or 19mm socket, while the lock bolt itself cannot be gripped by conventional tools.

Quick Specifications

• Thread: M14 × 1.25
• Seat Type: 60° conical taper
• Key Hex: Dual 17mm / 19mm (key supplied)
• Thread Lengths: 27mm | 40mm | 45mm
• Finish: Black zinc or chrome
• Material: Grade 10.9 high-tensile carbon steel
• SKU: KB-427B
• Sold: Individually (1 lock bolt + 1 coded key)

How the Lock Works

The bolt head features an internal coded pattern that mates exclusively with the supplied key socket. Unlike a rotating collar design, the key physically engages the drive face, meaning only the matching coded tool can apply torque. 

The 17/19mm dual-hex outer body lets you position the key socket easily, but an unmatched socket will simply spin against the smooth outer surface.

Common Applications

Commonly specified on vehicles requiring M14 × 1.25 taper-seat bolts with conical alloy wheel mounting, including:

• BMW: Selected 1, 3, 4, 5 Series models using M14 × 1.25 thread
• Aftermarket alloy wheels with 60° taper bolt holes and M14 × 1.25 thread
• Spacer setups requiring extended bolt lengths (use 40mm or 45mm variants)