Insight Square BB M8 Bolts

Product Overview

The Insight Square BB M8 Bolts are replacement fasteners for Insight Euro Square BMX racing bottom bracket spindles. This two-pack includes nylon-lock nuts to prevent loosening during aggressive riding and racing.

Key Features

• Euro Square spindle compatibility — M8 x P1.0 x 15L specification matches Insight Square bottom bracket threading and mounting geometry
• Nylon-lock nuts included — Integrated nylon inserts prevent vibration-induced loosening during high-impact BMX racing
• Two-bolt pack — Provides complete replacement set for both crank arms on a BMX crankset
• Precision threading — M8 x P1.0 pitch ensures secure engagement without cross-threading or over-tightening damage
• 15mm length — Engineered for optimal thread engagement on Euro Square-compatible crank arms without bottoming out

Technical Specifications

• Bolt size: M8 x P1.0 x 15mm length
• Thread pitch: P1.0 (fine pitch)
• Nut type: Nylon-lock (nylock)
• Quantity: Two bolts per pack
• Material: Steel (standard specification)
• Compatibility: Insight Euro Square bottom bracket spindles only
• Finish: Plated or natural steel

Compatibility and Ideal Use Cases

Compatible exclusively with Insight Euro Square bottom bracket spindles and Euro Square-compatible BMX cranksets. Essential for riders replacing worn, stripped, or missing crank arm bolts on Square bottom bracket systems. Ideal for BMX racers requiring reliable crank fastening during high-stress racing and training. Nylon-lock nuts eliminate need for repeated tightening due to vibration loosening. Direct replacement—no modifications required.