Insulin Pen Needles 4mm

Ultra-fine 31G × 4mm insulin pen needles designed for subcutaneous injections. Compatible with all standard injection pens. Each needle is sterile, single-use and individually capped to maintain sterility until point of use.

Key Research Areas

• 31 gauge ultra-fine tip — minimises discomfort during subcutaneous injection
• 4mm length — ideal for subcutaneous research protocols
• Compatible with all standard insulin and peptide injection pens
• Individually capped — sterile until point of use
• Single-use design — eliminates cross-contamination risk

Mechanism of Action

Designed for precise subcutaneous delivery. The ultra-fine 31G bore minimises tissue trauma while the 4mm length ensures reliable subcutaneous placement without intramuscular penetration.