M8 Gas Strut Ball Stud Bolt 13mm Ball DIN 71803 Zinc Plated – 2 Pack | SpringFix UK

M8 Gas Strut Ball Stud Bolt — 2 Pack, 13mm Ball DIN 71803 Zinc Plated

Heavy-duty M8 ball studs with 13mm ball — for larger gas struts requiring bigger contact surface and higher load capacity. Common in automotive, commercial and industrial applications.

Key Specifications

• Standard: DIN 71803
• Thread: M8 male
• Ball diameter: 13mm
• Construction: Zinc plated steel
• Finish: Precision-turned ball for smooth articulation under high load

Perfect For

• Older or larger automotive bonnet mounts
• Commercial vehicle tailgate strut fixings
• Heavy-duty campervan compartment lifts
• Marine hatch heavy-load applications
• Larger industrial machinery gas struts
• Custom mounting requiring higher load rating

Compatibility

Pairs with our M8/13mm ball joint socket (BJ13-2588) — see the Gas Strut End Fittings collection.

Installation Tips

• Bolts through M8 clearance hole with washer and nut
• 13mm ball provides ~1.7× more contact surface than 10mm — better for high-load struts
• Use nyloc lock nut to prevent loosening under vibration
• Always install in matched pairs for balanced lifting

Frequently Asked Questions

When do I need 13mm vs 10mm? If your existing ball stud is roughly 13mm in diameter, or your original gas strut socket is 13mm. Measure before ordering — mixing sizes causes disconnection.

Is this backwards compatible with 10mm sockets? No — always match ball to socket exactly.

Why choose 13mm over 10mm? More load capacity, more contact surface, less wear over time. Recommended for gas struts over 400N.

Fast UK Dispatch

Orders placed Monday to Sunday before 16:00 are dispatched same-day from UK stock via Royal Mail, Yodel, UPS or DPD.