The JinZeYou M3 Bolts and Nuts Set is a hardware kit supplying 705 M3 fasteners for everyday repair and assembly tasks. Having a comprehensive assortment removes the hassle of hunting for single screws during bicycle maintenance or furniture assembly. Are the sizes and carbon-steel construction suitable for durable, reliable repairs?
⚡ At a Glance
- • Material Strength: High-quality carbon steel with corrosion-resistant treatment, designed to resist bending and breaking under normal use
- • Best for: DIYers, home mechanics and small workshops handling bicycle repairs, furniture assembly and electronics maintenance
- • Not ideal for: Projects requiring non-M3 sizes or specialised decorative finishes and specific stainless-steel grades
Carbon-steel hex socket head cap screws pair with nuts and 235 lock washers to form secure fastenings. A clear thread pitch and hex head design help deliver balanced torque and precise tightening.
Long-lasting repairs – Thanks to carbon steel construction
Carbon steel material is described as high-strength and corrosion-resistant, with workmanship that reduces the risk of bending or breaking. Clear thread cutting and uniform pitch support consistent engagement across fasteners.
Durable fastenings hold up in repeated maintenance cycles, so joints stay reliable over time. Corrosion resistance helps preserve integrity in typical workshop and outdoor use.
Secure tightening – With hex socket head cap screws and lock washers
Hex socket head cap screws use a recessed socket that accepts Allen keys, while hexagonal head geometry balances applied force during torqueing. The kit includes 235 lock washers and 235 nuts to lock connections.
Balanced torque reduces the risk of stripping and allows tighter clamping than slotted heads. Lock washers and matching nuts help prevent loosening from vibration during bicycle or machinery use.
Ready for varied jobs – Thanks to a comprehensive 705-piece assortment
The set contains multiple screw lengths with exact piece counts: 40× M3×6mm, 40× M3×8mm, 40× M3×10mm, 40× M3×12mm, 40× M3×16mm, 35× M3×25mm, plus 235 lock washers and 235 nuts. Threads are described as clear and uniform.
A wide choice of lengths reduces trips to the shop and suits different fastening depths. High quantities make batch repairs and ongoing projects easier to manage without frequent restocking.
✨ The 4 Key Reasons for JinZeYou M3 Bolts and Nuts Set
- Hex socket head cap screws – Ensures balanced torque and reduces head stripping risk
- Clear, uniform threads – Deliver consistent engagement for vibration-resistant joints
- 235 lock washers and 235 nuts – Enable secure locking for repeated assembly and maintenance tasks
- Comprehensive length assortment – Includes six screw lengths to match varied fastening depths
📋 Technical Details at a Glance
- Category: M3 fastener kit
- Brand: JinZeYou
- Material: Carbon steel, corrosion-resistant
- Finish: Black machine screw appearance (as listed in product title)
- Screw head type: Hex socket head cap screws
❓ Frequently Asked Questions
Q: Are washers and nuts included in the set?
A: Yes, the assortment includes 235 lock washers and 235 matching nuts as part of the 705-piece total.
Q: What screw sizes and quantities come in the kit?
A: The set contains 40× M3×6mm, 40× M3×8mm, 40× M3×10mm, 40× M3×12mm, 40× M3×16mm and 35× M3×25mm screws, plus the washers and nuts listed.
Q: Which tool is needed to tighten the screws?
A: Hex socket head cap screws require an Allen key for tightening, the hexagonal head design helps balance force during torqueing.
🏆 Our Verdict
Suitable for DIYers, home mechanics and small workshops that need a ready supply of M3 fasteners. A 705-piece carbon-steel kit with hex socket heads, lock washers and nuts provides secure, repeatable assemblies. Durable construction and large quantities deliver clear long-term value for ongoing maintenance and assembly tasks.
