About This

• COMPLETE 500+7 PCS KIT: Stop hunting for missing parts. This all-in-one kit includes 500 brass inserts across 6 essential SAE sizes (#2-56, #4-40, #6-32, #8-32, #10-32, 1/4"-20) PLUS 7 dedicated heat-set soldering tips. Perfectly matched for your standard 936/907 soldering iron, everything you need for repairs, modeling, and electronic DIY is right in one box
• PREMIUM BRASS & HIGH-TEMP DURABILITY: Manufactured from high-purity, solid brass with excellent thermal conductivity. Specially engineered to withstand hot melt temperatures up to 300°C / 572°F without deformation. The superior anti-oxidation and corrosion-resistant finish ensures these nuts never rust, providing lifetime reliability even in humid workshops
• SECURE ANTI-SPIN KNURLED GRIP: Features a dense 45-degree helical knurled design on the exterior. This unique structure dramatically increases rotational friction with thermoplastics. Once heat-set into PLA, PETG, ABS, or Nylon, these inserts lock firmly in place, delivering outstanding pull-out force and preventing annoying spinning or loose threaded holes
• WIDE APPLICATION FOR ALL THERMOPLASTICS: Professionally engineered for precision and heavy-duty needs. Perfectly compatible with 3D printed models, drone frames, PC motherboards, electronic enclosures, and automotive plastic parts. Sizes #2-56 to #4-40 for micro parts; #6-32 to #8-32 for RC cars/drones; #10-32 to 1/4"-20 for toolboxes and chassis
• EFFORTLESS INSTALLATION - BEGINNER FRIENDLY: Achieve factory-level threads in seconds! Simply use a standard soldering iron with our included install tips. The precision-milled tips ensure perfectly vertical and straight insertion every time, preventing tilting or overheating damage. Ideal for both professional technicians and novice maker hobbyists

Overview

• Size : #2-56 #4-40 #6-32 #8-32 #10-32 1/4"-20
• Color : Gold
• Material : Brass
• Brand : Joeqolu
• Item dimensions L x W x H : 6.7 x 4 x 0.7 inches