English
Brand Name: KernalCoil Thread Insert
Place of Origin: Shenzhen, China
Type: 307 type with 3 round cutting hole
Material: Stainless Steel 303( Optional 304/316)
Thread Specification: Metric/ISO International Standard
Certification: ISO 9001:2015, IATF 16949:2016, SGS
Term of Trade: EXW/FOB/CIF/DDP
Color: Retaining the original color of stainless steel with a silver-white or light gray sheen
Surface Treatment: Passivation or white washing process
Size Specification: Metric M3-0.5 to M16-2.0
Reliability Test: Dimensions, Hardness Test, Salt Spray Endurance Test
Application: Aviation,Automotive,Machinery, Motorsport and other industry
Detail
Self-Tapping Threaded Protective Sleeve: Advanced Thread Reinforcement System
As innovative thread repair systems, self-tapping inserts provide dual-directional threading that significantly enhances fastener retention in soft substrates. Engineered with precision-cut internal/external helical grooves, these thread reinforcement devices deliver exceptional performance in:
High-Strength Thread Reinforcement
Creates durable mating threads in low-density materials including:
Polymers (Nylon, POM, ABS)
Non-ferrous metals (Aluminum A380, Copper C11000)
Cast iron (Grade G2500)
Increases thread strip resistance by 300% compared to direct tapping
Dual-Function Application
Primary use: Original equipment thread reinforcement
Secondary function: Damaged thread restoration (SAE J429 Grade 5 equivalent)
Configuration Specifications
Type 302: Slotted drive design (ISO 10664 compliant)
Type 307/308: Triple-port installation interface (DIN 7500-1 standard)
Threaded Insert Materials: Global Standards & Specifications
International Material Options:
Case-Hardened Steel
Zinc-plated (ISO 4042) or yellow chromate finish
Surface hardness: 58-62 HRC
Ideal for non-ferrous substrates (aluminum, plastics)
Austenitic Stainless Steel
Grades: 303/304/316 (ASTM A276)
Passivated surface treatment
Corrosion resistance: Grade 316 withstands 1,000hrs salt spray
Brass Alloys
C36000/C37700 (UNS standards)
Electropolished finish for low-torque applications
Domestic Material Solutions:
Carbon Steel
Grade 1215 (AISI equivalent) with color zinc plating
Case depth: 0.1-0.3mm after carburizing (250-280 HB)
Stainless Steel
Quenched & tempered SUS303/304
Max tensile strength: 800MPa (ISO 3506-2 compliant)
Optimized Features:
MIL-DTL-89501C compliant coatings
Temperature range: -40°C to +400°C
RoHS 2011/65/EU certified
|
Type 307 |
Length B(mm) |
External Thread E |
Reference Drilling Diameter (mm) |
Minimum Drilling |
|
|
Aluminum |
Cast Iron |
||||
|
M3-0.5 |
4 |
M5-0.6 |
4.6-4.7 |
4.7-4.8 |
6 |
|
M4-0.7 |
6 |
M6.5-0.8 |
6.0-6.1 |
6.1-6.2 |
8 |
|
M5-0.8 |
7 |
M8-1.0 |
7.4-7.5 |
7.6-7.7 |
9 |
|
M6-1.0 |
8 |
M10-1.25 |
9.3-9.4 |
9.5-9.6 |
10 |
|
M8-1.25 |
9 |
M12-1.5 |
11.1-11.3 |
11.3-11.5 |
11 |
|
M10-1.5 |
10 |
M14-1.5 |
13.1-13.3 |
13.3-13.5 |
13 |
|
M12-1.75 |
12 |
M16-1.75 |
15.0-15.3 |
15.3-15.5 |
15 |
|
M14-2.0 |
14 |
M18-2.0 |
17.0-17.2 |
17.3-17.5 |
17 |
|
M16-2.0 |
14 |
M20-2.0 |
19.0-19.2 |
19.3-19.5 |
17 |